Predictions and Reality: Quantified Sustainability Evaluation of TCE Source Area Remediation Using EPA Performance Metrics

摘要

Groundwater at an active manufacturing facility on an 80-acre site in Portland, Oregon, was impacted by TCE and its degradation products. Operations at the facility began in 1980, and included the use of TCE from approximately 1980 to 1989. TCE and/or TCE-containing wastewater were released to the subsurface in the early 1980s, roughly between 1980 and 1984. In 2006, concentrations of TCE and cis-1,2-dichloroethene (DCE) in the release area ranged as high as 592,000 and 90,000 ug/L (respectively) at depths ranging from approximately 50 to 110 ft below ground surface (bgs).