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Meetings & Hearings

Open house

Boeing Isaacson Thomson and South Park Landfill cleanup sites

Dec. 5, 2023, 5:30 p.m., Seattle, WA and Online webinar

Drop-in online or in-person during this two-hour open house for food and a conversation about these cleanup sites.

Phone interpretation available in Spanish, Chinese, Vietnamese, and Khmer. All ages welcome!

Boeing Isaacson Thompson and South Park Landfill are contaminated cleanup sites on the Lower Duwamish Waterway in South Seattle. 

Comment on cleanup documents

Both cleanup sites have documents available for public comment. See below for details on the comment periods.

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Duwamish River Community Hub
8600 14th Ave. South
Seattle, WA and Online webinar
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Dec. 5, 2023, 5:30 p.m.
Join online
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Meredith Waldref
Senior Outreach Planner
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Comment period

Boeing Isaacson Thomson cleanup site, Tukwila — Comment on remedial investigation and feasibility study
Closes: Jan. 4, 2024, 11:59 p.m.
See details

To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.