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The BasicsThe Basics

Permit Overview

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Goal of ProgramGoal of Program

• Reduce pollutants in discharges from the MS4

• Change Behavior• Permit Compliance

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RequirementRequirement

Reduce pollutants in storm water discharges to the Maximum Extent Practicable (MEP) by implementing

a Storm Water Management Program (SWMP)

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MEPMEP

• Technology standard • Dynamic

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SWMPSWMP

• 6 Minimum Control Measures as a basis for a SWMP

• BMPs to address 6 Minimum Control Measures

• Measurable Goals for each BMP• Time schedules for each

Measurable Goal

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Minimum Control Minimum Control MeasuresMeasures

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Public Education Public Education RequirementsRequirements

• Educate the public on – The impacts of storm water– The steps the public can take to

reduce pollutants in storm water runoff

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Public Participation Public Participation RequirementsRequirements

• Comply with State and local public notice requirements

• Allow the public to review and comment on the permit and SWMP

• Involve the public in the implementation of SWMP

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Illicit Discharge Illicit Discharge Detection and Detection and

Elimination Elimination RequirementsRequirements

• Storm sewer system map • An ordinance prohibiting non-storm

water discharges• Plan to detect and address non-

storm water discharges• Educate the public on the hazards

of illicit discharges

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Construction Site Construction Site Control RequirementsControl Requirements

• An enforceable ordinance to require erosion and sediment controls at construction sites

• MS4 must require construction site operators to use BMPs

• Site plan and BMP review• Public comments/complaints procedures• Site inspections and enforcement

procedures

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Post-Construction Post-Construction Management Management RequirementsRequirements

• An ordinance requiring long term BMPs

• On-going maintenance of BMPs

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Pollution Pollution Prevention/Good Prevention/Good

Housekeeping Housekeeping RequirementsRequirements

• Examine municipal activities that have the potential to cause pollution in storm water

• Implement BMPs to reduce that potential

• Train employees

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Annual ReportsAnnual Reports

• Have you done what you said you would do?

• In light of water quality, have you seen noticeable changes?

• Are the BMPs you chose effective?• Are they implemented well?• Improvements?• Reporting form

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Supplemental Supplemental ProvisionsProvisions

• Communities over 50,000 or subject to high growth (>25%/10 yrs)– Comply with Receiving Water

Limitations– Incorporate Design Standards

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Receiving Water Receiving Water LimitationsLimitations

• Water Quality Standard– may require more than MEP

• Objectives (http://www.swrcb.ca.gov/)– Basin Plans– California Toxics Rule– Statewide Water Quality Control Plan

• Iterative Approach– Ex: San Diego - trash (floatables) in

Chollas and Paleta Creeks

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Design StandardsDesign Standards

• Post Construction Requirements

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