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I <br /> PREVIOUS SITE ASSESSMENTS <br /> • <br />' On 15 and 16 October 2002, three soil borings B1 though B3 were advanced to a depth of 35 feet <br /> below surface grade (bsg), utilizing a van-mounted Geoprobe 5400 direct-push probing unit <br /> equipped with 1 25-inch probing rods,for the collection and analysis of soil and`grab' groundwater <br /> I samples After probing to a depth of 25 feet bsg, ground water was found to be at approximately 22 <br /> feet bsg <br />' Soil boring B 1 was advanced in the northwest corner of the former UST excavation Soil boring B2 <br /> was advanced approximately five feet east of the former UST excavation and soil boring B3 was <br /> advanced approximately ten feet southwest of the former UST excavation <br />' A total of six soil samples were analyzed for the petroleum hydrocarbon products TPH-g was <br /> detected in soil samples collected from all three borings at a maximum concentration of 22,000 <br />' milligrams per kilogram (mg/kg), in sample B2-15 TPH-d was detected in soil samples collected <br /> from borings 131 and B2 at a maximum concentration of 7,500 mg/kg in sample B2-15 BTEX <br />' compounds were detected in soli samples collected from all three borings at maximum <br /> concentrations of 1 1 mg/kg,460 mg/kg,320 mg/kg and 1830 mg/kg,respectively,in sample B2-15 <br /> Lead was detected by EPA Method 6010B in one soil sample collected in boring B2 at a <br />' concentration of 59 mg/kg,in sample B2-15 No additional target analytes were detected at or above <br /> laboratory detection limits in the soil samples analyzed <br /> l <br /> A grab ground water sample was collected from each of the three bonngs on 15 and 16 October 2002 <br /> ie and were analyzed for the petroleum hydrocarbon products TPH-g was detected in ground water <br /> samples collected from each boring at a maximum concentration of 170,000µg/l in boring B2 TPH- <br />' d was detected in ground water samples collected from bonngs B1 and B2 at a maximum <br /> concentration of 23,000 p.g/l in boring B2 BTEX compounds were detected in ground water samples <br /> collected from all three borings at maximum concentrations of 550 ptg/1(B3),23,000µg/1(B 1),6,100 <br />' gg/l(B1) and 33,000 gg/1(B1), respectively 1,2-DCA was detected in ground water samples <br /> collected from all three borings at a maximum concentration of 54 gg/1 in sample B3 EDB was <br /> detected in ground water samples collected from all three bonngs at a maximum concentration of <br />' 190 µg/1 in sample B2 No additional target analytes were detected at or above laboratory detection <br /> limits in the ground water samples analyzed <br /> 1 <br /> 1 <br /> 1 <br /> I <br /> IAdvanced GeoEnvironmental,Inc <br /> 1 <br />