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y <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through November 2005 <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 8260E benzene Xylenes 8021B 8260B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (µgli) (µg/1) (µg11) (µg11) {µg11) (µg/1) (µ41) (µg11) <br /> MW-7 contmued <br /> 04/21/95 621 2461 000 -1840 197 53 -- 0 65 ND<0 50 14 14 -- -- -- <br /> 07/19/95 621 23 74 000 -1753 087 81 -- 059 ND<0 50 0 55 ND<1 0 -- -- -- <br /> D 07/19/95 621 23 74 000 -1753 0 87 82 -- ND<0 50 ND<0 50 0 54 ND<1 0 -- -- -- <br /> P 10/20/95 6 21 2415 000 -1794 -041 110 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 160 -- Pre-purge <br /> 10/20/95 621 24 15 000 -1794 -041 89 -- ND<0 50 ND<0 50 ND<0 50 ND<l 0 110 -- -- <br /> P 04/23/96 621 2078 000 -1457 3 37 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 337 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<1 ND<1 ND<1 ND<10 -- -- <br /> D 07/12/96 621 21 18 000 -1497 -040 ND<50 -- ND<0 5 ND<1 ND<1 ND<1 ND<10 -- -- <br /> 10/18/96 621 2070 000 -1449 048 220 -- ND<0 5 ND<1 0 ND<1 0 ND<1 0 200 -- -- <br /> D 10/18/96 621 2070 000 -1449 048 240 -- ND<0 5 ND<1 0 ND<1 0 ND<l 0 200 -- -- <br /> 02/26/98 621 1300 000 -679 770 120 -- ND<0 5 ND<l 0 ND<l 0 ND<l 0 95 -- -- <br /> 07/07/98 621 1220 000 -599 080 1800 -- ND<0 5 ND<l 0 ND<1 0 ND<1 0 2400 -- -- <br /> 01/19/99 621 14 33 000 -812 -213 3200 -- ND<1 0 ND<1 0 ND<l 0 ND<l 0 3800 -- -- <br /> 07/14/99 621 13 13 000 -692 120 -- -- -- -- -- -- -- <br /> 07/26/99 621 1330 000 -709 -017 21000 -- ND<l 0 ND<1 0 7 2 2 4 18000 -- -- <br /> 10/07/99 621 1464 000 -843 -134 33000 -- ND<l 0 ND<l 0 1 1 ND<1 0 19000 -- -- <br /> 01/20/00 621 15 15 000 -894 -051 200 -- 1 6 ND<0 5 ND<0 5 ND<0 5 25000 -- -- <br /> 04/11/00 621 1540 000 -919 -025 2500 -- 3 3 ND<0 5 ND<0 5 0 53 63000 -- -- <br /> 07/14/00 621 1251 000 -630 2 89 2500 3 8 ND<0 5 4 1 1 55000 -- -- <br /> 10/26/00 621 14 15 000 -794 -164 2300 -- 2 8 ND<0 5 ND<0 5 ND<0 5 69000 -- -- <br /> 01/16/01 621 1403 000 -7 82 012 19000 -- 455 173 ND<0 5 115 30300 -- -- <br /> 04/12/01 621 1272 000 -651 131 120000 -- 353 ND<2 5 ND<2 5 ND<7 5 147000 -- -- <br /> 07/23/01 6 21 14 16 000 -795 -144 180000 -- ND<50 ND<50 ND<50 ND<150 233000 -- -- <br /> 11192 Page 14 of 20 <br />