Case Study #12 – Ventura, CA (Chlorinated Project) Scope of Work CalClean was contracted to install and operate a High Vacuum Soil Vapor Extraction (HVSVE) for a confidential client located in Ventura, CA. The subject site was developed as an active dry cleaner facility and subsurface soil were found to contain elevated concentrations of tetrachloroethylene (PCE), a common dry cleaning agent. A soil gas sample collected from 5 feet below grade contained PCE at a concentration of 3,600 µg/L and significantly exceeded the California Human Health Screening Level (CHHSL) of 0.6 µg/L for commercial property. Soil remediation using HVSVE was completed from March 5, 2014 to June 25, 2014 to reduce concentrations of PCE in the shallow soils to levels acceptable for closure by th

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