Immediate remedial activities included excavation of approximately 250 tons of impacted soil adjacent to the pipeline. In addition to the excavation activities, RCC initiated remedial investigation activities, which included a rapid assessment of down-gradient subsurface impact by installing approximately 30 shallow temporary wells to delineate the extent of light non-aqueous phase liquids (LNAPL) in the subsurface. Based on the results of this rapid assessment, and within one week of the release, RCC permitted, installed and began operation of a total phase extraction (TPE) remediation system at the site for treatment of LNAPL, soils and groundwater.

The TPE system was operated continuously for a period of three (3) months at the site. During this operation period, the remedial goals of the system were achieved. These goals included the removal of all LNAPL, the reduction of soil impact to below levels of regulatory concern, and the reduction of groundwater concentrations to levels conducive for natural attenuation to occur within a short time period.