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Table 2 ' HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through November 2004 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 Thielmess water in 8260E benzene Xylenes 8021B 8260E 82608 Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (14g/1) (µg11) (µg11) (µg/l) (µg/3) (µg11) (µg/1) MW-5 continued 07/14/00 6 15 1282 000 -667 195 -- 10/26/00 6 15 1401 000 4 86 -1 19 -- 01/16/01 6 15 1386 000 -771 0 15 — 04/12/0( 6 15 13 14 000 -699 072 -- 07/23/01 615 14 04 000 -789 -090 08/16/01 563 1449 000 -886 -097 11/09/01 5 63 1548 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 5 63 1525 000 -962 0 23 01/10/02 563 13 89 000 -826 136 02/18/02 5 63 1338 000 -7 75 051 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 ND<100 05/31/02 563 1361 000 -798 -0 23 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<2 0 ND<100 08/08/02 563 1494 000 -9 31 -133 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 -- ND<2 0 ND<20 11/15/02 5 63 1612 000 -1049 -1 18 -- ND<50 ND<O 50 1 1 ND<O 50 0 65 -- 3 4 260 01/03/03 5 63 1523 000 -960 0 89 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 - ND<2 0 ND<100 05/14/03 5 63 1451 000 -888 0 72 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 -- 7 6 ND<100 08/14/03 5 63 15 81 000 -1018 -130 -- 61 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 23 ND<100 11/26/03 563 1671 000 -1108 -090 -- ND<50 ND<O 50 ND<0 50 ND<O 50 ND<1 0 - 6 9 ND<100 02/23/04 563 15 35 000 -972 136 — ND<50 ND<O 50 068 ND<O 50 17 -- 4 0 ND<100 05/21/04 5 63 1498 0 00 -935 0 37 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 - 050 ND<5 0 08/10/04 5 63 1619 000 -1056 -121 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 - 19 ND<5 0 11/24/04 563 1674 000 -11 11 -055 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 5 0 MW-6 08/05191 5 80 2982 000 -2402 -- ND -- ND ND ND ND -- -- — 08/15191 5 80 -- -• -- -- 11192 -- -- _t1192 Page 9 of 18