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NPDES Permit for Warm Springs Wastewater Treatment Plant in Oregon

Below are EPA's National Pollutant Discharge Elimination System (NPDES) final permit and supporting documents for the Warm Springs Wastewater Treatment Plant located on the Confederated Tribes of Warm Springs Reservation in Oregon.

Permit number: OR0032638
Effective date: July 1, 2021
Permit expires: June 30, 2026

NPDES Permit, Warm Springs WWTP, Oregon, #OR0032638 (pdf) (May 13, 2021)
Final wastewater permit.
NPDES Permit Fact Sheet, Warm Springs WWTP, Oregon, #OR0032638 (pdf) (March 2021)
Technical basis for permit and Clean Water Act Section 401 Certification.