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Thompson Chemicals

 
Site Contact:
Michael Davis
Federal On-Scene Coordinator

(davis.michaelb@epa.gov)

Site Location:
60 Chouteau Ave
St Louis, MO 63102
response.epa.gov/ThompsonChemicals

The Site is an active solvent transfer station. Past activities at the Site resulted in a release of hazardous substances into the environment, including dioxins, polycyclic aromatic hydrocarbons (PAHs), and volatile organic compounds (VOCs).

Past removal activities at the site, namely the excavation of a former underground storage tank, pumping lines, and surrounding soils, resulted in the on-site storage of 12 roll-off boxes which contained approximately 250 cubic yards of soils and debris, 238 55-gallon drums of IDW, and a soil berm associated with a former above-ground storage tank (AST) farm.

The Site is contaminated with dioxins, including 2,3,7,8-tetrachlorinated dibenzo-p-dioxin, PAHs, and VOCs. An Engineering Evaluation and Cost Analysis (EE/CA) was completed by a group of Potentially Responsible Parties (PRPs) leading to approval of the 2006 Action Memorandum. The removal activities prescribed for the Site in the 2006 Action Memorandum consisted of: (1) removal and off-site disposal of contaminated soil and debris currently stored onsite in 12 20-cubic yard roll-off boxes; (2) removal and off-site disposal of dioxin contaminated soils; (3) capping of portions of the site; (4) implementation of institutional controls; and (5) groundwater monitoring for a period of two years.

A Time Critical Removal Action was conducted to implement a subset of the activities prescribed for the Site in the 2006 Action Memorandum, namely the off-site disposal of the 12 roll-off boxes and contents, the 238 investigative derived waste (IDW) filled drums, and the berm area soils. The removal work occured during July through November 2013. The removal is completed.


For additional information, visit the Pollution/Situation Report (Pol/Sitreps) section.