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Site Background Information: Cherokee Truck Stop AGE-NC Project No. 97-0312 Page 6 of 9 • 30 July 2008 - pilot borings were advanced at the site using a CME-75 truck mounted drill rig to advance 8-inch or 12-inch diameter:hollow-stem augers to total depths of 30 feet below surface grade (bsg). Pilot borings VW1, VW2 and VW3 were completed as soil vapor wells (VW-1, VW-2 and VW-3)using 4-inch or 2-inch diameter polyvinylchloride (PVC) casing with a 0.030-inch slotted screen installed from 10 feet to 30 feet bsg. Filter pack (#3 sand) was installed from total depth to approximately two feet above the slotted screen. A total of 18 soil samples were analyzed. TPH-g , TPH-d, and two or more BTEX compounds were reported in all soil samples collected from boring V1 at maximum concentrations of 670 mg/kg TPH-g (V1-20), 8,600 mg/kg TPH-d (V1-25), 5 mg/kg benzene (V1-25), 70 mg/kg toluene (V1-25), 49 mg/kg ethylbenzene (V1-25), and 130 mg/kg total xylenes (V1- 25). TAME was reported in V1-5 at a concentration of 0.11 mg/kg. No other fuel oxygenates were reported in any of these samples. TPH-g and TPH-d were reported in two out of six samples collected from boring VW2 at maximum concentrations of 530 mg/kg and 7,000 mg/kg, respectively (V2-5). BTEX compounds and fuel oxygenates were not reported in any of these samples. TPH-g was reported in four out of six samples collected from boring V2 at a maximum concentration of 540 mg/kg (V2-5). TPH-d was reported in five out of six samples collected at a maximum concentration of 6,400 mg/kg (V3-5). BTEX compounds and fuel oxygenates were not reported in any of these samples. Advanced GeoEnvironmental,Inc.