Latest information on the Lower Duwamish
Get the latest on the cleanups we oversee in the Lower Duwamish.
Ecology, the Environmental Protection Agency (EPA), King County, and the City of Seattle work continuously to control sources of contamination to the Lower Duwamish Waterway (LDW). We post the latest source control information on this page, including reports and updates on work underway.
Get involved by attending our community office hours in 2025.
Monthly community office hours in 2025
Join us in South Park and Georgetown once a month to learn more about the cleanup sites along the Lower Duwamish Waterway. We will be tabling at local businesses and in community spaces throughout 2025. Come connect with cleanup site managers, technical staff, and our outreach team in-person! We will post office hour locations three months in advance.
Do you have a question about the cleanup of the Lower Duwamish Waterway? Meet us this month at a neighborhood meeting in Georgetown or South Park. Contact Meredith Waldref with questions.
South Park Neighborhood Association monthly meeting
Tuesday, May 13
6:00 p.m.
Duwamish River Community Hub
8600 14th Ave S, Seattle, WA 98108
Georgetown Community Council monthly meeting
Monday, May 19
7:00–9:00 p.m.
Georgetown City Hall
6202 13th Ave S, Seattle, WA 98108
We are hoping to hold office hours at El Mercadito in the neighborhood of South Park in June 2025.
Specific date, time, and location to be announced. Contact Meredith Waldref with questions.
Meet us this July in Seattle's Georgetown neighborhood. This month we will be at Minimart City Park's July Art Attack and Birthday Party. Contact Meredith Waldref with questions.
July Art Attack
Saturday, July 12, 2025
Time and location to be announced.
2024 update on cleanup sites
We have recently completed and published a summary of the status of the formal cleanup sites along the Lower Duwamish in July 2024.
EPA's Lower Duwamish Waterway work
You can learn about the federal government's work on the EPA Lower Duwamish Waterway Superfund webpage, where you can subscribe to their email listserv for periodic updates.
Related links
Contact information
LDW Email
LDW@ecy.wa.gov
Brett Carp
Aquatics Unit Supervisor
Brett.Carp@ecy.wa.gov
206-496-7007
Ryan Gardiner
Source Control Project Manager
Ryan.Gardiner@ecy.wa.gov
425-681-5543
Kim Wooten, Ph.D.
Toxics Cleanup Program Regional Section Manager
Kim.Wooten@ecy.wa.gov
425-324-1658