Duwamish Waterway Programs
King County’s Wastewater Treatment Division and its predecessor Metro have worked for more than 40 years to restore the Lower Duwamish Waterway.
King County has been working to clean up the Lower Duwamish for decades. But our efforts to remove historic contamination are only the start.
Learn more about the cleanups, pollution prevention, and what you can do.
The Lower Duwamish Waterway Superfund Cleanup
The East Waterway Superfund Cleanup (part of the Harbor Island Superfund Site)
Keeping pollution out of the water & other cleanup and restoration efforts
How you can help the Duwamish
Contact Us
Phone: 206-477-2514