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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 TPH-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) (11g/1) (µg/1) (µg/1) (µg/l) (µg11) (µg/1) (µg11) (µg/1) MW-1 continued 02/21/95 9.10 8.44 0.00 0.66 2.31 69 - ND ND ND ND - -- 06/09/95 9.10 7.94 0.00 1.16 0.50 -- -- -- _ _- __ 08/31/95 9.10 9.81 0.00 -0.71 -1.87 91 -- 0.7 ND ND ND 200 -- 11/02/95 9.10 10.38 0.00 -1.28 -0.57 -- -- -- -- 02/28/96 9.10 698 0.00 2.12 3.40 ND ND ND ND ND 130 - 09/05/96 9.10 9.31 0.00 -0.21 -2.33 ND -- ND ND ND ND ND -- 03/25/97 9.10 6.47 0.00 2.63 2.84 ND -- ND ND ND ND ND -- 10/15/97 9.10 10.65 0.00 -1.55 -4.18 420 ND ND ND ND 9100 -- 01/15/98 9.10 9.40 0.00 -0.30 1.25 ND -- ND ND ND ND 1200 -- 05/07/98 9.10 6.45 0.00 2.65 2.95 2700 -- ND ND ND ND 2900 -- 09/03/98 9.10 8.67 0.00 0.43 -2.22 17000 -- 1.2 ND ND ND 13000 -- 12/23/98 9.10 9.08 0.00 0.02 -- 17000 -- ND ND ND ND 17000 -- 12/31/98 9.10 -- _- __ -- _ __ __ Inaccessible Paved Over 03/22/99 9.10 -- -- __ __ __ - Inaccessible Paved Over 05/20/99 9.76 8.72 0.00 1.04 -- ND -- ND ND ND ND 3380 7130 08/11/99 9.76 10.11 0.00 -0.35 -1.39 99.7 -- ND ND ND ND 7060 7100 11/19/99 9.76 10.32 0.00 -0.56 -021 ND -- ND 2.2 ND 2 2500 3000 02/22/00 9.76 8.08 0.00 1.68 2.24 ND -- ND ND ND ND 2060 I900 05/05/00 9.76 8.42 0.00 1.34 -0.34 ND - ND ND ND ND 995 1870 08/28/00 9.76 9.90 0.00 -0.14 -1.48 100 -- ND ND ND ND 274 314 11/13/00 9.76 10.18 0.00 -0.42 -0.28 100 -- ND ND ND ND 338 319 02/09/01 9.76 9.99 0.00 -0.23 0.19 ND -- ND ND ND ND 661 903 05/11/01 9.76 9.38 0.00 0.38 0.61 ND -- ND 0.552 ND 0.691 124 140 08/10/01 9.76 10.38 0.00 -0.62 -1.00 ND<50 -- ND<0.50 1.6 ND<0.50 1.5 1200 2000 11195 Page 2 of 23