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Project update

June 2017

Thanks for joining the King County WTD to celebrate the completion of the Murray CSO Control Project on June 10!

Tell us how we did! Your input helps us improve service to our communities

we-want-to-hear-from-youThank you for your patience and understanding during construction of the Murray CSO Control Project. Now that construction is complete, we want to know how well we kept you informed about construction activities. You are invited to complete a post-construction survey. The survey takes about 5 – 10 minutes to complete. You may choose to complete the survey by mail or electronically using the link below.

Click here to access the electronic Murray CSO Control Project Post Construction Survey .

Please complete this survey by Friday, July 7.

The public staircase is now complete!The public staircase provides access between Beach Drive SW and Lincoln Park Way SW.

operations phase

Contact us

Contact Kelly Foley at:


For operations concerns, please contact West Point Treatment Plant’s 24-hour phone line at:

See how public art at KCWTD facilities connects community to our system and the environment.

Project description

King County built a million-gallon underground storage tank across the street from Seattle’s Lowman Beach Park to reduce combined sewer overflows (CSOs). The tank stores excess stormwater and wastewater that would otherwise overflow into Puget Sound when the Murray Pump Station exceeds maximum capacity. Learn more about this project

Project schedule

The Murray Wet Weather Facility began operating in November 2016. Project restoration was completed in spring 2017.


1702_landscaping_600Murray CSO Control Facility - view photos on flickr , February 2017

Project location


Back to the capital projects overview map .

Related information

Protecting Our Waters (Combined Sewer Overflow Control Program), King County

Find out if a CSO is occurring at Murray. King County maintains a real-time notification page so people can see whether CSO discharges are occurring.

This project is funded in part by:

Department of Ecology, State of Washington