Active Industrial Facility in Southern California Impacted by PCE and TCE

Chlorinated solvent usage at a former printing facility in Orange County, California (Figure 1) contaminated the soil, soil vapor, and groundwater with tetrachloroethene (PCE) and trichloroethene (TCE), requiring remediation. Much of the contamination (i.e., the source area) was identified beneath the site building of an active business. Soil vapor sampling completed at the site indicated a vapor intrusion risk due to the contaminant release.