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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through August 2004 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments <br /> Sampled Elevation Water Thickness water in 82608 benzene Xylenes 802IB 8260B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/l) (µg11) (µg/1) (µg11) (µg11) (µg/1) (µg/1) (µg11) (µg11) <br /> D MW-7 continued <br /> D 07!19195 6 21 23 74 000 -17 53 000 82 ND<0 50 ND<0 50 054 ND<l 0 -- _ <br /> P 10/20/95 6 21 -- - -- -- 110 ND<0 50 ND<0 50 ND<0 50 ND<1 0 160 -- - Pre-purge <br /> 10/20/95 6 21 24 15 0 00 -1794 0 00 89 - ND<0 50 ND<0 50 ND<0 50 ND<l 0 110 - <br /> P 04/23/96 621 - - - ND<500 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 150 -- -- Pre-purge <br /> 04/23/96 621 2078 000 -1457 3 37 ND<500 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 160 -- -- <br /> 07/12/96 621 21 18 000 -1497 -040 ND<50 - ND<0 5 ND<l ND<1 ND<1 ND<10 - <br /> D 07/12/96 621 21 18 000 -1497 000 ND<50 -- ND<0 5 ND<l ND<I ND<1 ND<10 -- -- <br /> 10/18/96 621 20 70 000 -1449 000 220 - ND<0 5 ND<1 0 ND<1 0 ND<l 0 200 -- - <br /> D 10/18/96 621 2070 000 -1449 048 240 - ND<0 5 ND<1 0 ND<l 0 ND<l 0 200 - <br /> 02/26/98 621 1300 000 -679 770 120 - ND<0 5 ND<1 0 ND<1 0 ND<1 0 95 - <br /> 07/07/98 6 21 1220 000 -599 080 1800 -- ND<0 5 ND<1 0 ND<l 0 ND<l 0 2400 <br /> 01/19/99 621 1433 000 -8 12 -2 13 3200 ND<l 0 ND<1 0 ND<1 0 ND<l 0 3800 - -- <br /> 07/14/99 6 21 13 13 000 -692 1 20 <br /> 07/26/99 621 13 30 000 -709 -0 17 21000 ND<l 0 ND<1 0 7 2 2 4 18000 -- - <br /> 10/07/99 6 21 1464 000 -8 43 -1 34 33000 ND<l 0 ND<] 0 1 l ND<l 0 19000 - -- <br /> 01/20/00 6 21 15 15 000 -894 -051 200 -- 1 6 ND<0 5 ND<0 5 ND<0 5 25000 - -- <br /> 04/11/00 6 21 1540 000 -9 19 -025 2500 3 3 ND<0 5 ND<0 5 053 63000 - -- <br /> 07/14/00 621 12 51 000 -630 2 89 2500 -- 3 8 ND<0 5 4 l 1 55000 -- - <br /> 10126100 621 14 15 000 -794 -164 2300 28 ND<0 5 ND<0 5 ND<0 5 69000 --01/16/01 6 21 1403 000 -782 0 12 19000 -- 455 1 73 ND<0 5 1 15 30300 <br /> 04/12/01 6 21 1272 000 -651 1 31 120000 -- 353 ND<2 5 ND<2 5 ND<7 5 147000 - - <br /> 07/23/01 6 21 14 16 000 -795 -1 44 180000 -- ND<50 ND<50 ND<50 ND<150 233000 - - <br /> 08/16/01 5 69 1462 000 -893 -098 <br /> 11/09/01 5 69 15 58 0 00 -9 89 _ No<s 000 ND<50 ND<50 ND<50 ND<50 120000 110000 25,000 <br /> 11192 Page 13 of 18 <br />