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• • <br /> 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 Ethyl- Total MTBE MTBE TBA Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) Gig/1) (µg/1) (µg11) (µg/l) (pg/1) (µg11) (41) (µg/1) <br /> MW4 continued <br /> 01/20/00 675 1540 000 -865 -032 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 320 -- -- <br /> 04/11/00 6 75 1431 000 -756 109 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 6 4 -- -- <br /> 07/14/00 6 75 13 02 000 -627 129 98 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 290 -- <br /> 10/26/00 6 75 1459 0 00 -784 -1 57 190 -- 2 1 9 0 7 3 2 1000 -- -- <br /> 01/16/01 675 1441 000 -766 018 400 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 510 -- -- <br /> 04/12/01 675 1297 000 -622 1 44 400 -- ND<0 5 ND<0 5 ND<0 5 ND<l 5 544 -- - <br /> 07/23/01 675 1468 000 -793 -171 440 ND<0 5 ND<0 5 ND<0 5 ND<l 5 610 -- - <br /> 08/16/01 6 21 1507 000 -886 -0 93 -- -- -- -- -- <br /> 11/09/01 6 21 1604 000 -983 -097 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 530 470 ND<50 <br /> 12/14/01 6 21 15 86 000 -965 0 18 650 -- ND<0 5 ND<0 5 ND<0 5 ND<1 0 612 -- <br /> 01/10102 621 1400 000 -779 186 470 - ND<2 5 ND<2 5 ND<2 5 ND<5 0 383 -- -- <br /> 02/18/02 621 13 92 000 -771 008 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 44 55 ND<100 <br /> 05/31/02 621 1412 000 -791 -020 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 64 ND<100 <br /> 08/08/02 6 21 1548 000 -927 -136 -- 220 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- 270 ND<20 <br /> 11/15/02 6 21 1685 0 00 -1064 -137 150 ND<0 50 067 ND<0 50 0 64 -- 150 ND<100 <br /> 01/03/03 621 1579 000 -958 106 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 130 ND<100 <br /> 05/14/03 6 21 1493 000 -872 0 86 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 -- 19 ND<100 <br /> 08/14!03 621 1651 000 -1030 -158 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 42 l,D<100 <br /> 11/26/03 621 1837 000 -12 16 -186 -- 130 ND<0 50 070 ND<0 50 ND<l 0 -- 71 ND<100 <br /> 02/23/04 6 21 1587 0 00 -966 250 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 20 ND<100 <br /> 05/21/04 621 1550 0 00 -929 037 -- 51 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 28 ND<5 0 <br /> 08/10/04 6 21 1673 000 -1052 -123 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- 12 ND<5 0 <br /> 11/24/04 621 1727 000 -1106 -054 -- 54 ND<0 50 ND<0 50 NID<0 50 ND<l 0 -- 5 4 ND<5 0 <br /> 02/25/05 621 1528 000 -907 199 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- 2 7 ND<5 0 <br /> 11192 Page 7 of 20 <br />