National Pollutant Discharge Elimination System (NPDES) Wastewater

The National Pollutant Discharge Elimination System (NPDES) program is a federal program, which has been delegated to the State of California for implementation. NPDES permits, also referred to as Waste Discharge Requirements, are issued to regulate the discharge of municipal wastewater or industrial process, cleaning, or cooling, wastewaters, commercial wastewater, treated groundwater from cleanup projects, or other wastes to surface waters only. If the waste discharge consists only of non-process storm water, it may be regulated under the NPDES Storm Water program. For discharges of waste to land, see the WDRs for Wastewater Program Page

All municipalities within the North Coast Region which discharge wastewater to surface waters are currently regulated by NPDES permits issued by the Regional Water Board. Industrial, commercial, cleanup or other operations which discharge wastes directly into municipal, or other publicly owned wastewater collection systems, are not required to obtain a NPDES permit from the Regional Water Board, but must comply with waste discharge requirements issued by the appropriate public entity.


Contacts

Mona Dougherty, Senior Water Resource Control Engineer
NPDES Wastewater Unit
Mona.Dougherty@waterboards.ca.gov
(707) 445-6129

Program Resources

California Integrated Water Quality System (CIWQS)
Monitoring & Reporting

  • DMRs - Discharge Monitoring Reports Page
  • eSMRs - Electronic Self-Monitoring Reports Page

Do I need a Permit?
Recycled Water
Water Quality Goals
WDRs for Wastewater

Resources and Other Documents

  (Page last updated 11/5/24)

 
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