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31 July 2000 <br /> AGE-NC Project No 95-0130 <br />' Page 4 of 9 <br /> to 78 feet bsg, 89 to 92 feet bsg and 102 to 105 feet bsg at concentrations as high as 840 ,ug/l, from <br /> CPT-2A at depths of 84 to 87 feet bsg and 101 to 104 feet bsg at concentrations as high as 250 gg/l <br /> and from CPT-3 at depths of 64 to 67 feet bsg at concentrations as high as 1 7 µg/1 The greatest <br />' benzene concentration detected in the sample collected from CPT-2A at depths between 84 and 87 <br /> feet bsg at a concentration of 250 µg/l <br />' MTBE was detected by EPA Method 8020 in water samples collected from CPT-IA at depths of 89 <br /> to 92 feet bsg and 102 to 105 feet bsg at concentrations as high as 170 ,ug/l and from CPT-2A at <br /> depths of 84 to 87 feet and 101 to 104 feet bsg at concentrations as high as 22 ,ug/l <br />' EDB and 1,2-DCA were not detected from laboratory analysis of "grab"ground water samples The <br /> laboratory reports (McCampbell Analytical Inc Lab I D 35856 through 35859 and 35862 through <br />' 35866) and chain-of-custody forms are presented in Appendix B Analytical results of the ground <br /> water samples are summarized in Table 2, analytical results of CPT "grab" ground water samples <br /> and monitoring well ground water samples collected on 31 March 2000 are depicted in cross <br />' sectional views A A'and B-B'(Figures 5 and 6) <br /> 2 6 LABORATORY RESULTS OF SOIL SAMPLES <br /> A total of three soil samples were collected from borings CPT-lA and CPT-2A and submitted for <br /> laboratory analysis for constituents noted above <br />' TPH-g was detected in a soil sample collected from CPT-lA at a depth of 86 feet bsg at a <br /> concentration of 6 2 milligrams per kilogram (mg/kg) and from boring CPT-2A at a depth of 70 feet <br /> bsg and at a concentration of 1 1 mg/kg <br />' Various BTEX compounds were detected in the soil sample collected from CPT-IA at a depth of <br /> 86 feet bsg at concentrations as high as 0 95 mg/kg and from boring CPT-2A at depths of 70 and 80 <br />' feet bsg at concentrations of 0 057 and 0 011 mg/kg, respectively The greatest benzene <br /> concentrations were detected in the soil sample collected from CPT-lA at a depth of 86 feet bsg at <br /> a concentration of 0 12 mg/kg <br /> MTBE, EDB and 1,2-DCA were not detected in any soil samples collected from bonngs CPT-1A <br /> or CPT-2A Analytical results of the soil samples are summarized in Table 1 The laboratory reports <br />' (McCampbell Analytical Inc Lab I D 35857, 35860 and 35861) and chain-of-custody forms are <br /> presented in Appendix B Analytical results of soil boring and UST removal soil samples are <br /> depicted in cross sectional views A-A ' and B-B'(Figures 7 and 8) <br /> Advanced GeoFnvironmental,Inc <br />