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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 8021B 8260.8 Elevation Elevation (feet) (feet) (feet) (feet) (feet) (1g/1) (µg/1) (140) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) MW-6 continued 05/12/94 8.26 8.95 0.00 -0.69 0.67 5500 -- ND ND ND ND 12000 -- 10/07/94 8.26 9.72 0.00 -1.46 -0.77 ND -- ND ND ND ND -- 12/08/94 8.26 9.88 0.00 -1.62 -0.16 300 ND ND ND ND -- -- 02/21/95 8.26 7.60 0.00 0.66 2.28 990 -- ND ND ND ND -- -- 06/09/95 8.26 7.12 0.00 1.14 0.48 -- -- .. __ 08/31/95 8.26 8.95 0.00 -0.69 -1.83 99 -- ND ND ND ND 1900 -- 11/02/95 8.26 9.50 0.00 -1.24 -0.55 -- -- -- __ 02/28/96 8.26 6.19 0.00 2.07 3.31 90 -- ND ND ND ND 1400 -- 09/05/96 8.26 8.49 0.00 -0.23 -2.30 ND -- ND ND ND ND 40 -- 03/25/97 8.26 5.67 0.00 2.59 2.82 ND -- ND ND ND ND ND -- 10/15/97 8.26 9.79 0.00 -1.53 -4.12 ND -- ND ND ND ND 920 -- 01/15/98 8.26 8.71 0.00 -0.45 1.08 ND -- ND ND ND ND 820 -- 05/07/98 8.26 5.58 0.00 2.68 3.13 1500 -- ND ND ND ND 2300 -- 09/03/98 8.26 7.77 0.00 0.49 -2.19 ND -- ND ND ND ND 17 -- 12/23/98 8.26 8.32 0.00 -0.06 -0.55 ND -- ND ND ND ND 20 -- 12/31/98 8.26 7.93 0.00 0.33 0.39 90 -- ND ND ND ND 100 -- 05/20/99 8.26 7.12 0.00 1.14 0.81 ND -- ND ND ND ND ND 2.39 08/11/99 8.26 8.57 0.00 -0.31 -1.45 ND -- ND ND ND ND ND 2.6 11/19/99 8.26 8.75 0.00 -0.49 -0.18 ND -- ND 2.4 ND 2.6 11 13 02/22/00 8.26 6.59 0.00 1.67 2.16 ND -- ND ND ND ND 14.8 16.8 05/05/00 8.26 6.81 0.00 1.45 -0.22 ND -- ND ND ND ND ND ND 08/28/00 8.26 8.35 0.00 -0.09 -1.54 ND -- ND ND ND ND ND ND 11/13/00 8.26 8.65 0.00 -0.39 -0.30 ND -- ND ND ND ND ND ND 02/09/01 8.26 8.40 0.00 -0.14 0.25 ND -- ND ND ND ND 7.66 8.21 11195 Page 13 of 27