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Table 1 <br /> SUMMARY OF GROUNDWATER LEVELS AND CHENUCAL ANALYSIS RESULTS <br /> February 23,2004 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change in TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water Elevation 8260B benzene Xylenes 8021B 8269E <br /> Elevation <br /> (feet) (feet) (feet) (feet) (feet) (ug/1) (µg/1) (µg/1) (µg11) (9911) (µg/1) (µg/1) (µg/1) <br /> MW-1 <br /> 2/23/04 500 1483 000 -983 135 ND<100 ND<1 0 ND<1 0 ND<1 0 ND<2 0 ND<4 0 <br /> MW-3 <br /> 2/23/04 5 68 1560 000 -992 136 ND<1Q600 ND<100 ND<100 ND<100 ND<200 ND<400 <br /> MW-4 <br /> 2/23/04 621 15 87 000 -966 250 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<I 0 20 <br /> MW-5 <br /> 2/23/04 5 63 1535 000 -972 136 ND<50 ND<0 50 068 ND<0 50 17 40 <br /> MW-6 <br /> 2/23/04 5 28 1481 000 -953 148 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 3 1 <br /> MW-7 <br /> 2/23/04 5 69 15 63 000 -994 I 34 NDG0000 ND<100 ND<100 ND<100 ND<200 ND<400 <br /> MW-8 <br /> 2/23/04 479 1435 000 -956 148 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<2 0 <br /> MW-9 <br /> 2123/04 426 1441 000 -10 15 131 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<2 0 <br /> MW-10 <br /> 2/23/04 406 13 81 000 -975 148 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<2 0 <br /> MW-11 <br /> 2/23104 5 18 1771 000 -1253 180 260 ND<2 5 35 ND<2 5 67 48 <br /> MW-12 <br /> 2/23/04 642 16 14 000 -972 143 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<2 0 <br /> MW-13 <br /> 2/23/04 438 1445 000 -1007 1 32 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 ND<2 0 <br /> 11192 Page 1 of I <br />