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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through February 2005 Former BP Oil 11192 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE TBA Comments Sampled Elevation Water Thickness water In 8260B benzene Xylenes 8021 B 8260B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/l) (11g11) (pg/1) (µg11) (µg/l) (110) (pg/1) (µgll) (µg11) MW-5 continued 01/20/00 6 15 1442 000 -827 -072 - - - - -- - - 04/11/00 6 15 1467 000 -8 52 -0 25 - -- -- -- -- - -- 07/14/00 6 15 12 82 000 -667 1 85 - -- - -- - -- - - - 10/26/00 6 15 1401 000 -7 86 -1 19 - -- - -- -- -- - -- -- O M 6/01 6 15 13 86 000 -771 0 15 - -- - - -- -- -- 04/12/01 6 15 13 14 000 -699 072 -- - -- -- -- -- - - - 07/23/01 6 15 1404 000 -799 -090 -- -- - 08/16/01 563 1449 000 -886 -097 -- - -- - - 11/09/01 563 15 48 000 -9 85 -- ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<1 0 ND<20 12/14/01 563 1525 000 -9 62 023 - - - - - - - -- -- 01/10/02 5 63 13 89 000 -826 1 36 -- -- - - - -- -- - 02/18/02 5 63 13 38 000 -775 0 51 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 ND<100 05/31/02 5 63 13 61 000 -798 -023 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 ND<2 0 ND<100 08/08/02 5 63 1494 000 -931 -1 33 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 - ND<2 0 NDQO 11/15/02 563 16 12 000 -1049 -1 18 -- ND<50 ND<O 50 1 1 ND<O 50 065 -- 3 4 260 01/03/03 563 15 23 000 -960 0 89 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 ND<100 05/14/03 5 63 14 51 000 -8 88 072 -- ND<50 ND<O 50 ND<0 50 ND<O 50 ND<O 50 76 ND<100 08/14/03 563 15 81 000 -10 18 -1 30 61 ND<O 50 ND<O 50 ND<O 50 ND<1 0 23 ND<100 11/26/03 5 63 1671 000 -11 08 -090 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 6 9 ND<100 02/23/04 5 63 15 35 000 -972 1 36 -- ND<50 ND<O 50 068 ND<O 50 1 7 -- 4 0 ND<100 05/21/04 5 63 1498 000 -935 037 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 050 ND<5 0 08/10/04 5 63 16 19 000 -1056 -121 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 - 1 9 ND<5 0 I 11/24/04 5 63 1674 000 -11 11 -0 55 - ND<50 ND<0 50 ND<O 50 ND<O 50 Nil<1 0 - ND<O 50 5 0 02/25/05 5 63 14 72 000 -909 202 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 ND<5 0 11192 Page 9 of 18