We invite your comments on the NPDES permit application for PUD No. 1 of Chelan County – Rock Island Dam and Rocky Reach Dam.
Permit No. WA0991033 would authorize the discharge of industrial wastewater (non-contact cooling water/sumps) to the Columbia River from Rocky Reach Dam, Hwy 97, six miles north of Wenatchee, Washington.
Permit No. WA0991032 would authorize the discharge of industrial wastewater (non-contact cooling water/sumps) to the Columbia River from Rock Island Dam, Hwy 28, 12 miles south of Wenatchee, Washington.
View the application in our Water Quality Permitting and Reporting Information System (PARIS) database.
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.