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.
Wednesday, January 15
4:00–6:00 p.m.
At Seattle Public Library - South Park Branch
Join us this month in South Park to kick off our 2025 office hours! Connect with cleanup site managers, technical staff, and our outreach team in-person! Learn more about the Industrial Container Services cleanup site and the Delta Marine Industries site, both open for comment. This month we will be joined by the Lower Duwamish Waterway Group with updates on the sedmient cleanup happening right now in the upper reach.
Questions? Contact Meredith Waldref.
Information will be added as events are scheduled.
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