Commencement Bay-Nearshore Tideflats | Region 10 | US EPA

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Commencement Bay-Nearshore Tideflats

Aerial view of Commencement Bay's waterways.Summary

The Commencement Bay Nearshore-Tideflats (CB/NT) Superfund site is located in the City of Tacoma and the Town of Ruston at the southern end of Puget Sound in Washington. The site encompasses an active commercial seaport and includes 12 square miles of shallow water, shoreline, and adjacent land - most of which is highly developed and industrialized.

EPA placed the site on the Superfund National Priorities List in 1983 due to widespread contamination of the water, sediments, and upland areas. EPA has divided the site into several "operable units" that are being managed as distinct cleanup sites:

Related Information Documents


    Asarco Smelter:
    • Smelter Complex, Residential Cleanup, Sediments - Kristine Koch (, 206-553-6705
    • Tacoma Tar Pits - Tamara Langton (, 206-553-2709

    • Hylebos, Thea Foss, Wheeler-Osgood, Middle, Sitcum, St. Paul - Kristine Koch, 206-553-6705

    Related Projects:
    • Occidental Chemical Removal - Joe Wallace (, 206-553-4470
    • Olympic View Resource Area - Kristine Koch, 206-553-6705

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