Cowlitz Indian Tribal Housing Wastewater Treatment Plant
National Pollutant Discharge Elimination System (NPDES) Wastewater Discharge Permit
Oct. 30, 2025, 12 a.m. - Dec. 1, 2025, 11:59 p.m. PT
We invite you to comment on the draft permit No. WA0040258
The draft permit we proposed to reissue to Cowlitz Indian Tribal Housing Wastewater Treatment Plant authorizes the discharge of treated wastewater to the Cowlitz River.
You can view the documents at Cowlitz Indian Tribal Housing Wastewater Treatment Plant Documents or visit the Water Quality Permitting and Reporting Information System (PARIS) website.
Background
We regulate wastewater released from municipalities and industries using the National Pollutant Discharge Elimination System (NPDES) Wastewater Discharge Permit. This permit regulates wastewater that goes directly into lakes, rivers, Puget Sound, or the ocean (surface water). All wastewater must be treated before it goes into surface water to protect human health and aquatic life. Learn more about water quality individual permits.
Comment online
- Submit your comment by email: swrowqpermits@ecy.wa.gov
Comment by mail
Southwest Region Office
PO Box 47775
Olympia, WA 98504-7775
Questions
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