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07 February 2001 AGE-NC Project No 95-0130 Page 4of8 to 53 feet bsg, 83 to 86 feet bsg, 112 to 115 feet bsg and 134 to 137 feet bsg at concentrations as high as 79µg/1 The greatest benzene concentration was detected in the sample collected between 50 and 53 feet bsg at a concentration of 51 µg/1 ' MTBE was detected in four water samples collected from P-7 at depths of 43 to 46 feet bsg, 73 to 76 feet bsg, 101 to 104 feet bsg and 129 to 132 feet bsg at concentrations as high as 87 µg11, in four ' water samples collected from P-8 at depths of 50 to 53 feet bsg, 83 to 86 feet bsg, 112 to 115 feet bsg and 134 to 137 feet bsg at concentrations as high as 900 4g11, in two water samples collected from P-9 at depths of 44 to 47 feet bsg and 83 to 86 feet bsg at concentrations of 2 2 and 5 8 4g/1, ' respectively, and in four water samples collected from P-10 at depths of 29 to 32 feet bsg, 59 to 62 feet bsg, 82 to 85 feet bsg and 133 to 136 feet bsg at concentrations as high as 37 µg11 ' 1,2-Dichloroethane (1,2-DCA) was detected in one water sample collected from P-8 at a depth of 112 to 115 feet bsg at a concentration of 2 9 µg/l ' Tetrachloroethene (PCE) was detected in four water samples collected from P-7 at depths of 43 to 46 feet bsg, 73 to 76 feet bsg, 101 to 104 feet bsg and 129 to 132 feet bsg at concentrations as high • as 1,600 µg11, in four water samples collected from P-8 at depths of 50 to 53 feet bsg, 83 to 86 feet bsg, 112 to 115 feet bsg and 134 to 137 feet bsg at concentrations as high as 1400<<g/1, in three Nvater samples collected from P-9 at depths of 44 to 47 feet bsg, 63 to 66 feet bsg and 83 to 86 feet bsg at concentrations as high as 930 ug/l, and in four water samples collected from P-10 at depths of 29 to 32 feet bsg, 59 to 62 feet bsg, 82 to 85 feet bsg and 108 to 1 I I feet bsg at concentrations as high as 990 µg1] Tnchloroethene (TCE) was detected in two water samples collected from P-7 at depths of 43 to 46 feet bsg and 73 to 76 feet bsg at concentrations of 11 and 27µg/l, respectively, In one water sample ' collected from P-8 at a depth of 50 to 53 feet bsg at a concentration of 28 µg/1, and in one water sample collected from P-10 at a depth of 59 to 62 feet bsg at a concentration of 19 ,ug/l ' 1,2-Dichloroethene (1,2-DCE) was detected In two water samples collected from P-7 at depths of 43 to 46 feet bsg and 73 to 76 feet bsg at concentrations of 4 6 and 14,ug/l, respectively, In one water sample collected from P-8 at a depth of 50 to 53 feet bsg at a concentration of 17 ,ug/l, and In one ' water sample collected from P-10 at a depth of 59 to 62 feet bsg at a concentration of 10 �,g/l No other petroleum hydrocarbon constituents or fuel oxygenated compounds were detected by the laboratory analyses The laboratory reports (Castle Analytical Laboratory Reference No 3387, 3389, 3402, 3404 and McCampbell Analytical Inc Lab ID's 56428 through 56431, 56432 through 56435, 56688 through 56692 and 56926 through 56930) and chain-of-custody forms are presented In ' Appendices B, C, D and E Analytical results of the ground water samples are summarized In Table 1 analytical results of CPT "grab" ground water samples collected In December 2000 and ' ldvanced GeoFn[rollnlcntdl Inc 2