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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 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (1g11) (µg(1) (41) (41) (µg11) (µg/1) (µg/1) MW-7 continued 12/08/94 14.27 -- -- __ __ __ __ Inaccessible Paved Over 02/21/95 14.27 8.21 0.00 6.06 -- ND -- ND ND ND ND 06/09/95 14.27 -- -- -- __ __ _. __ __ __ Destroyed 3W-8 (Screen Interval in feet:4.0-14.0) 09/03/98 8.91 8.41 0.00 0.50 -- ND -- ND ND ND 2 19 -- 12/23/98 8.91 8.95 0.00 -0.04 -0.54 ND -- ND ND ND ND 15 - 12/31/98 8.91 8.99 0.00 -0.08 -0.04 ND -- ND ND ND ND 13 -- 03/22/99 8.91 7.52 0.00 1.39 1.47 ND - ND ND ND ND 22 -- 05/20/99 8.91 7.71 0.00 1.20 -0.19 ND -- ND ND ND ND 22.4 30 08/11/99 8.91 9.10 0.00 -0.19 -1.39 ND -- ND ND ND ND 21.9 27 11/19/99 8.91 9.46 0.00 -0.55 -0.36 ND -- ND 1.3 ND 1.5 24 31 02/22/00 8.91 7.12 0.00 1.79 2.34 ND -- ND ND ND ND 11.3 7.54 05/05/00 8.91 7.36 0.00 1.55 -0.24 ND -- ND ND ND ND ND ND 08/28/00 8.91 8.88 0.00 0.03 -1.52 ND -- ND ND ND ND 217 255 11/13/00 8.91 9.15 0.00 -0.24 -0.27 ND -- ND ND ND ND 16 22.2 02/09/01 8.91 9.02 0.00 -0.11 0.13 ND -- ND ND ND ND 28.2 43 05/11/01 8.91 8.33 0.00 0.58 0.69 ND -- ND 0.585 ND 0.678 67.9 71.4 08/10/01 8.91 9.35 0.00 -0.44 -1.02 ND<200 -- ND<2.0 ND<2.0 ND<2.0 ND<2.0 2300 2900 11/21/01 8.91 9.97 0.00 -1.06 -0.62 ND<120 -- ND<1.2 ND<1.2 ND<1.2 ND<1.2 1500 1700 02/07/02 8.91 7.96 0.00 0.95 2.01 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 1200 1500 05/23/02 8.91 8.78 0.00 0.13 -0.82 -- ND<500 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1400 08/15/02 13.61 9.24 0.00 4.37 4.24 - 520 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 1900 11/18/02 13.61 9.72 0.00 3.89 -0.48 -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- 1700 02/13/03 1.3.61 -- -- -- -- - -- -- -- _ -- -- 11195 Page 15 of 27