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Public Notice: Proposed consent decree for Lower Duwamish Waterway in Seattle

Proposed consent decree for Lower Duwamish Waterway in Seattle
How to Comment
Comments Due
April 13, 2026

Comments may be submitted either by email or by mail:

Email: pubcomment-ees.enrd@usdoj.gov

Mail: Assistant Attorney General, U.S. DOJ – ENRD, P.O. Box 7611, Washington, D.C. 20044-7611

Comments should refer to United States and the State of Washington v. The Boeing Company, et al., D.J. Ref. No. 90-11-3-07227.

Refer to the Federal Register for additional information.

Publish Date
March 13, 2026

Summary

On March 4, 2026, EPA, the U.S. Department of Justice, and the state of Washington reached agreement on a proposed settlement (called a consent decree) with more than 100 potentially responsible parties to address hazardous substances released into the Lower Duwamish Waterway in Seattle. Cleanup work is estimated to cost $668 million and take at least 10 years to complete.

Under the settlement, the Lower Duwamish Waterway Group – which consists of the Boeing Company, city of Seattle, and King County – agreed to design and perform the cleanup plan EPA selected for the in-water portion of the Lower Duwamish Waterway Superfund site.

The consent decree was lodged in U.S. District Court for the Western District of Washington and is subject to a 30-day public comment period as well as final court approval.

For more information:

  • Federal Register (3/12/2026)
  • U.S. Dept. of Justice Proposed Consent Decrees
  • Lower Duwamish Waterway Superfund Settlement Summary
  • Lower Duwamish Waterway Superfund site

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Last updated on March 13, 2026
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