Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update...

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Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014

Transcript of Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update...

Page 1: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Wet Weather Consent Decree Implementation Update

Planning Committee

September 10, 2014

Page 2: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Agenda

• Background

• Regional Private Sewer Lateral Ordinance

• Regional Technical Support Program

• Related Discharge Permits

•Next Steps

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Page 3: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Background Consent Decree Status

• Lodged with federal District court July 28, 2014

• Public Comment Period closed September 2, 2014 (no comments received)

• Consent Decree will become effective immediately upon being entered by the court

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Page 4: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Background Key EBMUD Requirements

• Construct and operate Urban Runoff Diversion Project by 2017

• Implement capacity improvement along North Interceptor by 2020

• Conduct annual compliance monitoring and modeling

• Continue Regional Private Sewer Lateral (PSL) Ordinance

Develop and implement a Regional Technical Support Program (RTSP)

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Page 5: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Regional PSL Ordinance Proposed Amendments

• Consent Decree adds new requirement for Public Entities to maintain their sewer laterals (no enforcement requirements for EBMUD)

• Allow Albany and Alameda to join program

– Proposed transition date January 1, 2015

– City of Berkeley will retain its own program

• Clarify ordinance language developed through initial years of implementation

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Page 6: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Regional Technical Support Program (RTSP) - Overview

• Replaces $2M/yr PSL Incentive requirement under Stipulated Order

• Requires $2M/yr to identify and characterize sources of inflow and rapid infiltration

• Cumulative spend requirement

– i.e. $2M by Year 1, $4M by year 2, etc.

– Provides ability to front-load

• Includes staff time for analysis and investigation

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Page 7: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

RTSP Overview, continued

• EBMUD identifies sources of inflow and rapid infiltration (I/I)

• EBMUD defines which sources are “high priority”

• Satellite communities pursue high priority sources

– Eliminate public sources within 2 years

– Enforce removal of private sources

• Satellite communities consider non-high priority sources in CIP prioritization

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Page 8: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

RTSP Program Significance

• Key element in WWF discharge reduction

– Estimated 15% of excess peak flow originates from inflow (direct sources)

– Model assumes ability to find and remove 75% of inflow

• Critical to meet Consent Decree

– Year 8 “check-in”

– Year 16 “check-in”

– WWF discharge elimination deadlines (2027, 2033, 2035)

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Page 9: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

RTSP Implementation Approach

• Consent Decree requires an RTSP Plan describing first five years of work

– Draft to satellite communities early 2015

– Final to EPA for review/comment/approval Spring 2015

• Initial field work will occur concurrent with RTSP Plan development

– 2014-2015 wet season flow monitoring

– 2015 dry season smoke testing, CCTV, etc.

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Page 10: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

RTSP Work Plan Development

• Define approach to data analysis and field work

• Maintain flexibility to adapt as we learn

• Learn from others

– I/I investigative programs across the country

– Panel of national experts in sewer system management to support RTSP Plan development

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Page 11: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

RTSP Tools and Techniques

• Analysis of data to identify areas of high potential for inflow, for example: – Flow data from EBMUD and satellite communities

– Proximity to creeks and storm drains

– Sewer work records

• Field work to locate and characterize sources – Flow monitoring

– Smoke testing

– CCTV inspection

– Visual inspection 11

Page 12: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Related NPDES Discharge Permits

• Wet Weather Facilities – Scheduled adoption date November 12, 2014

– Reviewing with RWQCB staff

– No significant issues

• Main Wastewater Treatment Plant – Application due October 2014

– Proposed adoption March 2015

– Key issue: Ensure blending requirements dovetail with WWF permit and Consent Decree

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Page 13: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Next Steps

• Bring proposed Regional PSL Ordinance amendments for Board consideration

• Work with RWQCB on related NPDES permits • Develop initial deliverables for stakeholder

review in early 2015 – RTSP Plan – Flow Model Calibration Plan – PSL Outreach Plan

• Implement initial stages of RTSP data analysis and field work

• Keep Board apprised of key activities 13

Page 14: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Wastewater Service Area and Major Facilities

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Page 15: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Semi-Annual Regulatory Compliance Update

Planning Committee

September 10, 2014

Page 16: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Agenda

• Enforcement Actions

• Permit for Potable Water Discharges

• Cal OSHA Inspections

• Safety Culture Perception Survey

• Upcoming Activities

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Page 17: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Enforcement Review

• Strategic Plan KPI = Zero NPDES and Waste Discharge Requirement (WDR) permit Notices of Violation (NOVs) received

– Four NOVs for discharges to water or land

– Two NOVs related to air quality compliance

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Page 18: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Lafayette WTP NOVs

•May 8, 2012 discharge caused by failure of filter control valve

– Modified controls

•March 27, 2013 discharge to sump going to Lafayette Creek

– Added signage at drains “No Dumping – Drains to Creek”

• $6000 settlement agreement

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Page 19: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Upcountry NOVs

• Failure to collect data on pH and temperature at Camanche North Shore Water Treatment Plant in June 2014

– Contesting due to lack of discharge

•Missed sample during 2014 Q2 at Clay Station Raw Water Pumping Plant

– Enhanced communication between staff

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Page 20: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

MWWTP NOV Settlement Agreement

NOV for unabated digester gas release on 11/9/13

• 15 minute release through pressure relief valves

• Plugged drain line in flare

• Settlement agreement with $4000 fine

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Page 21: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

MWWTP Air Permit NOV

Digester gas release on 11/22/2013

• Failure of flare igniter

• 830 cu. ft. vented through pressure relief valves

• Requested breakdown relief

•NOV issued 7/28/14

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Page 22: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

General Potable Water Discharge Permit

• Agreement with SF RWQCB & ABAG to fund person to develop permit

• $298,833 estimated total cost

• Agreement with 7 other agencies to share costs

• District share is $50K

Page 23: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

SF Regional Permit Progress

• 11/20/13 - admin draft issued for review with water agencies

• 5/8/14 - tentative order issued for public comment

• 5/19/14 - public workshop held

• 7/1/14 – permit postponed pending statewide permit

Page 24: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Statewide Permit

• 6/6/14 – SWRCB issues draft permit

• 8/5/14 – public hearing

• 9/23/14 – permit scheduled for adoption at SWRCB hearing

Page 25: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Cal OSHA Inspections

• 6 inspections initiated based on employee complaint(s)

• 13 facilities examined and scrutinized

• 2 citations

– Fixed ladder exceeds 30 feet without ladder safety system or landing platforms

– Mid-rail is below the halfway point of the guardrail

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Page 26: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Safety Perception Survey

• 621 of 809 OMD employees surveyed

• Scored in 62nd percentile

• Compared to 750 Companies

•Over 1.5 million responders

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Page 27: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Survey Action Plans

• Communicating results

• Engage employees

• Identify top issues to address

•Develop specific action-oriented countermeasures

• Retake survey in 2 years

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Page 28: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Upcoming Activities

•Work with SFRWQCB, ABAG, and Bay Area water utilities to finalize a permit for potable water discharges

•Work with Local Safety Committees to develop action plans based on safety perception survey

• Review fall protection compliance at water distribution reservoirs

Page 29: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Questions?

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Page 30: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer
Page 31: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Orinda Water Treatment Plant

Washwater Tank Rehabilitation

Planning Committee Meeting

Orinda Water Treatment Plant

Washwater Tank Rehabilitation

Planning Committee Meeting

September 10, 2014

Page 32: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Orinda WTP Washwater Tank Rehabilitation

• Background

• Site Constraints

• Community Outreach

• Design Mitigations

• Next Steps

Page 33: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Background Orinda WTP circa1938: minimal site constraints

Orinda WTPElevation  = 375’

Washwater TankElevation=410’

Source: Google Earth

• 200,000 gallons• At grade• 40 ft. diameter • 22 ft. tall• Bar‐stressed concrete 

Page 34: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

BackgroundOrinda WTP and washwater tank today

Orinda WTP

Source: Google Earth

Washwater Tank

Page 35: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Site constraints Poor access, trees, no staging area

Tank

Property Line

Slope

Page 36: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Community Outreach

• Approach:

• Notified the community early

• Explained clearly the need for the project

• Provided visual exhibits

• Held community meetings on-site

• Mitigated with design

Page 37: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

50’dia

Proposed Tank:

Existing Tank:

Community Outreach

New tank alternative

New tankalternative

Aerial “footprint” vs. Ground-level visualExisting

Page 38: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Community OutreachOn-site meetings clarified neighbor concerns

Mailbox access

Tree removal

Architecture preservation

Curb appeal

Page 39: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Designed Mitigations Adjust retrofit method to site constraints

Manual wrapping minimizes equipment size and tree removal.

Sturdy base anchorages minimizes impact on tank architectural features.

Page 40: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

New fence is set back for a “green zone”

Security fence

Low maintenance plantings for screening

Restore cobbles

Add staging area off-site

Minimize tree removal

Retrofit existing tank

Design Mitigated Site planning neighbor concerns

Page 41: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Next Steps

• Maintain communications with neighbors

• Schedule:

– Open Bids Sept 17, 2014

– Recommend Award Oct 14, 2014

– Construction Nov 2014 – Mar 2015

Page 42: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Questions?

Page 43: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Drought Communications with Billpayers

and with Non-billpayers EBMUD Planning Committee

September 2014

Page 44: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

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More than a third of EBMUD customers do not get a bill

387,000 accounts

Page 45: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Non-billpaying residents are ethnically diverse

Page 46: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Non-billpaying residents are younger

Page 47: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Print bill payers get information and news regularly from EBMUD

Direct mail to print bill payers:

• Top of bill message

• Prior-year water use

• Back of bill tips

• Customer Pipeline

• Supplemental inserts

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Page 48: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Electronic billpayers get links to EBMUD news and information

E-bill with web links:

– Top of bill message

– Prior-year water use

– Back of bill tips

– Customer Pipeline

– Bill FAQs

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Page 49: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Non-billpayers get most EBMUD news through other sources

Direct mail

• Annual Water Quality Report postcard

Other communication

• Earned media

• Ebmud.com

• Outdoor ads

• Community events

• Presentations 7

Page 50: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Many more non-billpayers say they can’t rate EBMUD

Q10. Thinking specifically about the East Bay Municipal Utility District, using a scale of excellent, good, only fair, or poor, please rate the overall job East Bay Municipal Utility District is doing

Page 51: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

92%

79%

90%

83%

80%

68%

79%

71%

76%

66%

75%

67%

71%

57%

Bill Payer

Non-Payer

Bill Payer

Non-Payer

Bill Payer

Non-Payer

Bill Payer

Non-Payer

Bill Payer

Non-Payer

Bill Payer

Non-Payer

Bill Payer

Non-Payer

Total Agree

Non billpayers give EBMUD favorable--but lower--ratings

Provides safe tap water

Provides good tasting tap water

Is an agency I can trust

Cares about the environment

Is a reliable source of information

Operates in communities’ best interests

Is responsive to customer service requests

Page 52: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Conservation rating variance was 13 percent in early 2014

77%

65%

61%

55%

60%

47%

Bill Payer (78%)

Non-paying Renter (22%)

Bill Payer (78%)

Non-paying Renter (22%)

Bill Payer (78%)

Non-paying Renter (22%)

Ensuring the quality of the water we drink

Making sure we have the water supply we need

Encouraging customers to conserve water

Page 53: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

TV news is the top source for conservation information

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7/08 2/08 2007

Television News* 38% 37% 35%

Newspaper 22% 23% 25%

EBMUD Bill insert/newsletter 14% 16% 6%

Radio 5% 12% 9%

Television Commercial 3% -- --

Brochure/Pamphlet 3% 7% 4%

Billboard 2% 4% 4%

EBMUD websites 1% 1% --

Other website 1% 2% --

Other 10% 11% 33%

Don’t Know 1% 5% 3% * In 2/08 and 2007 surveys, “Television” was not split between “News” and “Commercial”

** 2 responses were allowed per respondent in 2/08 and 2007 surveys *** “Other responses include “phone calls” and “letters” from previous EBMUD actions

Where did you see or hear the conservation information?

Page 54: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

In 2014, active media relations has been a focus of outreach

•480 unique interviews with reporters

–218 on drought declaration/water supply

–152 on conservation tips, rebates, rules

•370 news reports featured EBMUD

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Page 55: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Late 2014 proposed outreach intended to reach non-billpayers

• Ongoing

– Earned media, web, presentations, booths, etc.

• October+

– Social media policy

• November

– Updated outdoor media campaign

• December

– Direct mail to non-billpayers

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Page 56: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer
Page 57: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Semi-Annual Water Quality Report

Planning Committee September 10, 2014

Page 58: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

District’s Water Quality Goals

•Must meet Federal and State Drinking Water Standards

• KPI – Meet 100% of Federal and State Drinking Water Standards

• Strive to meet District’s Water Quality Goals

• KPI – Meet 100% of District’s Water Quality Goals

Page 59: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

•Met all Federal and State Drinking Water Standards

•Met 117 of 119 (98%) District’s Water Quality Goals (WQGs)

– Exceeded the WQGs for TTHMs and NDMA

Page 60: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

• TTHM – Exceeded WQG in 3 of 32 compliance

calculations

– Project underway to alter chemical injection points at Sobrante Water Treatment Plant

•NDMA – Exceeded WQG in 1 of 10 samples

– WateRF Projects •Natural sources of NDMA precursors

•Alternative polymer evaluation

Page 61: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

UCMR 3

• Provide occurrence data to USEPA

• Prelude to potential regulatory action

• 30 unregulated contaminants

• Began monitoring: Fall 2013

• Detected – Chlorate

– Vanadium

– Strontium

– Hexavalent chromium

Page 62: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Hexavalent Chromium (Cr(VI))

• CA established MCL (10 µg/L) on July 1, 2014

•District began UCMR3 monitoring on Fall 2013

• Cr(VI) detected in UCMR3 samples based on USEPA detection limit (0.03 µg/L)

• Based on CA detection limit (1 µg/L) our UCMR3 data would be reported as nondetects.

Page 63: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

CalEnviroScreen

•Quantitative assessment of pollution burden

– CalEPA Office of Environmental Health Hazard Assessment (OEHHA)

– Identify areas with high pollution burden

• Version 2.0

– Drinking Water

– Finer resolution

– Draft April 2014

Page 64: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer
Page 65: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

CalEnviroScreen (cont)

• Acknowledge contaminant concentration used may represent untreated water

• Reference to consumer confidence reports

Page 66: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Potential Regulatory Action

• Candidate Contaminant List (CCL) 4

• Unregulated Contaminant Monitoring Rule (UCMR) 4

•Distribution System Reservoirs Rule

– Asked District staff to provide information on District maintenance practices (October 15, 2014)

Page 67: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

• Research – District operations continues to experience

nitrification

– Beginning work to gain a better understanding of the underlying causes in an effort to improve operations

• Portland Water Bureau – Lead violation

– Boil Water Notice (TCR violation)

– Nitrification

Page 68: Wet Weather Consent Decree Implementation Update...Wet Weather Consent Decree Implementation Update Planning Committee September 10, 2014 Agenda •Background •Regional Private Sewer

Questions