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i <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through May 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) (µg/1) 61g/l) (µg/1) (µg11) (µg11) (µg/1) (µg/1) (µg11) (11g11) <br /> MW-7 continued <br /> 12/9/1992 621 3233 000 -26 12 -0 35 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- -- <br /> D 12/9/1992 621 3233 000 -26 12 -035 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 3/11/1993 6 21 2985 000 -23 64 248 110 -- 3 1 0 8 2 2 14 - -- - <br /> 6/15/1993 621 2774 000 -2153 2 11 71 -- 14 0 8 2 8 2 4 -- -- -- <br /> D 6/15/1993 6 21 27 74 000 -2153 2 11 120 -- 1 9 ND<0 5 5 9 4 6 - -- -- <br /> 9/15/1993 6 21 2816 0 00 -2195 -042 170 -- 1 2 ND<0 5 5 8 2 5 -- -- <br /> D 9/15/1993 621 28 16 000 -2195 -042 160 -- 1 ND<0 5 55 2 6 -- -- -- <br /> 12/22/1993 6 21 2803 000 -2182 0 13 110 -- 19 1 3 38 10 -- -- __ <br /> 4/1/1994 6 21 27 15 000 -20 94 088 340 - 2 5 1 30 43 496 -- - <br /> D 4/1/1994 621 27 15 000 -20 94 088 330 -- 2 6 0 9 28 42 -- -- -_ <br /> 7/27/1994 6 21 2721 000 -21 00 -006 72 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 28 55 -- -- <br /> 11/30/1994 621 2758 000 -21 37 -037 140 ND<0 5 08 44 8 3 64 -- <br /> D 11/30/1994 6 21 0 00 __ <br /> 27 58 -21 37 -0 37 140 0 6 1 5 9 3 69 -- -- <br /> 2/15/1995 621 2658 0 00 -2037 100 90 -- ND<0 50 ND<0 50 2 1 1 7 -- -- - <br /> 4/21/1995 621 2461 000 -1840 197 53 -- 0 65 ND<0 50 14 14 -- -- -- <br /> 7/19/1995 621 2374 000 -1753 087 81 -- 059 ND<0 50 0 55 ND<1 0 -- -- -- <br /> D 7/19/1995 621 23 74 0 00 -1753 0 87 82 -- ND<0 50 ND<0 50 0 54 ND<1 0 -- -- -- <br /> P 10/20/1995 621 24 15 000 -1794 -041 110 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 160 -- -- Pre-purge <br /> 10/20/1995 6 21 2415 000 -1794 -041 89 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 110 -- -- <br /> P 4/23/1996 621 2078 000 -1457 337 ND<500 ND<0 5 ND<0 5 ND<0 5 ND<0 5 150 -- - Pre-purge <br /> 4/23/1996 621 2078 000 -1457 337 ND<500 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 160 -- -- <br /> 7/12/1996 6 21 21 18 000 -1497 -040 ND<50 -- ND<0 5 ND<1 ND<l ND<1 ND<10 -- - <br /> D 7/12/1996 6 21 21 18 000 -1497 -040 ND<50 -- ND<0 5 ND<1 ND<1 ND<l ND<10 - -- <br /> 10/18/1996 621 2070 000 -1449 048 220 -- ND<0 5 ND<1 0 ND<l 0 ND<1 0 200 - - <br /> 11192 Page 13 of 19 <br />