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NPDES Permits in California (excluding Tribal Permits)

EPA’s Pacific Southwest (Region 9) issues NPDES permits for any discharges into federal ocean waters. All other permits are issued by the California Environmental Protection Agency (CalEPA). See the table below for final and draft permits issued by EPA.

For State-Issued Permits: CalEPA State Water Resources Control Board NPDES Permit ProgramExit
See Also: California Tribal Lands NPDES Permits

Draft and Final Permits

The table below contains all final (i.e. active) and draft (i.e. proposed) NPDES permits issued by EPA’s Pacific Southwest (Region 9) within California. It includes permits for individual facilities, general permits, and stormwater permits. Click on the facility/permit name to view the permit and supporting documents.

Draft Permits
Facility / Discharger Location Permit Number Permit Status Comment Period
Rose Canyon Sustainable Aquaculture Project
Rose Canyon Fisheries, Inc. (RCF)
San Diego N/A Draft Ended: 01/15/2016
Oceanside Water Pollution Control Plant and Collection System Exit City and County of San Francisco CA0037681 Tentative Order Written comments or objections to this action must be submitted no later than May 20, 2019, by 5:00 p.m.

Final Permits
Facility / Discharger Location Permit Number Permit Status Effective Date Expiration Date
E.W. Blom Point Loma Metropolitan WWTP and Ocean Outfall
City of San Diego
San Diego CA0107409 Final
301(h) Variance Request
10/01/2017 09/30/2022
Oceanside Water Pollution Control Plant and Collection System
City and County of San Francisco
San Francisco CA0037681 Final 10/01/2009 09/30/2014
Edward C. Little Water Recycling Plant
West Basin Municipal Water District
El Segundo CA0063401 Final 09/01/2018 08/31/2023
Reclamation Plant No. 1 and Treatment Plant No. 2,
Collection System, and Outfalls
Exit(181 pp, 3.6 MB, About PDF)
Orange County Sanitation District
Huntington Beach
Fountain Valley
CA0110604 Final 07/20/2012 07/19/2017
Hyperion Treatment Plant
City of Los Angeles
Playa del Rey CA0109991 Final 04/01/2017 03/31/2022
California Offshore Oil and Gas General Permit Offshore CAG280000 Final 03/01/2014 02/28/2019