TRS Group, Inc.

Source area remediation of PCE in soil Fair Lawn, New Jersey

Courtesy of TRS Group, Inc.

TRS Group, Inc. (TRS) was retained by Anderson Mulholland and Associates, Inc. (AMAI) to perform an Electrical
Resistance Heating (ERH) remediation of DNAPL in soil at the former Topps Dry Cleaners property in Fair Lawn,
NJ. The remedial goal of this project was a reduction of tetrachloroethene (PCE) in soil to less than 1 milligram per kilogram (mg/kg) in every soil sample. Final confirmatory soil sampling indicated that all soil samples were below 1 mg/kg PCE and average soil concentrations were reduced to less than 0.1 mg/kg PCE throughout the treatment area. The PCE concentrations were reduced by 99.9% from an average pre-treatment concentration of 31 mg/kg to an average post-treatment concentration of 0.035 mg/kg. A project first for TRS in New Jersey, ERH was shown to be
highly effective at remediating the bedrock/Passaic formation. Although, the principle focus of this remediation was the reduction of PCE in soil, the average concentration of PCE in groundwater was reduced by 98%.