Guaranteed fixed price remediation of TCE, PCE and VC in soil and bedrock under an active manufacturing facility confidential client Greensburg, IN

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Courtesy of TRS Group, Inc.

TRS Group, Inc. (TRS), as a subcontractor to St. John, Mittelhauser and Associates (SMA) provided a guaranteed fixed price remediation of trichloroethene (TCE), tetrachloroethene (PCE) and vinyl chloride (VC) in soil using Electrical Resistance Heating (ERH) at a confidential site located in Greensburg, IN. Unique aspects of this project included: Operation of one ERH system to treat four distinct and separate source areas. Design of eleven different custom electrodes to match the contaminant profile in the four treatment areas. The contaminants of concern extended into bedrock in two of the source areas, requiring an electrode design and installation technique to treat the overburden soil and bedrock simultaneously. Half of the system was installed under an active manufacturing facility. The total treatment volume was 20,611 cubic yards. The entire ERH system was installed in four months. The full system operated for six months and achieved the guaranteed remediation goals. The remedial goals at the site were to reduce TCE and VC soil concentrations to the 95% upper confidence limit (UCL) of 13 mg/kg and 1 mg/kg, respectively. The PCE remediation goal was 23.8 mg/kg in soil.

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