Skip to main content
Many King County facilities are closed to the public, and many services are being offered remotely. Learn more about changes and cancellations.  
King County logo

Wastewater Treatment Division (WTD) and Novel Coronavirus (COVID-19)

WTD operations staff remain on the job 24/7 to ensure the region’s wastewater treatment service continues. Following the guidance of Seattle-King County Public Health, our offices are closed to the public and all facility tours are suspended until further notice. Please check back in May for updates.

For questions about COVID-19, we encourage people to visit the Public Health – Seattle & King County website: www.kingcounty.gov/covid and subscribe to the Public Health Insider blog: www.publichealthinsider.com

West Point, located next to Discovery Park in Seattle, is part of King County’s regional wastewater treatment system.

View West Point Restoration Updates

West Point treats wastewater from homes and businesses in Seattle, Shoreline, north Lake Washington, north King County and parts of south Snohomish County. Seattle’s combined stormwater/wastewater sewer system also flows into West Point.

Approximately 90 million gallons a day of wastewater is treated at this facility during the dry months. During the rain/storm season, West Point provides secondary treatment for flows up to 300 million gallons a day (mgd) and provides primary treatment and disinfection for flows exceeding 300 mgd and up to 440 mgd.

West Point Treatment PlantWest Point Treatment Plant

View more photos on our Flickr site  .

Newsletters

Contact us

24-hour emergency and odor reporting:   206-263-3801
Administration:  206-477-9800

Address
1400 Discovery Park Blvd.
Seattle, WA 98199

Directions and map