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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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