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Background

The site has been an industrial use facility since the turn of the century, being owned and operated by Tecumseh Products Company (TPC) since 1934. TPC manufactured automotive parts, refrigeration systems, small tools and toys at this location until June 2008, when manufacturing ceased. TPC used Trichloroethene and 1,1,1-Trichloroethane for parts degreasing, historically. Waste streams included solvent distillation sludges, spent mineral spirits, paint waste, waste oil, scrap metal, metal fines, iron phosphate and citric acid solution. TPC was brought under RCRA regulation when they applied for and were granted Interim Status for container and tank storage areas for solvent wastes on June 10, 1982. Later that year the tank storage area underwent closure, TPC thereafter was a hazardous waste generator until 2008.
Volatile Organic Compound (VOC) contamination was discovered onsite in soil and shallow groundwater during a Phase II investigation by a prospective purchaser in January, 2009. Exceedances of VOCs and metals were found in soil and groundwater. In March, 2009, TPC sampled the groundwater at surrounding properties and determined that contaminated groundwater was migrating offsite. TPC notified the Michigan Department of Environmental Quality and residents within the plume migration field and facilitated connection to municipal water where needed in April, 2009. The site was referred by MDEQ to EPA in May, 2009. EPA Region 5 immediately began working with EPA Headquarters to add TPC to the Government Performance and Results Act (GPRA) 2020 Baseline. EPA entered into an order with TPC March 29, 2010. TPC sold the facility in 2010, but remains the legally responsible party for cleanup. As such, the site presents an opportunity for Brownfield's re-use and job creation.

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CURRENT CONDITIONS

Groundwater pollutants exceed the Maximum Contaminant Level (MCL) beyond the facility boundary, following the direction of groundwater flow to the northeast and east. Residential property exists northeast and east of the site over the plume. The plume currently appears to end prior to reaching a wetland, which acts as a buffer to the River Raisin, approximately ½-3/4 miles east of the facility. Groundwater investigation is ongoing, and a quarterly monitoring program was enacted April, 2010. Soil gas sampling is being conducted above the groundwater plume. Recent sub-slab soil gas samples collected underneath the facility show elevated levels of TCE throughout the footprint of the building. Source characterization is on-going.

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