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•�'•'{•�tiy t Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through October 2005 Former BP OR 11195 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 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) 01g/1) (µg/1) (µg11) (µg/1) (4g11) 41g/1) MW-3 continued 12/21/92 9.79 11.84 0.00 -2.05 -- 1300 6.7 3.1 9.1 310 -- -- 05/17/93 9.79 9.05 0.00 0.74 2.79 3600 -- 20 9.3 470 700 -- -- D 05/17/93 9.79 9.05 0.00 0.74 2.79 4000 23 12 520 810 -- -- 09/15/93 9.79 10.44 0.00 -0.65 -1.39 38000 770 34 1700 3300 -- -- 01/12/94 9.79 11.15 0.00 -1.36 -0.71 380 . ND ND ND ND -- - D 01/12/94 9.79 11.15 0.00 -1.36 -0.71 400 -- ND ND ND ND 1400 -- 05/12/94 9.79 10.45 0.00 -0.66 0.70 180 -- 0.7 -- 4.3 4.2 1400 -- D 05/12/94 9.79 10.45 0.00 -0.66 0.70 170 -- 0.7 ND 3.8 3.9 270 -- 10/07/94 9.79 11.21 0.00 -1.42 -0.76 120 -- ND ND ND ND -- -- D 10/07/94 9.79 11.21 0.00 -1.42 -0.76 ND -- 0.7 ND ND ND -- -- 12/08/94 9.79 11.40 0.00 -1.6I -0.19 470 -- 1.1 1.8 ND 9 -- -- D 12/08/94 9.79 11.40 0.00 -1.61 -0.19 460 0.7 1.1 ND 5.9 -- -- 02/21/95 9.79 9.11 0.00 0.68 2.29 4900 6.4 ND 370 400 -- -- 06/09/95 9.79 8.59 0.00 1.20 0.52 -- -- -- -- __ __ __ 08/31/95 9.79 10.46 0.00 -0.67 -1.87 5500 -- 11 ND 890 460 4300 -- 11/02/95 9.79 11.05 0.00 -1.26 -0.59 -- -- -- -- -_ __ __ 02/28/96 9.79 7.66 0.00 2.13 3.39 1600 3.2 ND 270 227 1200 -- D 02/28/96 9.79 7.66 0.00 2.13 3.39 1400 2.8 ND 240 204 1100 -- 09/05/96 9.79 9.99 0.00 -0.20 -2.33 3700 -- -- ND 420 ND 2100 -- 03/25/97 9.79 7.18 0.00 2.61 2.81 5300 -- 16 ND ND ND 7400 -- D 03/25/97 9.79 7.18 0.00 2.61 2.81 5400 -- ND ND ND ND 7200 -- 10/15/97 9.79 11.32 . 0.00 -1.53 -4.14 1500 -- 9.1 2.3 320 73.5 8700 -- D 10/15/97 9.79 11.32 0.00 -1.53 4.14 1400 -- 8.4 1.5 250 57 7900 -- 01/15/98 9.79 10.14 0.00 -0.35 1.18 24000 -- 20 ND ND ND 21000 -- 11185 Page 6 of 27