Subsurface investigations at this operating dry cleaner site revealed elevated levels of PCE and TCE in the site soils and groundwater (perched aquifer). Soil remediation was accomplished via over-excavation in June of 1998. Accelerated bioremediation using HRC was selected to treat the groundwater contamination. The HRC application approach was chosen because it minimized disturbance to site operations. Most importantly, the site was granted closure status 17 months after initial HRC treatment.