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Superfund Site Report: WHEELER PIT
  • Map Locating Superfund Site
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  • Site Description
    Stage of Clean-up: Construction Completed

    Conditions at listing (September 1983): The Wheeler Pit covers 4 acres near Janesville, Wisconsin. The unlined gravel pit, owned by the Chicago, Milwaukee, St. Paul & Pacific Railroad, is about 30 feet above ground water in 200 feet of permeable soils. Wastes were accepted from 1956 until 1974. From 1960 to 1974, General Motors (GM) used the site to dispose of paint sludges and fly ash from its Janesville auto assembly plant. GM indicates that about 22.3 million gallons of organic and inorganic sludges containing solvents and HEAVY METALS were disposed of in the gravel pit. It was closed, covered, regraded, and seeded in 1975. Sampling by GM established that ground water under the site is contaminated with ARSENIC, CHROMIUM, ZINC, and BARIUM. Six private and industrial wells for drinking water in the area are contaminated. Status (June 1984): EPA is considering various alternatives for the site.

    Sources of Contamination:
    • Waste pile
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  • Threats and Contaminants
    Elevated levels of the VOLATILE ORGANIC COMPOUND (VOC), TRICHLOROETHYLENE (TCE), CHROMIUM, ZINC, ARSENIC, and BARIUM were found in site groundwater samples collected in 1981, by GMC and the Wisconsin Department of Natural Resources (WDNR). Groundwater resources underlying the site were found to be contaminated with HEAVY METALS including IRON, MANGANESE, CHROMIUM, and ARSENIC, as well as low levels of VOCS.  More...

    Contaminants Detected

    Air Soil Other

    Groundwater and Drinking Water

    Were drinking water wells shut down due to contamination? No
    Are drinking water wells potentially threatened? No
    Aquifer discharges into: A drinking water aquifer
    Population served by water wells in the aquifer: 1 - 24
    List ground water uses.
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  • Pre-Cleanup Rankings
    EPA Hazard Ranking System scores for WHEELER PIT:

    Less Hazard National Average More Hazard
    0%         50%         100%

    Overall site:
    Ground water migration:

    Rank Superfund sites in the U.S., WISCONSIN, or in ROCK County by EPA Hazard Ranking Scores.

    *Note: EPA's Hazard Ranking System is designed to screen and prioritize sites for the Superfund program, based on limited data available at time of listing. These scores are not based on a comprehensive risk assessment of the site and do not reflect conditions after initiation of cleanup work.
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  • Site Information
    Site Name: WHEELER PIT
    EPA ID: WID980610620
    Address: CO TRK O & CO TRK J
    JANESVILLE, WI 53545
    Other Names: WHEELER PIT
    Site Ownership: Other
    Category of Site: Industrial Waste Treatment
    Date of Final Listing on the NPL: September 21, 1984
    List Standard Industrial Classifications (SIC) associated with current and past activities at the WHEELER PIT Superfund site.
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  • Potentially Responsible Party (PRP) Involvement
    Number of PRPs currently associated with this site: 2
    Hazardous waste received from off-site generators/transporters? Yes
    Number of past and present PRPs who contributed less than 1% of the waste: 0
    Number of owners/operators which are also municipalities: 0

    List Potentially Responsible Parties identified by U.S. EPA as associated with the WHEELER PIT Superfund site.
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