An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Remediation System Evaluation, Comm. Bay/South Tacoma Channel, Well 12A Superfund Site

The first operable unit (OU1) of the Commencement Bay/South Tacoma Channel Superfund Site addresses
soil and groundwater contamination associated with the Time Oil property that was first discovered in
public supply Well 12A in 1981. Site contamination primarily consists of chlorinated solvents such as
1,1,2,2, tetrachloroethane (PCA), tetrachloroethylene, and trichloroethylene as well as waste oils and lead.
A number of removal actions have been conducted at the site including excavation of contaminated filter
cake, operation of a vapor extraction system (VES), and operation of a groundwater extraction and
treatment system (GETS).

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.