Stormwater - Construction General Permits

• NEW! Los Angeles 2022 Reissued CGP Workshop Recording and Staff Presentation.
• NEW! State Water Board 2022 Reissued CGP Road Show Recording and Presentation
• NEW! 2022 CGP Soil Screening TMDL Compliance for Los Angeles Area Lakes and Los Angeles and Long Beach Harbor Waters
  Dischargers shall use the soil screening investigation (prior to land disturbance) as part of their pollutant source assessment and comply with the numeric effluent limitation for TSS, if applicable, to comply with the Los Angeles Area Lakes TMDL (by September 1, 2023) for chlordane, DDT, dieldrin, and PCBs and the Los Angeles and Long Beach Harbor Waters TMDL (by March 23, 2032) for copper, lead, and zinc.
• NEW! Regional Dewatering Permit
  The Los Angeles Region has a separate Dewatering NPDES Permit. Dischargers with dewatering activities subject to a separate NPDES permit for dewatering activities are not subject to the provisions in the 2022 CGP Attachment J and shall obtain a separate NPDES coverage as required by the State or Regional Water Board. Please contact Watershed Regulatory for information.

• 2009 General Permit for Stormwater Discharges Associated with Construction Activity
  Permits issued under the 2009 CGP will expire August 31, 2025. New Notice of Intent shall be applied for site construction not completed.
• Reissued Stormwater Construction General Permit was adopted by State Water Board on September 8, 2022 - the new requirements, including Total Maximum Daily Load, will become effective on September 1, 2023.
  2022 NPDES Construction Stormwater General Permit Reissuance | California State Water Resources Control Board

• Stormwater Pollution Prevention Plan Guide and Template (Optional)
  • USEPA
  • CASQA
• Inspection Checklist for Los Angeles Regional Board

• Stormwater Multiple Application and Report Tracking System (SMARTS)
• List of Active Construction Stormwater Permitees:
  • Go to "View SW Data" "Download NOI Data By Regional Board"
• Fee Invoice Information
• QSD/QSP Search:
  • SMARTS: Go to "View SW Data" - "Stormwater QSD Reports"
  • CASQA QSD and QSP Lookup:

• Linear Projects: Linear projects disturbing one or more acres of land must obtain coverage under the Construction General Permit Order 2009-0009-DWQ
• Low Impact Development (LID) Info:
  • Los Angeles County
  • Ventura County
  • CASQA
• Linear Construction