South LA: SVE Case Study (C3 Technology)


Courtesy of GEO Inc

An active industrial facility in South Central Los Angeles was impacted by tetrachloroethylene (PCE) and trichloroethylene (TCE; former staging area degreasing) operations as a part of its operations. A phased approach to soil vapor extraction (SVE) remediation was employed: the goal of Phase I was to attain high contaminant mass removal rates with very high VOC vapor concentrations typically observed in the steep decay portion of influent concentration curve, and the goal of Phase II was to achieve mass removal rates typical of lower concentrations observed in the asymptotic component of the influent concentration decay curve. Based on extensive site investigation and testing, the site was a good candidate for SVE for residual mass recovery after excavation of the primary source area.

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