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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through November 2004 Former BP Oil 11195 Date TOC Depth to LPH Ground- Change TAH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) (11g/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg11) GLg/1) MW-5 continued 12/21/92 10.70 12.74 0.00 -2.04 -- ND -- ND ND ND ND -- -- 05/17/93 10.70 9.94 0.00 0.76 2.80 ND - ND ND ND ND -- - 09/15/93 10.70 11.31 0.00 -0.61 -1.37 ND -- ND ND ND ND -- 01/12/94 10.70 12.07 0.00 -1.37 -0.76 ND - ND ND ND ND -- -- 05/12/94 10.70 11.36 0.00 -0.66 -- ND ND ND ND ND -- -- 10/07/94 10.70 12.15 0.00 -1.45 -0.79 ND -- ND ND ND ND -- - 12/08/94 10.70 12.32 0.00 -1.62 -0.17 ND -- ND ND ND ND -- -- 02/21/95 10.70 10.01 0.00 0.69 2.31 ND -- ND ND ND ND - 06/09/95 10.70 9.49 0.00 1.21 0.52 08/31/95 10.70 11.39 0.00 -0.69 -1.90 ND -- ND ND ND ND ND - 11/02/95 10.70 11.99 0.00 -1.29 -0.60 -- -- -- -- -- __ __ 02/28/96 10.70 8.53 0.00 2.17 3.46 ND ND ND ND ND ND - 09/05/96 10.70 10.73 0.00 -0.03 -2.20 ND -- ND ND ND ND ND - 03/25/97 10.70 7.71 0.00 2.99 3.02 ND ND ND ND ND ND -- 10/15/97 10.70 12.28 0.00 -1.58 -4.57 2200 -- ND ND ND ND 93000 -- 01/15/98 10.70 10.98 0.00 -0.28 1.30 3600 -- ND ND ND ND 33000 -- 05/07/98 10.70 8.02 0.00 2.68 2.96 -- -- -- -- __ 09/03/98 10.70 10.28 0.00 0,42 -2.26 13000 -- ND ND ND ND 8000 09/15/98 13.56 10.45 0.00 3.11 2.69 ND -- ND 0157 ND ND -- 120 12/23/98 10.70 10.91 0.00 -0,21 -3.32 130000 -- ND ND ND ND 160000 -- 12/31/98 10.70 10.92 0.00 -0.22 -0.01 110000 -- ND ND ND ND 160000 -- 03/22/99 10.70 10.73 0.00 -0.03 0.19 85000 - ND ND ND ND 95000 -- 05/20/99 10.70 9.6I 0.00 1.09 1.12 ND -- ND ND ND ND 2920 5000 08/11/99 10.70 11.00 0.00 -0.30 -1.39 ND ND ND ND ND 61600 60000 11195 Page 10 of 23