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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> May 1990 Through May 2005 <br /> Former BP Ott 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 8260B benzene Xylenes 8021 B 8260B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (µg11) (µg11) (µg/1) (µg11) (µg11) (µg/1) (µg11) (µg/1) <br /> MW-4 continued <br /> 7/14/2000 675 13 02 000 -627 129 98 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 290 -- -- <br /> 10/26/2000 675 1459 000 -784 -157 190 -- 2 1 9 07 32 1000 -- -- <br /> 1/16/2001 675 1441 000 -766 0 18 400 -- ND<0 5 ND<0 5 ND<0 5 ND<6 5 510 -- -- <br /> 4/12/2001 675 1297 000 -622 144 400 -- ND<0 5 ND<0 5 ND<0 5 ND<l 5 544 -- -- <br /> 7/23/2001 675 1468 000 -793 -171 440 -- ND<0 5 ND<0 5 ND<0 5 ND<l 5 610 -- -- <br /> 8/16/2001 621 1507 000 -986 -093 -- -- -- -- _- <br /> 11/9/2001 621 1604 000 -983 -097 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 530 470 ND<50 <br /> 12/14/2001 621 15 86 000 -965 0 18 650 ND<0 5 ND<0 5 ND<0 5 ND<1 0 612 -- <br /> 1/10/2002 621 1400 000 -779 1 86 470 -- ND<2 5 ND<2 5 ND<2 5 ND<5 0 383 -- <br /> 2/18/2002 621 1392 000 -771 008 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 44 55 ND<100 <br /> 5/31/2002 621 1412 000 -791 -020 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 64 ND<100 <br /> 8/8/2002 621 15 48 000 -927 -136 -- 220 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- 270 ND<20 <br /> 11/15/2002 621 1685 000 -1064 -137 150 ND<0 50 067 ND<0 50 064 -- 150 ND<100 <br /> 1/3/2003 621 15 79 000 -958 106 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 130 ND<100 <br /> 5/14/2003 621 1493 000 -872 086 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- 19 ND<100 <br /> 8/14/2003 621 1651 000 -1030 -158 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 42 ND<100 <br /> 11/26/2003 621 1837 000 -1216 -186 -- 130 ND<0 50 070 ND<0 50 ND<l 0 -- 71 ND<100 <br /> 2/23/2004 621 15 87 000 -966 250 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 20 ND<100 <br /> 5/21/2004 621 1550 060 -929 037 - 51 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 28 ND<5 0 <br /> 8/10/2004 621 1673 000 -1052 -123 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 12 ND<5 0 <br /> 11/24/2004 621 1727 000 -1106 -054 -- 54 ND<0 50 ND<0 50 ND<0 50 ND<l 0 54 ND<5 0 <br /> 2/25/2005 621 1529 000 -907 1 99 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 27 ND<5 0 <br /> 5/27/2005 621 14 13 000 -792 1 I5 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 33 ND<5 0 <br /> MW-5 <br /> 11192 Page 7 of 19 <br />