Superfund

2026-03-04
Lower Duwamish Waterway Superfund Settlement Summary

Settlement Resources Press Release Lower Duwamish Consent Decree (pdf) (10.95 MB) Lower Duwamish Complaint (pdf) (192.55 KB)On March 4, 2026, the U.S. Environmental Protection Agency (EPA), U.S. Department of Justice (DOJ) and the state of Washington, reached a settlement agreement with more than 100 potentially responsible parties to address hazardous substances released into the Lower

CategoriesFrom The WebTagsBoeing, Duwamish River, EPA, Port Of Seattle, Superfund
2018-04-10
Port projects in the Duwamish

This April 2018 Port of Seattle presentation outlines port and habitat recovery projects along the Lower Duwamish Waterway in Seattle, covering terminals 105, 107, 108, and 117, as well as Turning Basin #3 and the Lower Duwamish Waterway Superfund Site. The document highlights environmental restoration efforts, including shoreline and aquatic habitat improvements near Georgetown and South Park neighborhoods. Terminal 108 is featured as an example of habitat recovery work, showing before-and-after conditions of riparian restoration along the waterway.

TagsDuwamish River, Port Of Seattle, Presentation, Salmon, Superfund

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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