Tour Seattle Georgetown Wet Weather Treatment Station for Future SODO

Join the Duwamish Alive Coalition for a walking tour of the Georgetown Wet Weather Treatment Station to learn how it cleans stormwater and wastewater during big storms!Mouth of Duwamish Wet Weather Treatment program is excited to invite the Duwamish Alive Coalition and the wider Our Green-Duwamish community to tour the King County WTD Georgetown Wet Weather Treatment Station (GWWTS)!This new state-of-the art facility treats up to 70 million gallons of combined rainwater and wastewater during heavy winter rain events. Join us for a guided tour and learn how this facility is improving water quality of the Duwamish River. We will walk through the treatment process and tour the extensive green stormwater features onsite. Attendees will leave with a deeper knowledge of how they can protect our waterways.The tour will also include information about the future Mouth of Duwamish Wet Weather Facilities

By asking your help to shape the look and feel of clean water facilities in SODO!

King County has proposed clean water facilities to reduce combined sewer overflows (CSOs) at five outfall locations at the mouth of the Duwamish River. These facilities will help control the stormwater and wastewater that is sometimes released into the Duwamish River during heavy storms.

The proposed solution includes:

A new wet weather treatment station in SODO

A new storage tank in West Seattle (Industrial District West)

A new outfall for cleaned water

New pipes and supporting facilities to connect flows along the way

This survey will help inform the look and feel of the new wet weather treatment station in SODO. It will also help us understand how we may align project goals.

We’ll also offer opportunities in the future to give input on the West Seattle storage tank, in alignment with the schedule for that work.In May 2025, King County announced our proposed solution for Mouth of Duwamish Wet Weather Facilities, which will help improve water quality in the Duwamish River and Elliott Bay. The proposed solution includes:

• A new wet weather treatment station in SODO
• A new storage tank in West Seattle (Industrial District West)
• A new outfall for cleaned water
• New pipes and supporting facilities to connect flows along the way

Help shape the look and feel of proposed clean water facilities in SODOFill out our survey on the look and feel of clean water facilities in SODO by August 31st, at this survey link: https://publicinput.com/mddesign. Survey ends August 31st.The tour involves walking up and down 2-3 flights of stairs. Closed-toed shoes and long pants are required. The majority of the tour is outside.Participants must be at least 9 years old.

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