Georgetown Wet Weather Treatment Station

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The Georgetown Wet Weather Treatment Station Construction is complete! Please share your thoughts on how construction went.

We can't say thank you enough to our project neighbors and the Georgetown community for all your input during design and your patience during construction. Your feedback and input have been important at every step of this project. The end of construction is no exception.

Being a good neighbor is very important to King County. Please share your views on how we did during construction from your perspective. Thanks in advance for taking a few minutes of your day to fill out our post-construction survey: SURVEY LINK

Come visit the facility!

In 2024, we'll be inviting the community in for tours of the facility. Stay updated on our website - linked here



Project team in orange vests, glasses, and hard hats, posing under two white canopies in front of the Georgetown Wet Weather Treatment Facility.

Project team in orange vests, glasses, and hard hats, posing under two white canopies in front of the Georgetown Wet Weather Treatment Facility.

We're ready for the rain! 

The Georgetown Wet Weather Treatment Station is now operating, cleaning millions of gallons of polluted stormwater runoff that would have otherwise flowed directly into the Duwamish River and Puget Sound. Keep an eye on the facility after large rain events. When it's time to start processing the polluted stormwater, our facility will light up so you know it's working. This wonderful piece of art, "Theater of a Storm", by Blanca Lighting, was developed based on community requests to understand when the station was operational.

Georgetown Wet Weather Treatment station at night illuminated with blue lights.

Georgetown Wet Weather Treatment station at night illuminated with blue lights.

Don Wilkison's Hidden River project starts at our outfall site under the First Avenue South Bridge

Don Wilkison's Hidden River project considers the invisible architecture of wastewater treatment through a series of outdoor posters and public events highlighting clean-water efforts.

Hidden River includes multiple components, two of which are located at:

  • Georgetown Wet Weather Treatment Station Outfall Site (15 S River Street, Seattle, WA 98109)
  • Rainier Valley Wet Weather Storage Facility (2710 S Hanford Street, Seattle, WA).

Downstream (pictured below), is a set of four unique poster designs, that hang on a drop structure under the First Avenue South Bridge. These posters tell visual stories about our water systems and neighborhood connections to the Georgetown Wet Weather Treatment Station. Midstream, a custom banner, is installed at the Rainier Valley location. And Headwaters, a series of free public events, will provide clean water information as well as artist-designed packets of pollinator seeds with planting instructions.

Visit the Hidden River project website for more info and updates.

Wilkison's artworks and programming are an extension of the “Hidden Rivers/Invisible Architecture” theme devised by Sans façon in their groundbreaking art plan for WTD’s Combined Sewer Overflow (CSO) system.

Art painted on a cement block structure showing buildings above ground and an artistic representation of machinery used to manage wastewater flows .

Art painted on a cement block structure showing buildings above ground and an artistic representation of machinery used to manage wastewater flows.