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Table 2 IIISTORIC GROUNDWATER LEVELS AND CHEMICAL ANALYSIS RESULTS August 2003 Through February 2004 Former BP Otl 11192 Comments Date TOC Depth to LPH Ground- Change in nze TPH-G TPPH Bene TolueneEthyl- Total benzene Xylenes 80 BE 882 0B Sampled Elevation Water Thickness water Elevation 8260B Y Elevation (feet) (feet) (feet) (feet) (feet) (µ81I) (µg/l) W/1) (µ9n) (µms) (µ8�) (µ8�) (µPQ) MW-1 8/14/03 500 1531 0 00 -1031 -- ND<250 ND<2 5 ND<2 5 ND<2 S NDcS 0 MX 11/26/03 500 1618 000 -1118 -087 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 Nl?<2 0 0 2/23104 500 1483 000 -983 135 ND<100 ND<10 ND<1 0 ND<10 ND<2-0 ND<4 0 MW-3100 5 68 1604 000 -1036 -- rro<10000 ND<100 ND<100 ND<100 NDc20D ND<400 11/26/03 568 1696 000 -1128 -092 X10000 ND<100 ND<100 ND<100 ND<200 ND<400 2123/04 568 1560 0 OD -992 136 ND<l0000 ND<100 ND<100 ND<100 ND<200 ND<400 r MW-4 8114103 621 1651 000 -1030 -- ND<50 ND<O 50 ND<O SQ ND<0 50 ND<1 0 42 11/26/03 621 1837 000 4216 -186 130 ND<O 50 070 ND<O 50 ND<1 0 71 2/23104 621 1587 000 -966 250 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<10 20 MW-5 23 8114103 563 1581 000 -1018 -- 61 ND<O 50 ND<O SO NDQ}50 ND<F 0 11/26/03 563 1671 000 -1108 -090 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<t 0 69 2123104 563 1535 000 -972 136 ND<50 ND<O 50 068 ND<O 50 17 40 MW-6 8114103 528 1543 000 -1015 — ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 ND4 11/26/03 528 1629 000 -1101 -086 50 ND<O 50 ND<0.50 ND<O 50 ND<1 0 733 2123/04 528 1481 0 00 -953 148 ND<50 ND<0 50 ND<O 50 ND<0 50 ND<l 0 3 1 MW-7 8114/03 5 69 16 07 0 00 -10 38 — lap<looao ND<100 ND<100 ND<100 ND<200 ND<400 11/26/03 569 1697 000 -1128 -090 ND<20000 ND<200 ND<200 ND<200 ND<400 N1]<800 2123104 569 1563 000 -994 134 rm<tom ND<100 ND<100 ND<100 ND<200 ND<400 MW-8 8114103 479 1496 000 -1017 — ND<50 ND<O SD ND<O 50 ND<Q SD ND<1 0 ND<2 0 Page 1 of 2 11182 s