SW

Stormwater Directory

California — Local Jurisdictions

City and county stormwater requirements beyond the state permit

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12 jurisdictions available

City of Los Angeles

City

MS4 Phase I

Submit to: City of Los Angeles Department of Building and Safety (LADBS)

Detention: Required

Impervious limit: No citywide cap; however, LID Ordinance requires o…

Hillside AreaVery High Fire Hazard Severi…+1 more

City and County of San Francisco

City

MS4 Phase I

Submit to: San Francisco Public Utilities Commission (SFPUC)

Detention: Required

Impervious limit: No cap (dense urban environment); however, project…

Combined Sewer AreaMaher Ordinance Area

City of San Diego

City

MS4 Phase I

Submit to: City of San Diego Development Services Department (DSD)

Detention: Required

Impervious limit: No citywide cap; PDP threshold: projects creating …

Coastal Overlay ZoneEnvironmentally Sensitive La…+1 more

City of San José

City

MS4 Phase I

Submit to: City of San José Department of Public Works / Planning, Building and Code Enforcement (PBCE)

Detention: Required

Impervious limit: No citywide cap; C.3 requirements triggered at ≥ 1…

Riparian CorridorFlood Zone

City of Sacramento

City

MS4 Phase I

Submit to: City of Sacramento Community Development Department / Department of Utilities

Detention: Required

Impervious limit: No citywide cap; projects creating or replacing ≥ …

Flood Zone / Levee-Protected…American River Parkway Buffe…

City of Oakland

City

MS4 Phase I

Submit to: City of Oakland Bureau of Building / Public Works Department

Detention: Required

Impervious limit: No citywide cap; C.3 requirements triggered at ≥ 1…

Oakland Hills Fire ZoneCoastal Zone / Port Area

City of Fresno

City

MS4 Phase I

Submit to: City of Fresno Development and Resource Management Department (DARM)

Detention: Required

Impervious limit: No citywide cap; projects creating ≥ 1 acre of new…

Groundwater Recharge Area

City of Long Beach

City

MS4 Phase I

Submit to: City of Long Beach Development Services Department

Detention: Required

Impervious limit: No citywide cap; LID requirements triggered at ≥ 5…

Coastal ZoneLos Angeles River / San Gabr…

City of Riverside

City

MS4 Phase I

Submit to: City of Riverside Public Works Department / Community and Economic Development Department

Detention: Required

Impervious limit: No citywide cap; projects creating ≥ 5,000 sq ft o…

Santa Ana River WatershedHillside / Steep Slope Overl…

City of San Bernardino

City

MS4 Phase I

Submit to: City of San Bernardino Community Development Department

Detention: Required

Impervious limit: No citywide cap; WQMP required for projects creati…

Santa Ana River Watershed / …

City of Anaheim

City

MS4 Phase I

Submit to: City of Anaheim Public Works Department / Planning and Building Department

Detention: Required

Impervious limit: No citywide cap; WQMP required for projects meetin…

Anaheim Hills / Hillside Dev…Santa Ana River Watershed

Los Angeles County (Unincorporated)

County

MS4 Phase I

Submit to: Los Angeles County Department of Public Works

Detention: Required

Impervious limit: No countywide cap; projects creating ≥ 500 sq ft o…

Significant Ecological Area …Hillside Management Area+1 more
Note: Local requirements are layered on top of the SWRCB state permit. Both state and local requirements must be satisfied before beginning construction.