Columbia River Carbonates Draft Permit
National Pollutant Discharge Elimination System (NPDES) Wastewater Discharge Permit
July 15, 2025, 12 a.m. - Aug. 13, 2025, 11:59 p.m. PT
We invite you to comment on draft Water Quality Permit No. WA0039721
The permit allows Columbia River Carbonates to send (discharge) treated wastewater to Diking District No. 2 ditch to Columbia River via Outfall 001 and to City of Woodland Wastewater Treatment Plant via Outfall 002. You may view the documents for Columbia River Carbonates 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
To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.