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Table 1 <br /> SUMMARY OF GROUNDWATER LEVELS AND CHEMICAL ANALYSIS RESULTS <br /> May 21,2004 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change m TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water Elevation 82603 benzene Xylenes 8021B 8260B <br /> Elevation <br /> (feet) (feet) (feet) (feet) (feet) (9911) (9911) (41) (µg11) (µg/1) {µ9f l) (µg11) (µ91l) <br /> MW-1 <br /> 05/21/04 500 1437 000 -937 046 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 050 <br /> MW-3 <br /> 05/21/04 568 1513 000 -945 047 — M)<0000 ND<100 ND<100 ND<100 ND<200 -- ND<100 <br /> MW-4 <br /> 05/21/04 621 1550 000 -929 037 -- 51 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 28 <br /> MW-5 <br /> 05/21/04 5 63 1498 000 -935 037 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 050 <br /> MW-6 <br /> 05/21/04 528 1445 000 -917 036 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 079 <br /> MW-7 <br /> 05/21/04 569 15 18 000 -949 045 -- ND<10000 ND<100 ND<100 ND<100 ND<200 -• ND<l00 <br /> MW-8 <br /> 05/21/04 479 1400 000 -921 035 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<0 50 <br /> MW-9 <br /> 05/21/04 426 1396 000 -970 045 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND< 0 -- ND<0 50 <br /> MW-10 <br /> 05/21/04 406 1348 000 -942 033 -- ND<50 ND<O 50 ND<0 50 ND<0 50 ND<1 0 - ND<0 50 <br /> MW-11 <br /> 05/21/04 518 1876 000 -1358 -105 — ND<250 ND<2 5 ND<2 5 ND<2 5 ND<5 0 -- 45 <br /> MW-12 <br /> 05/21/04 642 1572 000 -930 042 — ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 10 <br /> MW-13 <br /> 05/21/04 438 1403 000 -965 042 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 <br /> 11192 Page 1 of 1 <br />