For questions about the Wastewater Treatment Division website, please send an e-mail message or contact us at:

King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

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Puget Sound shoreline next to the West Point Treatment Plant, Seattle

West Point Treatment Plant

Welcome to the West Point Treatment Plant, located about four miles northwest of downtown Seattle next to Discovery Park on the shores of Puget Sound.

The plant is part of King County's regional system that treats wastewater for about 1.5 million people and covers 420 square miles in the Puget Sound region. Every day, the West Point Plant cost-effectively treats wastewater and stormwater from homes, offices, schools, agencies, businesses and industries in Seattle, north King County, south Snohomish County, and some areas of Lake Washington.

West Point Treatment Plant Tour from King County DNRP on Vimeo.

We have a new street address!

West Point Treatment Plant
1400 Discovery Park Blvd
Seattle, WA 98199

  

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West Point Aerial Image
The West Point Treatment Plant is located next to Discovery Park on Puget Sound.

Service area for the West Point Treatment Plant
West Point Treatment Plant service area. View larger version (PDF, 2.2MB).

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