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r a f f Fisco Warehouse; Site Background Information Page 4 of 5 Ground water samples CPT1-92-96 and CPT2-92-96 were collected from HU2; sample CPT3-92-96 was collected at the boundary between HU2 and HU3.TPH-g and TPH-d were detected in sample CPTI-92-96 at concentrations of 530 µg/1 and 98 µg/1, respectively. Toluene, ethylbenzene and total xylenes were detected in sample CPT1-92-96 at concentrations of 9.9 µg/I, 20 µg/i and 140 µg/l,respectively.No other target analytes were detected in the samples from HU2. Benzene and fuel additives were not detected at or above laboratory reporting limits in any of the ground water samples. The general count of heterotrophic organisms in soil sample CPTI-31 was 12.2 X 105 (colony-forming units/gram) cfu/g and the selective count was 2.1 X 105 cfu/g, which indicate a moderate population of organisms capable of gasoline metabolism. However,the nutrient concentrations are at moderate to high levels to sustain ongoing bioremediation; nitrates (NO3), phosphate (POO and ammonium (NH4) were detected in the sample at concentrations of 57.2 parts per million (ppm), 22 ppm and 28.38 ppm, respectively, indicating. The moisture content(MC) of the soil sample was 23%. On 14 January 2002, an 8-hour SVE pilot test was conducted at the site using vapor well VW-2, screened from 15 feet below surface grade(bsg)to 35 feet bsg as the extraction well. The pilot test was performed to provide SVE data prior to installation of a full scale remediation system TPH-g was detected in the soil gas/vapor samples(vapor samples)at concentrations ranging from 1,300 µg/l to 2,700 µg/1. Toluene, ethylbenzene and total xylenes were detected in the gas/vapor samples at concentrations as high as 47µg/1 toluene,30µg/1 ethylbenzene and 220 µg11 total xylenes. Benzene and MTBE were not detected at or above laboratory reporting limits in the gas/vapor samples. The SVE unit was operated at approximately 2,300 RPMs for the eight-hour test. The flow rate was measured between 25 cfin (standard cubic feet per minute) and 30 scfin for the eight-hour test. OV readings ranged from 108 to 363 ppm.Induced vacuum measured at the extraction well (VW-2)ranged from 54 to 72 inches of water. As expected, the greatest vacuum was measured in the observation point nearest the extraction well(VW-1),The lowest vacuum was measured in MW-6,approximately 66 feet north of the extraction point. The maximum vacuum measured at the observation points during the pilot test was plotted versus the distance from the extraction well. The effective radius of influence was determined by drawing a best-fit line though these data points to correlate distance to vacuum data.At a vacuum potential of 0.10 inches of water,the radius of influence is approximately 47 feet;at an induced vacuum potential of 1.0 inches of water, the radius of influence is approximately 30 feet; at 10.0 inches of water the radius of influence is approximately 13 feet. Based on the United States Environmental Protection Advanced GeoEnvirnnmental,Inc