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 (ODEQ) has been delegated authority to issue other NPDES permits in Oregon.

For EPA-issued permits, see table below.

For state-issued permits, visit ODEQ 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
Location Facility or Permit Name Permit Number Effective Date Expiration Date
Warm Springs Reservation Warm Springs Kah-Nee-Ta Resort OR0034100 2007-12-01 2012-11-30
Warm Springs Reservation Warm Springs Wastewater Treatment Plant OR0032638 2021-07-01 2026-06-30
Warm Springs Reservation Warm Springs National Fish Hatchery OR0054917 2019-03-01 2024-02-29
Offshore Coastal Waters General Permit for Offshore Seafood Processors in Federal Waters Off the Washington and Oregon Coast WAG520000 2019-05-01 2024-04-30
Lower Columbia River Discharge 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		 2023-07-01 2028-06-30
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Last updated on January 21, 2025