Why the technology was selected:
SVE is a cost-effective technology for removing volatile organic compounds (VOCs) from permeable, unsaturated soils.

Date implemented:
January 11, 2000

Final remediation design:
The soil vapor extraction (SVE) system utilized 14 horizontal extraction wells, four vertical vapor-inlet wells, and one horizontal vapor-inlet well. SVE wells were installed in the parking lot at the rear of the facility (service entrance) and outside the west wall of the facility. The four vertical vapor-inlet wells were installed through the facility floor slab and the horizontal vapor-inlet well was installed outside the east wall of the building. Depth: SVE wells 3 ft bgs; vapor-inlet wells 3 ft bgs Screen intervals 15-35 ft Radius of influence: > 8 ft Blower: 10 hp capacity, 300 cfm at design vacuum of 70 in. w.c. Flow rate: 289 cfm at vacuum of 28 in. w.c. Emissions treatment: 2 - 400 lb granular activated carbon (GAC) canisters The system operated for five and one-half months and was shut down on July 25, 2000.

Results to date:
Confirmatory soil sampling showed that the contaminant concentrations in soils were below soil cleanup target leachability levels. The SVE system is estimated to have removed 1.64 lbs of VOCs. Approximately 236 tons of soil were excavated during SVE System intallation. An estimated 0.55 lbs of PCE was contained in the excavated soil. The SVE system has been decomissioned. The last two groundwater monitoring events, conducted in April and August 2000, did not detect any contaminants in groundwater in concentrations exceeding regulatory MCLs. A Site Rehabilitation Completion Order has been issued for this facility. Facility was delisted 11/27/2000 and all wells have been properly plugged and abandoned by a State of Florida licensed well driller.

Cost to Design and Implement:
$159,717 (all technologies)

Date implemented:
January 11, 2000

Cost to Design and Implement:
$159,717 (all technologies)