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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS May 1990 Through August 2004 Former BP Oil 11192 i Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 802113 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) (µg/1) (µg/1) (µg/1) (µg11) (µgA) (µg11) (µg11) MW-5 continued 04/11/00 6 15 1467 000 -852 -025 07/14/00 6 I5 1282 000 -667 195 10/26/00 6 15 1401 000 -786 -119 01/16/01 615 1386 000 -771 0 15 04/12/01 615 13 14 0 00 -699 072 07/23/01 61S 1404 000 -7 89 -090 08/16/01 563 1449 000 -886 -097 -- -- — -- -- -- -- -- 11/09/01 563 1548 000 -9 85 — ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<50 ND<10 12/14/01 5 63 1525 000 -962 023 01/10102 563 13 89 0 00 -826 136 02/18/02 $63 1338 000 -7 75 051 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<50 ND<2 0 05/31/02 5 63 1361 000 -798 -0 23 -- ND<50 ND<O 50 ND<O 50 ND<0 50 ND<1 0 -- ND<2 0 08/08/02 5 63 1494 000 -931 -- -- ND<50 ND<O 50 ND<0 50 ND<O 50 ND<0 50 -- ND<2 0 11/15/02 5 63 1612 000 -1049 -1 18 — ND<50 ND<O 50 11 ND<O 50 065 -- 3.4 01/03/03 563 1523 000 -960 0 89 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 05/14/03 563 1451 0 00 -888 072 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 -- 7 6 08/14/03 563 1581 000 -10 18 -130 -- 61 ND<O 50 ND<O 50 ND<0 50 ND<l 0 — 23 11/26/03 563 1671 000 -1108 -090 -- ND<50 ND<O 50 ND<O 50 ND<0 50 ND<l 0 — 6 9 02/23/04 563 1535 000 -972 136 — ND<50 ND<O 50 068 ND<O 50 17 -- 40 05/21/04 563 1498 000 -935 037 -- ND<50 ND<0 50 ND<0 50 ND<O 50 ND<l 0 -- 050 08/10/04 563 16 19 000 -1056 -121 -- ND<50 ND<O 50 ND<O 50 ND<O 50 NIKI 0 -- 19 MW-6 08/05/91 580 2982 000 -2402 -- — -- -- -- _ -- -- -- { 08/15/91 580 -- — — -- -- -- _ — — -- -- -. 11192 Page 8 of 17 I