Oregon NPDES permits

In Oregon, EPA issues NPDES permits on Tribal lands and in federal waters off the coast. The Oregon Department of Environmental Quality has been delegated authority to issue other NPDES permits in Oregon.

For EPA-issued permits, see table below.

For state-issued permits, visit DEQ Water Quality Permits.

Related pages:

Public Notices

There are no current public comment opportunities.

Click on the facility/permit name to view permit documents.

NPDES Permits Issued by EPA in Oregon
LocationFacility or Permit NamePermit NumberEffective DateExpiration Date
Warm Springs ReservationWarm Springs Kah-Nee-Ta ResortOR00341002007-12-012012-11-30
Warm Springs ReservationWarm Springs Wastewater Treatment PlantOR00326382021-07-012026-06-30
Warm Springs ReservationWarm Springs National Fish HatcheryOR00549172019-03-012024-02-29
Offshore Coastal WatersGeneral Permit for Offshore Seafood Processors in Federal Waters Off the Washington and Oregon CoastWAG5200002019-05-012024-04-30
Lower Columbia RiverDischarge Permits for Federal Hydroelectric Projects in the Lower Columbia River (Bonneville Project, The Dalles Lock and Dam, John Day Project, McNary Lock and Dam)WA0026778;
WA0026701;
WA0026832;
WA0026824		2023-07-012028-06-30
Contact us about NPDES permits around the nation to ask a question, provide feedback, or report a problem.
Last updated on January 20, 2026