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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through June 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) (µg11) (µg/1) (41) (µg11) (µg/1) (µg/1) (µg11) (µg/1) MW-4 continued 05/12/03 14.37 10.03 0.00 4.34 -0.20 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1,0 27 08/28/03 14.37 10.96 0.00 3.41 -0.93 -- 85 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 19 11/24/03 14.37 10.66 0.00 3.71 0.30 -- 120 ND<0,50 ND<0.50 ND<0.50 ND<1.0 3.1 02/26/04 14.37 9,97 0,00 4.50 0.79 -- 120 ND<0.50 0.60 ND<0.50 ND<1.0 - 2.4 05/21/04 14.37 10.49 0.00 3.88 -0.62 -- 130 ND<0,50 ND<0.50 ND<0.50 ND<1.0 -- 0,58 08/26/04 14.37 11.03 0.00 3.34 -0.54 -- 90 ND<0.50 ND<0.50 ND<0,50 ND<1.0 -- ND<0.50 11/29/04 14.37 11.54 0.00 2.83 -0.51 -- 100 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 0.70 02/15/05 14.37 10.32 0.00 4,05 1.22 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.50 05/25/05 14.37 9.91 0.00 4.46 0.41 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.57 MW-5 (Screen Interval in feet:9.5-24.5) 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 I1.36 0.00 -0.66 0.71 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 I0.70 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 -- 11195 Page 10 of 25