Manufacturing Plant

Farallon was contracted for technical support by an insurance carrier covering the investigation and cleanup of a widespread groundwater plume of trichloroethene (TCE) associated with multiple releases from a manufacturing plant in Vancouver, Washington.  The contaminant plume extended beneath a residential neighborhood, posing a potential threat to potable water supply wells in the area and a vapor intrusion risk for nearby residences having a basement or subsurface crawl space.  Technical assistance provided by Farallon included development of indoor air sampling procedures and installation of subslab depressurization systems for residences where concentrations of TCE posed a potential health risk.  Farallon also attended public neighborhood association meetings where results from the indoor air sampling, investigation, and cleanup activity were presented.  Successful negotiation of a settlement on behalf of the insurance carrier was reached.