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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through October 2005 Former BP Oil 11195 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260E benzene Xylenes 8021B 8260B Elevation EIevation (feet) (feet) (feet) (feet) (feet) (µg]1) (µg/1) (µg11) (µg/1) (Ag/l) (µg/1) (µg/1) (µg/1) MW-5 continued 05/12/94 10.70 11.36 0.00 -0.66 0.71 ND -- ND ND ND ND -- -- 10/07/94 10.70 12.15 0.00 -I.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 0.57 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 9.61 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 11/19/99 10.70 11.30 0.00 -0.60 -0.30 ND -- 100 ND ND ND 93000 110000 02/22/00 10.70 7.95 0.00 2.75 3.35 157 -- ND ND ND ND 49100 49000 05/05/00 10.70 9.36 -- 1.34 -1.41 ND -- ND ND ND ND 4860 6070 08/28/00 10.70 10.80 0.00 -0.10 -1.44 ND -- ND ND ND ND 8040 10800 11195 Page 11 of 27