Skip to main content
King County logo

September 12, 2017 update

King County's Wastewater Treatment Division is on schedule to complete upgrades and improvements at West Point Treatment Plant by the end of 2017, following the recommendations of both an initial root-cause analysis as well as the County Council’s independent review that was released on July 18. 

Cost estimates for repairs are substantially below earlier projections, and insurance will cover repair costs minus a $250,000 deductible.
The plant has been fully operational and treating wastewater to permit standards since May 12.

The Washington State Department of Ecology today announced its decision to fine King County $361,000 for the period that West Point was out of compliance between Feb. 9 through May 11, though increased water quality monitoring showed no substantial water quality impairments.   

To learn more, see our September 12 news release.

View the King County Council's Independent Review reports:

Final Report - West Point Treatment Plant Independent Assessment, July 18, 2017

Presentation to the King County Council on the Independent Assessment of the West Point Treatment Plant, July 18, 2017

Visit the marine monitoring page to learn about our water quality monitoring during the West Point restoration last spring. The plant has been operating normally and meeting permit standards since May 12. 
Visit the marine monitoring page to learn about the water quality monitoring that King Count has conducted while West Point Treatment Plant was being restored and the ongoing monitoring. You can find our monitoring plan, frequently asked questions, and contact information for questions and concerns. We will post monitoring data and summaries every two weeks. Visit the environmental monitoring page for permit-required and supplemental monitoring information.


The King County Wastewater Treatment Division is implementing comprehensive restoration actions following a major equipment failure at the West Point Treatment Plant on Feb. 9 that resulted in bypasses of untreated stormwater and wastewater into Puget Sound. Restoration work is ongoing to restore the plant to its full operational capacity as quickly and safely as possible.

King County is committed to keeping people informed as we continue the restoration effort. Progress updates and notices will be available on Web and social media and people can contact us with questions and concerns.

1511_west-point-treatment-processView larger version .

wp-employee-working-on-pump_600Employee working on pump equipment. View more photos on our Flickr site .


Storm impacts on West Point Treatment Plant

For questions or inquiries related to the West Point restoration, please do not call the West Point Treatment Plant.

Contact us:

206-477-5371 (after hours, leave message)