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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through August 2005 <br /> Former BP Oil 11192 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethvl- Total M Bt %1TBE TBA Comments <br /> Sampled Elevation Water Thickness water in 8260E hen7ene Xylenes 8021 B 8260E 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (pg/1) (pg/1) (pg/1) (ug/1) (41) (µg/1) (µg/1) (µg/1) (µg/l) <br /> MW-7 continued <br /> 08/15/91 621 -- -- -- - <br /> 12/09/91 621 3136 000 -25 15 ND -- 19 ND 12 ND -- -- <br /> 03/09/92 6 21 30 15 000 -23 94 121 ND -- ND ND ND ND -- -- -- <br /> 06/19/92 6 21 30 19 000 -23 98 -004 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- -. <br /> 09/18/92 6 21 3198 000 -25 77 -179 90 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- - <br /> 12/09/92 6 21 3233 000 -26 12 -035 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 - -- <br /> D 12/09/92 6 21 3233 000 -2612 -035 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 03/11/93 621 2985 000 -23 64 248 110 -- 3 1 08 22 14 -- -- <br /> 06/15/93 6 21 2774 000 -21 53 2 11 71 -- 14 08 2 8 2 4 -- -- <br /> D 06/15/93 621 2774 000 -21 53 2 It 120 19 ND<0 5 5 9 4 6 -- -- - <br /> 09/15/93 621 2816 000 -21 95 -042 170 -- 12 ND<0 5 5 8 2 5 -- -- -- <br /> D 09/15/93 6 21 28 16 000 -2195 -0 42 160 - 1 ND<0 5 5 5 2 6 -- -- -- <br /> 12/22/93 621 2903 000 -2182 0 13 110 19 1 3 3 8 l0 -- -- <br /> 04/01/94 6 21 27 15 000 -20 94 0 88 340 -- 25 1 30 43 49 6 -- -- <br /> D 04/01/94 6 21 27 15 000 -20 94 088 330 -- 2 6 0 9 28 42 -- -- -- <br /> 07/27/94 6 21 2721 000 -2100 -006 72 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 2855 -11/30194 6 21 2758 000 -2137 -037 140 -- ND<0 5 0 8 4 4 83 64 -- -- <br /> D 11/30/94 6 21 2758 000 -21 37 -037 140 - 0 6 1 5 9 3 69 -- -- <br /> 02/15/95 6 21 2658 000 -2037 1 00 90 -- ND<0 50 ND<0 50 2 1 1 7 -- -- -- <br /> 04/21/95 621 2461 000 -1840 197 53 -- 065 ND<0 50 14 14 -- - <br /> 07/19/95 621 2374 000 -17 53 0 87 81 -- 059 ND<0 50 055 ND<1 0 -- -- -- <br /> D 07/19/95 621 23 74 000 -1753 0 87 82 ND<0 50 ND<0 50 054 ND<t 0 - -- -- <br /> P 10/20/95 6 21 24 15 000 -1794 -041 110 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 160 -- Pre-purge <br /> 10/20/95 6 21 24 15 000 -1794 -041 89 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 110 -- -- <br /> 11192 Page 13 of 20 <br />