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Comment Period

City of Dayton public notice of review of Renewal Application

National Pollutant Discharge Elimination System (NPDES) Wastewater Discharge Permit

March 25, 2021 - May 3, 2021, 12:05 a.m.

We invite your comments on the permit renewal application for reissuance of draft permit WA0020729 for the City of Dayton Wastewater Treatment Plant located in Columbia County. The permit authorizes the discharge of municipal wastewater to the Touchet River.

View the renewal application here or visit PARIS, Ecology's Water Quality Permitting and Reporting System webpage.


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.

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Comment online

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Comment by mail

Lucy Peterschmidt
Dept. of Ecology - WQP
4601 N. Monroe Street
Spokane, WA 99205
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Shara Joy
Permit Coordinator

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.