EPA Technology News & Trends - Tacoma "Well 12A" Superfund Site


The U.S. EPA Region 10 office used an adaptive site management approach that relied on high-resolution site characterization techniques to help definite treatment area at Commencement Bay-South Tacoma Channel Superfund site. The Well 12A ROD is first specifying mass discharge reduction using excavation, in situ thermal (ERH), followed by heat enhanced "bioremediation".

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Analytical mapping imagery depicting contaminant mass distribution across the Well 12A site, which was used to define zones of excavation, thermal treatment, and in situ bioremediation.