Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training...

145
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated June 2013

Transcript of Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training...

Page 1: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Basic Training

April 2011 Edition

Minor Changes April 2012

Updated June 2013

2

Why are we here

Storm water and urban runoff from areas of new development and redevelopment must be managed to control impacts to Beneficial uses of receiving waters Integrity of streams and channels and Natural habitats

City and county staff are responsible for implementing development regulations within their jurisdiction including the Water Quality Management Plan program

The development community is responsible for complying with regulations that require urban runoff quality and quantity management be a part of most new projects

3

Training Session Objectives

To learn about current requirements forProject-Specific Water Quality Management Plansfor new development and redevelopment projects

in the Riverside CountySanta Margarita River Watershed

amp

To learn about upcoming changes to these requirements

4

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

5

Prerequisites for SuccessfulCourse Completion

A desire to learn about Water Quality Management Plans

A willingness to participate in the learning process

A basic understanding of the development review and approval process at your agency or at the agencies where you submit plans

A copy of the document ldquoRiverside County Water Quality Management Plan for Urban Runoffrdquo is helpful Verify the Watershed Verify the Date httprcfloodorgNPDES

A Key Document for

Agencies and the

Development Industry

6

Introductions Your Presenter ndash AEI-CASC Consulting

Jeff Endicott PE BCEE CPESC Audience Introductions

Agencies Engineering Planning Building Code Enforcement Others

Development Industry Developers and Builders Planners Architects Engineers Contractors Others

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 2: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

2

Why are we here

Storm water and urban runoff from areas of new development and redevelopment must be managed to control impacts to Beneficial uses of receiving waters Integrity of streams and channels and Natural habitats

City and county staff are responsible for implementing development regulations within their jurisdiction including the Water Quality Management Plan program

The development community is responsible for complying with regulations that require urban runoff quality and quantity management be a part of most new projects

3

Training Session Objectives

To learn about current requirements forProject-Specific Water Quality Management Plansfor new development and redevelopment projects

in the Riverside CountySanta Margarita River Watershed

amp

To learn about upcoming changes to these requirements

4

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

5

Prerequisites for SuccessfulCourse Completion

A desire to learn about Water Quality Management Plans

A willingness to participate in the learning process

A basic understanding of the development review and approval process at your agency or at the agencies where you submit plans

A copy of the document ldquoRiverside County Water Quality Management Plan for Urban Runoffrdquo is helpful Verify the Watershed Verify the Date httprcfloodorgNPDES

A Key Document for

Agencies and the

Development Industry

6

Introductions Your Presenter ndash AEI-CASC Consulting

Jeff Endicott PE BCEE CPESC Audience Introductions

Agencies Engineering Planning Building Code Enforcement Others

Development Industry Developers and Builders Planners Architects Engineers Contractors Others

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 3: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

3

Training Session Objectives

To learn about current requirements forProject-Specific Water Quality Management Plansfor new development and redevelopment projects

in the Riverside CountySanta Margarita River Watershed

amp

To learn about upcoming changes to these requirements

4

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

5

Prerequisites for SuccessfulCourse Completion

A desire to learn about Water Quality Management Plans

A willingness to participate in the learning process

A basic understanding of the development review and approval process at your agency or at the agencies where you submit plans

A copy of the document ldquoRiverside County Water Quality Management Plan for Urban Runoffrdquo is helpful Verify the Watershed Verify the Date httprcfloodorgNPDES

A Key Document for

Agencies and the

Development Industry

6

Introductions Your Presenter ndash AEI-CASC Consulting

Jeff Endicott PE BCEE CPESC Audience Introductions

Agencies Engineering Planning Building Code Enforcement Others

Development Industry Developers and Builders Planners Architects Engineers Contractors Others

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 4: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

4

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

5

Prerequisites for SuccessfulCourse Completion

A desire to learn about Water Quality Management Plans

A willingness to participate in the learning process

A basic understanding of the development review and approval process at your agency or at the agencies where you submit plans

A copy of the document ldquoRiverside County Water Quality Management Plan for Urban Runoffrdquo is helpful Verify the Watershed Verify the Date httprcfloodorgNPDES

A Key Document for

Agencies and the

Development Industry

6

Introductions Your Presenter ndash AEI-CASC Consulting

Jeff Endicott PE BCEE CPESC Audience Introductions

Agencies Engineering Planning Building Code Enforcement Others

Development Industry Developers and Builders Planners Architects Engineers Contractors Others

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 5: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

5

Prerequisites for SuccessfulCourse Completion

A desire to learn about Water Quality Management Plans

A willingness to participate in the learning process

A basic understanding of the development review and approval process at your agency or at the agencies where you submit plans

A copy of the document ldquoRiverside County Water Quality Management Plan for Urban Runoffrdquo is helpful Verify the Watershed Verify the Date httprcfloodorgNPDES

A Key Document for

Agencies and the

Development Industry

6

Introductions Your Presenter ndash AEI-CASC Consulting

Jeff Endicott PE BCEE CPESC Audience Introductions

Agencies Engineering Planning Building Code Enforcement Others

Development Industry Developers and Builders Planners Architects Engineers Contractors Others

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 6: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

6

Introductions Your Presenter ndash AEI-CASC Consulting

Jeff Endicott PE BCEE CPESC Audience Introductions

Agencies Engineering Planning Building Code Enforcement Others

Development Industry Developers and Builders Planners Architects Engineers Contractors Others

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 7: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

7

Training Process

RestroomsCell phones ndash turn off set to vibrate or set to

stunA mid-session break is plannedQuestions

We have a lot to cover ldquoIn-scoperdquo questions ndash Please signal

Will take them to the extent that many will benefit ldquoOut-of-scoperdquo questions will be deferred

Goal ndash To complete the session within 4 hours Sticking to the process will help accomplish this

goal

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 8: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Margarita Watershedof

Riverside County

Water Quality Management Plan Overview

April 2011 Edition

Minor Changes April 2012

Updated June 2013

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 9: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

9

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 10: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

10

Riverside CountyDrainage Area Management Plan (DAMP)

Describes urban runoff management strategies planned by the municipal NPDES permit holders

Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect

until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit

Statushellip Updated April 2007 httprcfloodorgNPDES

Primarily a tool for

Agency Staff

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 11: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Riverside CountyDrainage Area Management Plan (DAMP)

11

Will the requirements in the permits and strategies described in the DAMP ever change Yes

Whatrsquos driving the changes in requirements and strategies The most recent municipal NPDES storm water permit Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 12: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Riverside County Municipal NPDES PermitsSanta Margarita River Watershed Permittees

Riverside County Flood Control and Water Conservation District

County of Riverside Murrieta TemeculaWildomar

12

Listed as a Permittee under the SAR amp SMR Watershed permits

By agreement with the Regional Boards local program based on SMR permit

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 13: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Riverside CountyDrainage Area Management Plan (DAMP)

13

When will the WQMP program changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

An overview of the program changes or evolution will be discussed later today

In the meantimehellip Continue to implement the strategies and programs

that have been in place for many years now Those strategies and programs are the focus of

todayrsquos training

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 14: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Riverside CountyDrainage Area Management Plan (DAMP)

14

Existing Urban Runoff Management Strategies for

New Development and Redevelopment as

Described in the DAMP

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 15: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

15

DAMP Section 6Development Planning

Covers the entire spectrum Land Use Planning

General Plans General Plan

Amendments Environmental Review

Initial Studies Negative Declarations Environmental Impact

Reports Development Review

Approval and Permitting Conditioning Permitting Project closeout

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 16: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval And Permitting

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 17: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

17

Three Project Categories

RedevelopmentNew developmentOther development

Development ProjectReview Approval Permitting

And Inspection Process

Knowing your project category is key to understanding the requirements for the project

Today wersquoll look brieflyat definitions of each

category

For detailed definitions consult program Guidance

Documents (DAMPWQMP)

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 18: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 19: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

19

New DevelopmentResidentialHousing

Construction of 10 or more dwelling units Examples include

Single family dwelling units Multi-family dwelling units Condominiums Apartments

New Development ampSignificant Redevelopment

Projects

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 20: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

20

New DevelopmentIndustrial and Commercial

Where the land area represented by the proposed map or permit is 100000 square feet or more

Examples include Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

New Development ampSignificant Redevelopment

Projects

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 21: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

21

New DevelopmentAutomotive Repair Shops

Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New

Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops

and Paint Shops 7533 - Automotive Exhaust System Repair

Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement

Shops 7537 - Automotive Transmission Repair

Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

New Development ampSignificant Redevelopment

Projects

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 22: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

22

New DevelopmentRestaurants

Where the project site is 5000 square feet or more Smaller restaurants are covered too but excepted from

treatment control and peak flow mgmt

SIC 5812 - Eating and Drinking Places

New Development ampSignificant Redevelopment

Projects

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 23: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

23

New DevelopmentHillside Development

Where impervious surfaces are createdhellip 5000 square feet or more and

Located on areas with known erosive soil conditions Where the natural slope is 25 or more

New Development ampSignificant Redevelopment

Projects

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 24: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

24

New DevelopmentDevelopment Near ESAs

Where 2500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation of RARE

(supporting plant or animal species designated as rare threatened or endangered) OR

Listed on the CWA Section 303(d) list Includes discharges to Areas of Special Biological

Significance or within the Western Riverside County Multi-Species Habitat Conservation Plan area or equivalent sensitive area

New Development ampSignificant Redevelopment

Projects

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 25: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

25

New DevelopmentParking Lots

Where 5000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes ldquositesrdquo and ldquofacilitiesrdquo

New Development ampSignificant Redevelopment

Projects

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 26: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

26

New DevelopmentStreets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles

New Development ampSignificant Redevelopment

Projects

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 27: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

27

New DevelopmentRetail Gasoline Outlets

Retail gasoline outlets in the SMR Watershed that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more

vehicles per day

New Development ampSignificant Redevelopment

Projects

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 28: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

28

Significant Redevelopment

Addition Creation or Replacement of 5000 square feet or more of impervious surface on an already developed site of a listed project category

Examples include (but of course are not limited to)hellip Impervious or compacted soil parking lots (SAR Watershed) Additional buildings and structures Extension of the footprint of a building

Excludeshellip Routine Maintenance

New Development ampSignificant Redevelopment

Projects

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 29: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

29

Significant Redevelopment

Where a Priority Project is a Redevelopment Project and replaces lt 50 of the impervious surfaces on an existing developed site

and The site was not previously subject to Priority Development

Project requirements then The WQMP design standards apply only to the addition or

replacement and not to the entire developed site Where a Priority Project is a Redevelopment Project and

replaces ge 50 of the impervious surfaces on an existing developed site

then The WQMP design standards apply to the entire development

The 50 Rule for Redevelopment Projects

New Development ampSignificant Redevelopment

Projects

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 30: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Priority Development Project SummaryNew Development and Redevelopment

Residential - Housing Industrial ndash Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets Roads Highways

Freeways Retail Gasoline Outlets Significant

Redevelopment

30

The descriptions ofPriority Development Projects

in this presentationinclude generalized summaries For project-specific definitions

consult the DAMP or WQMP

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 31: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 32: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

32

Other Development

Projects not meeting the definition of New Development or Significant Redevelopment This is a pretty small group of projects and is likely to be

limited to infill-type projects

Other DevelopmentProjects

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 33: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 34: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

34

First Things FirstWhat Is A WQMP

Water Quality Management Plan The WQMP is a project-specific plan of Best

Management Practices (BMPs) including site design source controls and treatment controls to address post-construction urban runoff quality and quantity to protect receiving waters

A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects

PreliminaryWater Quality Management Plan

During Entitlement

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 35: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

35

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

This is the domain of theWater Quality

Management PlanThe WQMP

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 36: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

This is the domain of theWater Quality

Management PlanThe WQMP

36

Project Lifecycle and WQMPsDEVELOPMENT

RAW

LAND

PROJECT PLANNING

AND DESIGN

PROJECT CONSTRUCTION

PROJECT OampM

REDEVELOPMENT

This is the domain of the Storm Water

Pollution Prevention Plan The SWPPP

Pollution Prevention Is Now Part Of Every Project Stage

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 37: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

37

PreliminaryProject-Specific WQMP

A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the

planning and entitlement process (tentative tract map parcel map or subdivision map) and

Will be subject to ministerial approvals for subsequent grading or building permits

Submit WQMP with project application

PreliminaryWater Quality Management Plan

During Entitlement

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 38: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

38

PreliminaryProject-Specific WQMP

Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought Key point ndash The Preliminary WQMP needs to be specific

enough to identify the land required for BMP implementation

A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit

PreliminaryWater Quality Management Plan

During Entitlement

Many cities have adoptedCity-specific requirements to guide the

Preliminary WQMP process

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 39: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 40: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

40

Standard ConditionsHelp Implement WQMPs

Assist in compliance with the statewide Construction General Permit and the Industrial General Permit

Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations

Requires that structural BMPS are installed in conformance with approved plans

Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval

Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit

Conditions of Approval

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 41: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 42: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

42

Conditions for ldquoOtherrdquoProjects (No WQMP)

In addition to the ldquoConditions of Approvalrdquo reviewed a moment agohellip

Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible

Other Projects may on a case-by-case basis be required to incorporate Treatment Control BMPs Key point recommended for projects discharging to 303(d)

listed water bodies Key point highly recommended for projects discharging to

waters with an adopted TMDL Requirements for ldquoOther Projectsrdquo will be included inhellip

Conditions of Approval or Grading or Building Permit Conditions

Condition of ApprovalAndor

Permit Conditions

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 43: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 44: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

44

FinalProject-Specific WQMP

Water Quality Management Plan The Final Project-Specific WQMPhellip

Is a planning level documenthellip Is not expected to contain final BMP design drawings and

detailshellip Is expected to identify and show the location of structural

BMPshellip Is expected to provide design parameters and final design

concepts of treatment BMPshellip Must be approved prior to issuance of building or grading

permits

FinalProject Specific

Water Quality Management Plan

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 45: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

45

FinalProject-Specific WQMP

The Final Project-Specific WQMP will containhellip Site Design BMPs Source Control BMPs Treatment Control BMPs BMP maintenance descriptions BMP funding description BMP operation responsibilities

Must conform to the Guidance

FinalProject Specific

Water Quality Management Plan

Many cities supplement the Guidance with City-specific

requirements

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 46: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 47: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

47

Mandatory Notes forConstruction Plans

DAMP Requirements Prior to GradingBuilding Permits Requires a number of standard notes on construction plans as

part of the grading and building permit process These notes are detailed in the DAMP and wonrsquot be covered

here

Building orGrading Permits

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 48: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

48

Grading and Building PermitsAre Issued Afterhellip

For Redevelopment and New Development Projectshellip Final Project-Specific WQMP is approved Plan Check verifies thathellip

BMPs from WQMP are incorporated into plans Standard Notes have been placed on plans Conditions of Approval have been met

For Other Projectshellip Construction plans incorporate site design and source control

BMPs Standard Notes have been placed on plans Condition of Approval have been met

Building orGrading Permits

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 49: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 50: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

50

Tracking Inspection and Enforcement

These subjects will be covered in other training sessions

TrackingInspection

And Enforcement

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 51: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Development ProjectReview Approval Permitting

And Inspection Process

New Development ampSignificant Redevelopment

Projects

Other DevelopmentProjects

PreliminaryWater Quality Management Plan

During Entitlement

FinalProject Specific

Water Quality Management Plan

Condition of ApprovalAndor

Permit Conditions

Building orGrading Permits

TrackingInspection

And Enforcement

Conditions of Approval

PermitCloseout

Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 52: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

52

Permit Closeout Certificates ofUse and Occupancy

Applicants will be required to demonstrate that All structural BMPs have been constructed and installed in

conformance with approved plans and specifications A mechanism or agreement acceptable to the Co-Permittee has

been executed for the long-term funding and implementation operation maintenance repair andor replacement of BMPs

The applicant is prepared to implement all non-structural BMPs

An adequate number of copies of the project-specific WQMP if applicable are available onsite

Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board andor a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number

PermitCloseout

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 53: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

53

Summary of Requirements

Post-construction water pollution control a requirement for many years is now being more rigorously enforced A WQMP is required for all but the smallest of projects Final Project-Specific WQMP is required before issuance of

gradingbuilding permits Preliminary Project-Specific WQMP may be required during

project entitlement phase

Changes to the post-construction water pollution control program are forthcominghellip Until the changes are in place the program that has been in

place for the last few years must continue to be implemented

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 54: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plan Fundamentals

April 2011 Edition

Minor Changes April 2012

Updated June 2013

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 55: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

55

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 56: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

56

DeterminingProject Category

A correct Project Category determination is essential The Project Category is a key factor inhellip

Deciding whether a WQMP is required Identifying the pollutants likely to be associated with the

project

The correct Project Category is easy to determine for most projects

Projects that fall into the ldquogray areasrdquo of the category definitions will require careful consideration

An incorrect determination of Project Category could create significant future headaches such ashellip Permit enforcement actions against the agency or owner Requirements to retrofit a complete or near-complete project

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 57: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

57

DeterminingProject Category

Use the Checklist included in DAMP Figure 6-2b ndash SMR

Watershed Provides a place to

document category determination

WQMP Guidance Document Section 3 provides a narrative description of each project category

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 58: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

58

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The top area is for

basic project information

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 59: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

59

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The middle area

describes Priority Project Categories

Check ldquoYesrdquo or ldquoNordquo for the subject project

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 60: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

60

Letrsquos Walk ThruThe Checklist

Sample Checklist - DAMP Figure 6-2b The bottom area tells

you whether a WQMP is required

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 61: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

61

DeterminingProject Category - Summary

The Checklist is easy to use

If a project has attributes of one or more of the Priority Development Project Categories then a WQMP is required WQMP applies to the entire

project for new development See the ldquo50 Rulerdquo to

determine where the WQMP applies for significant redevelopment

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 62: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

62

DeterminingProject Pollutants

Expected Project Pollutants depend on the Project Category

WQMP Exhibit B identifies expected pollutants for each project category

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 63: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

63

DeterminingProject Pollutants

Exhibit B is easy to use Exhibit B is easy to use

P=A Potential Pollutant N=Not a Potential Pollutant

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 64: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

64

DeterminingProject Pollutants ndash Example

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 65: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

65

DeterminingProject Pollutants - Example

Project Pollutants SedimentTurbidity - A potential pollutant (Note 1) Nutrients ndash A potential pollutant (Note 1) Organic Compounds ndash A potential pollutant (Note 5) Trash and Debris ndash A potential pollutant Oxygen Demanding Substances ndash A potential pollutant (Note 1) Bacteria and Viruses ndash A potential pollutant (Note 3) Oil and Grease ndash A potential pollutant Pesticides ndash A potential pollutant (Note 1) Metals ndash A potential pollutant

Note 1 ndash A potential pollutant if landscaping or open area exists on the project site

Note 3 ndash A potential pollutant if land use involves animal waste Note 5 ndash Specifically solvents

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 66: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

66

DeterminingProject Pollutants

Project Pollutants Stick with Exhibit B unless you have a very good reason to

deviate If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 67: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

67

Identifying theProject Watershed and Sub-Watershed

Identify the project watershedhellip Santa Margarita River Watershed

On-line tool available at httprcfloodorgNPDES

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 68: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

68

Identifying theProject Watershed and Sub-Watershed

Identify the sub-watershedhellip The Basin Plan has a nice list

of sub-watersheds

Remember to consider adoptedBasin Plan Amendments

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 69: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

69

Identifying theProject Watershed

Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters Impairments and Pollutants of Concern

Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek ndash Impaired due to Chlorpyrifos Copper Iron

Manganese Nitrogen Phosphorus and Toxicity Santa Margarita River (Upper) ndash Impaired due to Phosphorus

and Toxicity Santa Margarita River (Lower) ndash Impaired due to Enterococcus

Fecal Coliform Phosphorus and Total Nitrogen Example Ramifications

All three waters are in the Santa Margarita River watershed Discharges to all three waters require extra attention to

Phosphorus due to the impairments Discharges to Murrieta Creek require extra attention to

Chlorpyrifos and Metals due to impairments

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 70: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

70

IdentifyingProject Receiving Waters

Project watershed and sub-watershed provide for receiving water identification

Maps from Flood Control USGS and others are useful in finding the receiving waters

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 71: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

71

IdentifyingProject Receiving Waters

Proximate Receiving Waters ndash Generally receiving waters closest to your project A precise definition has not been established When TMDLs come into play they are likely to push the

ldquoProximate Thresholdrdquo further downstream

Downstream Receiving Waters ndash Include all receiving waters that could receive drainage from the project site

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 72: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

IdentifyingReceiving Water Impairments

72

Impairments of receiving waters can be obtained from several sourceshellip Impairment maps

httprcfloodorgNPDES (Verified April 2011)

California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL httpwaterboardscagovwater_issuesprogramstmdl303

d_lists2006_epashtml (Verified April 2011)

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 73: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

73

IdentifyingReceiving Water Impairments

Santa Margarita River Watershed MaphttprcfloodorgdownloadsNPDESDocumentsDevelopersPoliciesSMR_Watershed_Impairmentspdf

Verified June 2013

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 74: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

74

IdentifyingReceiving Water Impairments

303(d) list water quality limited (impaired) segments http

wwwwaterboardscagovwater_issuesprogramstmdlintegrated2010shtml (Verified June 2013)

Download the list or use the on-line tool Make sure you

are viewing the combined list (Categories 4a 4b and 5)

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 75: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

75

IdentifyingReceiving Water Impairments

Re

cei

vin

g W

ate

r N

ame

s

Po

lluta

nt

Str

es

so

rs

TM

DL

Sta

tus

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 76: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

76

IdentifyingReceiving Water Impairments

Adopted Total Maximum Daily Loads (TMDLs) are important to consider httpwwwwaterboardscagovsandiegowater_issues

programstmdlsindexshtml TMDLs include requirements that address specific

pollutant stressors in receiving waters

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 77: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

77

IdentifyingReceiving Water Impairments

Example TMDL for Penasquitos Lagoon httpwwwwaterboardscagovsandiegoboard_decisions

adopted_orders2012R9-2012-0033_signedpdf

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 78: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

78

IdentifyingReceiving Water Impairments

An adopted TMDL changes the Basin Plan For sediment in Penasquitos Lagoon the Basin Planrsquos

narrative objectivehellip

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 79: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

79

IdentifyingReceiving Water Impairments

Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources and Load Allocations for non-point sources

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 80: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

80

IdentifyingReceiving Water Impairments

The TMDL identifies responsible parties

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 81: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

81

IdentifyingReceiving Water Impairments

The TMDL identifies things the responsible parties must do to comply with the TMDL

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 82: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

82

IdentifyingPollutants of Concern

Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 83: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

83

IdentifyingPollutants of Concern

ProjectPollutants

ReceivingWater

PollutantStressors

PO

C

Addressing Pollutants Associated with Development

Address these pollutants using BMPs

Address these pollutants using BMPS with a High or Medium effectiveness

More on th

is later

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 84: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

84

Post ConstructionBest Management Practices

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 85: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

85

Post Construction ControlsSite Design BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 86: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

86

Post Construction ControlsSite Design BMPs

Reduce runoff Increase Infiltration Reduce the pollutant transport mechanism Minimize difference between pre and post development

runoff Reduce the size of structural controls (filtering devices)

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 87: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

87

Post Construction ControlsSite Design BMPs

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 88: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

88

Post Construction ControlsSite Design BMPs

Strategy ldquoDo what you can where you canrdquo (Geoff Brosseau BASMAA)

Integrate BMPs throughout the site Every surface presents an opportunity

Landscaping Hardscaping

Use drainage as an organizing element

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 89: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

89

Post Construction ControlsSource Control BMPs

Urban Runoff

Controls

Site Design BMPs

Treatment ControlBMPs

Source Control BMPs

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 90: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

90

Post Construction ControlsSource Control BMPs

Reduce potential for rainfall runoff and pollutants to contact each other

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

>

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 91: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

91

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 92: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

92

Post Construction ControlsSource Control BMPs Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Source

Control

BMPs

Source

Control

BMPsTreatment

Control

BMPs

Treatment

Control

BMPs

SiteDesignBMPs

SiteDesignBMPs

Urban

Runoff

Controls

Urban

Runoff

Controls

Strategy Protect pollutant sources from contact withhellip

Rainfall Runoff

Integrate pollution prevention behaviors into daily routineshellip Educate kids tenants owners employees Mandate thorough activity restrictions and prohibitions

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 93: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

93

Post Construction ControlsTreatment Control BMPs

Urban Runoff

Controls

Site

Design

BMPs

Treatment

Control

BMPs

Source

Control

BMPs

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 94: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

94

Post Construction ControlsTreatment Control BMPs

Engineered systems designed and constructed to treat the adverse impacts of urban runoff

BMPs that remove pollutants byhellip Filtration Media absorption Other physical biological or chemical processes

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 95: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

95

Post Construction ControlsTreatment Control BMPs

Figure 24 - Example Filtration Treatment Control BMP

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 96: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

96

Post Construction ControlsTreatment Control BMPs

Select treatment controls based on Project Pollutants When Project Pollutants include Pollutant Stressors in

impaired Receiving Waters Treatment Control BMPs of Medium or High effectiveness must be used

Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 97: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

97

Post Construction ControlsTreatment Control BMPs

H=High M=Medium

L=Low U=Unknown

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 98: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

98

Post Construction ControlsTreatment Control BMPs

Example 1 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients

Detention Infiltration Wet Ponds or Wetlands and Filtration System BMPs will meet the treatment goals

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 99: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

99

Post Construction ControlsTreatment Control BMPs

Example 2 ndash Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens

Infiltration BMPs will meet the treatment goals

Filtration BMP will meet the treatment goals

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 100: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

100

Post Construction ControlsTreatment Control BMPs

Example 3 ndash Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease

Filtration BMP will meet the treatment goals

Biofilter BMP + Infiltration BMP will meet the treatment goals

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 101: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

101

Post Construction ControlsTreatment Control BMPs

Strategy Stick with the BMPs recommended in Table 3 for various

pollutants If you deviate document your reasons in the project filehellipyou

may be called on later to explain the change Pay particular attention to the ldquoNotesrdquo at the bottom of the

table BMP Treatment Trains (two or more BMPs in series) can

provide for a wide range of pollutant removal

Latest Information on BMPs Caltrans Treatment BMP Technology Report ndash April 2008

An excellent source of well-researched information on BMP performance

See Report CTSW-RT-08-1670202

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 102: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Summary of BMPDeployment Strategy

2

3

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 103: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

103

Todayrsquos Agenda

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 104: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans - Future

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 105: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

105

Todayrsquos Agenda

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 106: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Riverside County- SMR WatershedWater Quality Management Plans (WQMPs)

106

Changes in the WQMP program and requirements are coming in the foreseeable future

Whatrsquos driving theses changes The most recent municipal NPDES storm water permits Riverside County ndash Santa Margarita River Watershed Permit

Order No R9-2010-0016 NPDES No CAS0108766 Issued November 10 2010

Does this training session cover the details No

The details are still being worked out This training session gives a look ahead at what to expect

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 107: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Priority Development Projects

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 108: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

108

Todayrsquos Agenda

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 109: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Priority Development Project TransitionNew Development and Redevelopment Current PDPs

Residential - Housing

Industrial ndash Commercial

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

109

Future PDPs New Development (New

combines categories)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 110: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

110

Priority Development ProjectNew Development

Where 10000 square feet or more of impervious surfaces is created collectively over the entire site Development projects within the planning and building

authority of the Co-Permittees

Examples include Commercial Industrial Residential

Single Family Multi-Family

Mixed Use Public or Private

Combines the old Residential Housing Commercial and Industrial PDPs

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 111: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

111

Priority Development Project Automotive Repair Shops

Where one of more of the following SIC codes applies 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top Body Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops NEC

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 112: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

112

Priority Development Project Restaurants

Where the area of land development is 5000 square feet or more Smaller restaurants are also included but excepted from

structural treatment control BMP and numeric sizing requirement and hydromodification

SIC 5812 - Eating and Drinking Places

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 113: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

113

Priority Development Project Hillside Development

Where development creates 5000 square feet or more of impervious surface locatedhellip On areas with known erosive soil conditions Where grading will occur where the natural slope is 25 or

more

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 114: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

114

Priority Development Project Development Near ESAs

Where 2500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10 or more of its naturally occurring condition andhellip Is within or adjacent to (within 200rsquo) or discharges directly into

watershellip With a Basin Plan Beneficial Use Designation ofhellip

RARE

Within an area in thehellip Riverside County Multi-Species Habitat Conservation Plan Natural Communities Conservation Program Area of Special Biological Significance (ASBS)

Listed on the CWA Section 303(d) list Or equivalent environmentally sensitive area

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 115: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

115

Priority Development Project Parking Lots

Where a parking lot of 5000 square feet or more is created and potentially exposed to runoff ldquoParking Lotrdquo is defined as a land area or facility for the

temporary parking or storage of motor vehicles Added specific reference to ldquoImpervious Parking Lotsrdquo

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 116: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

116

Priority Development Project Streets Roads Highways Freeways

Where 5000 square feet or more of paved surface is created for the transportation of automobiles trucks motorcycles and other vehicles Exempts public works projects from developing a project-

specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance

Unpaved roads not covered here Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 117: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

117

Priority Development Project Retail Gasoline Outlets

Retail gasoline outlets that arehellip 5000 square feet or more in area OR Have a projected Average Daily Traffic

(ADT) of 100 or more vehicles per day

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 118: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

118

Priority Development ProjectSignificant Redevelopment

On an already developed site where 5000 square feet or more of impervious surface ishellip Created added or replaced and the existing site falls into one

of the Priority Development Project categories (SMR)

Examples includehellip Additional buildings and structures Extension of a building footprint

Excludeshellip Routine Maintenance

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 119: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

119

Priority Development ProjectProjects ge 1 Acre

All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land This is a new Priority Development Project category in the

Santa Margarita River Watershed

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 120: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Summary of FuturePriority Development Project Categories

120

The descriptions of futurePriority Development Project categories in this presentation

include generalized summariesFor project-specific definitions

consult program guidance documents when they become available

Until then refer to the respectiveMunicipal NPDES Permit

New Development (New)

Automotive Repair Shops

Restaurants

Hillside Development

Development Near ESAs

Parking Lots

Streets Roads Highways Freeways

Retail Gasoline Outlets

Significant Redevelopment

Projects ge 1 ac (New)

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 121: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Best Management Practices

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 122: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

122

Todayrsquos Agenda

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 123: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

A More Specific Approach toBest Management Practices

Tier 1

bull On-Site Retention (LID) Examplesbull Capture and Infiltrate Evaporate or Transpirebull Capture and Utilize (Harvest)

Tier 2

bull Biotreatment (LID) Examplesbull Biofiltrationbull Vegetated Swales and Buffer Strips

Tier 3

bull Conventional Treatment Controls Examplesbull Extended Detention Basinsbull Proprietary Treatment Systems (ldquoBMPs in a

Boxrdquo)

123

LID = Low Impact Development

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 124: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

A More Specific Approach toBest Management Practices

124

Tier 1

bull Required for All Priority Development Projectsbull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 2

bull Required for Volumes not Addressed by Tier 1bull Except where infeasiblebull Specific feasibility criteria are being developed

Tier 3

bull Required for Volumes not Addressed by Tier 1 or 2bull Must also Participate in a LID Waiver Program

(SMR)bull If Infeasible Participate in an In-Lieu Program

(SAR)Feasibility criteria and other details are under

development

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 125: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

125

Tier 1

bull On-Site Retention (LID)bull Pervious Pavement (Pavers)

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 126: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

126

Tier 1

bull On-Site Retention (LID)bull Infiltration Trench

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 127: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

127

Tier 1

bull On-Site Retention (LID)bull Infiltration Basin

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 128: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

128

Tier 1

bull On-Site Retention (LID)bull Rainwater Capture and Reuse

RainSpacetrade Rainwater Storage Chamber

diagram used with permission of Brad Peery

RainTechRainwater Control Systems wwwRainTechnologiescom

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 129: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

129

Tier 2

bull Biotreatment (LID)bull Biofiltration (With Underdrains)

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 130: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

130

Tier 2

bull Biotreatment (LID)bull Vegetated Swale

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 131: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

131

Tier 3

bull Conventional Treatment Controlsbull Austin-Type Sand Filter

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 132: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

132

Tier 3

bull Conventional Treatment Controlsbull Extended Detention Basin

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 133: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

133

Tier 3

bull Conventional Treatment Controlsbull Insert Devices

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 134: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

A More Specific Approach toBest Management Practices

134

Source Control BMPs continue to be required as applicable in conjunction with Tier 1 Tier 2 and Tier 3 BMPs

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 135: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

A More Specific Approach toBest Management Practices

135

New BMP-related requirements and programs BMP Program Implementation

Similar requirements for submittal of WQMPs Added emphasis on recording easements and covenants to

help with the WQMP handoff to subsequent owners BMP Construction Verification

Added requirements for Co-Permittees to verify that BMPs are designed constructed and functional per the WQMP

BMP Operation and Maintenance Added tracking location and type of installed BMPs Added requirements for BMP maintenance be verified via

inspections as frequent as annually Enforcement at Development Sites

Specific requirement to enforce storm water ordinances at development sites

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 136: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Hydromodification

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 137: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

137

Todayrsquos Agenda

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 138: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Hydromodification

138

Distinct definitions for each watershedhellip Hydromodification-SMR The change in the natural watershed

hydrologic processes and runoff characteristics (ie interception infiltration overland flow interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport In addition alteration of stream and river channels such as stream channelization concrete lining installation of dams and water impoundments and excessive streambank and shoreline erosion are also considered hydromodification due to their disruption of natural watershed hydrologic processes

Summary Hydromodification is triggered by changes in hydrologic processes associated with traditional development

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 139: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Hydromodification

139

Hydromodification Management Goal ndash Geomorphic stability in channels

Santa Margarita River Watershed Presumption ndash Priority Development Projects will need to

address hydromodification Procedures to be developed

Requires detailed analysis ldquoOff rampsrdquo may ease compliance burden for some projects

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 140: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Hydromodification

140

Undermined Footings Lead to Settlement and Bridge Failure

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 141: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Margarita Watershedof

Riverside County

Water Quality Management Plans ndash Future

Schedule of Changes

April 2011 Edition

Minor Changes April 2012

Updated June 2013

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 142: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Welcome and Training Process Water Quality Management Plans ndash Today

Overview Fundamentals

Break Water Quality Management Plans ndash Future

Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

142

Todayrsquos Agenda

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 143: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Schedule for Changes to theDevelopment and Redevelopment Program

143

When will the changes take place Changes will be phased in over time Santa Margarita River Watershed

Template to RWQCB by June 30 2012 Implementation date TBD after July 30 2012

In the meantimehellip Continue to implement the strategies and

programs that have been in place for many years now

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 144: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Questions

144

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg
Page 145: Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated.

Water Quality Management Plansfor the

Santa Ana and Santa Margarita Watershedsof

Riverside County

Presented byJeffrey D Endicott PE BCEE CPESC QSD

AEI-CASC Consulting1470 E Cooley Drive Colton CA 92324

Ph 9097830101 Cell 9098357537jendicottaei-casccom

April 2011 Edition

Minor Changes April 2012

Updated June 2013

  • Water Quality Management Plans for the Santa Margarita Watershe
  • Why are we here
  • Training Session Objectives
  • Todayrsquos Agenda
  • Prerequisites for Successful Course Completion
  • Introductions
  • Training Process
  • Water Quality Management Plans for the Margarita Watershed of R
  • Todayrsquos Agenda (2)
  • Riverside County Drainage Area Management Plan (DAMP)
  • Riverside County Drainage Area Management Plan (DAMP) (2)
  • Riverside County Municipal NPDES Permits Santa Margarita River
  • Riverside County Drainage Area Management Plan (DAMP) (3)
  • Riverside County Drainage Area Management Plan (DAMP) (4)
  • DAMP Section 6 Development Planning
  • Slide 16
  • Three Project Categories
  • Slide 18
  • New Development ResidentialHousing
  • New Development Industrial and Commercial
  • New Development Automotive Repair Shops
  • New Development Restaurants
  • New Development Hillside Development
  • New Development Development Near ESAs
  • New Development Parking Lots
  • New Development Streets Roads Highways Freeways
  • New Development Retail Gasoline Outlets
  • Significant Redevelopment
  • Significant Redevelopment (2)
  • Priority Development Project Summary New Development and Redeve
  • Slide 31
  • Other Development
  • Slide 33
  • First Things First What Is A WQMP
  • Project Lifecycle and WQMPs
  • Project Lifecycle and WQMPs (2)
  • Preliminary Project-Specific WQMP
  • Preliminary Project-Specific WQMP (2)
  • Slide 39
  • Standard Conditions Help Implement WQMPs
  • Slide 41
  • Conditions for ldquoOtherrdquo Projects (No WQMP)
  • Slide 43
  • Final Project-Specific WQMP
  • Final Project-Specific WQMP (2)
  • Slide 46
  • Mandatory Notes for Construction Plans
  • Grading and Building Permits Are Issued Afterhellip
  • Slide 49
  • Tracking Inspection and Enforcement
  • Slide 51
  • Permit Closeout Certificates of Use and Occupancy
  • Summary of Requirements
  • Water Quality Management Plans for the Santa Margarita Watershe (2)
  • Todayrsquos Agenda (3)
  • Determining Project Category
  • Determining Project Category
  • Letrsquos Walk Thru The Checklist
  • Letrsquos Walk Thru The Checklist (2)
  • Letrsquos Walk Thru The Checklist (3)
  • Determining Project Category - Summary
  • Determining Project Pollutants
  • Determining Project Pollutants (2)
  • Determining Project Pollutants ndash Example
  • Determining Project Pollutants - Example
  • Determining Project Pollutants (3)
  • Identifying the Project Watershed and Sub-Watershed
  • Identifying the Project Watershed and Sub-Watershed (2)
  • Identifying the Project Watershed
  • Identifying Project Receiving Waters
  • Identifying Project Receiving Waters (2)
  • Identifying Receiving Water Impairments
  • Identifying Receiving Water Impairments (2)
  • Identifying Receiving Water Impairments (3)
  • Identifying Receiving Water Impairments (4)
  • Identifying Receiving Water Impairments (5)
  • Identifying Receiving Water Impairments (6)
  • Identifying Receiving Water Impairments (7)
  • Identifying Receiving Water Impairments (8)
  • Identifying Receiving Water Impairments (9)
  • Identifying Receiving Water Impairments (10)
  • Identifying Pollutants of Concern
  • Identifying Pollutants of Concern (2)
  • Post Construction Best Management Practices
  • Post Construction Controls Site Design BMPs
  • Post Construction Controls Site Design BMPs (2)
  • Post Construction Controls Site Design BMPs (3)
  • Post Construction Controls Site Design BMPs (4)
  • Post Construction Controls Source Control BMPs
  • Post Construction Controls Source Control BMPs (2)
  • Post Construction Controls Source Control BMPs (3)
  • Post Construction Controls Source Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs
  • Post Construction Controls Treatment Control BMPs (2)
  • Post Construction Controls Treatment Control BMPs (3)
  • Post Construction Controls Treatment Control BMPs (4)
  • Post Construction Controls Treatment Control BMPs (5)
  • Post Construction Controls Treatment Control BMPs (6)
  • Post Construction Controls Treatment Control BMPs (7)
  • Post Construction Controls Treatment Control BMPs (8)
  • Post Construction Controls Treatment Control BMPs (9)
  • Summary of BMP Deployment Strategy
  • Todayrsquos Agenda (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (3)
  • Todayrsquos Agenda (5)
  • Riverside County- SMR Watershed Water Quality Management Plans
  • Water Quality Management Plans for the Santa Margarita Watershe (4)
  • Todayrsquos Agenda (6)
  • Priority Development Project Transition New Development and Red
  • Priority Development Project New Development
  • Priority Development Project Automotive Repair Shops
  • Priority Development Project Restaurants
  • Priority Development Project Hillside Development
  • Priority Development Project Development Near ESAs
  • Priority Development Project Parking Lots
  • Priority Development Project Streets Roads Highways Freeway
  • Priority Development Project Retail Gasoline Outlets
  • Priority Development Project Significant Redevelopment
  • Priority Development Project Projects ge 1 Acre
  • Summary of Future Priority Development Project Categories
  • Water Quality Management Plans for the Santa Margarita Watershe (5)
  • Todayrsquos Agenda (7)
  • A More Specific Approach to Best Management Practices
  • A More Specific Approach to Best Management Practices (2)
  • Slide 125
  • Slide 126
  • Slide 127
  • Slide 128
  • Slide 129
  • Slide 130
  • Slide 131
  • Slide 132
  • Slide 133
  • A More Specific Approach to Best Management Practices (3)
  • A More Specific Approach to Best Management Practices (4)
  • Water Quality Management Plans for the Santa Margarita Watershe (6)
  • Todayrsquos Agenda (8)
  • Hydromodification
  • Hydromodification (2)
  • Hydromodification (3)
  • Water Quality Management Plans for the Santa Margarita Watershe (7)
  • Todayrsquos Agenda (9)
  • Schedule for Changes to the Development and Redevelopment Progr
  • Questions
  • Water Quality Management Plans for the Santa Ana and Santa Marg