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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 8260E benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (ug/1) (µg/1) (µg/1) MW-4 continued 05/12/94 9.03 9.70 0.00 -0.67 -- 160 -- ND 2.5 0.7 ND 10/07/94 9.03 10.46 0.00 -1.43 -0.76 13000 -- 11 2.1 1100 33 -- -- 12/08/94 9.03 10.62 0.00 -1.59 -0.16 5400 -- 20 27 490 54 -- -- 02/21/95 9.03 8.29 0.00 0.74 0.00 11000 -- ND ND 990 460 -- -- D 02/21/95 9.03 8.29 0.00 0.74 2.33 11000 -- ND ND 990 450 -- - 06/09/95 9.03 7.79 0.00 1.24 0.00 88 -- ND ND ND ND D 06/09/95 9.03 7.79 0.00 1.24 0.50 810 -- ND 0.52 22 2.5 -- -- 08/31/95 9.03 9.73 0.00 -0.70 0.00 2500 -- ND ND 130 14 ND D 08/31/95 9.03 9.73 0.00 -0.70 -1.94 2800 -- ND ND 160 17 ND 11/02/95 9.03 10.30 0.00 -1.27 -0.57 1800 -- ND ND 56 3.6 ND -- D 11/02/95 9.03 10.30 0.00 -1.27 0.00 1300 -- ND ND 38 2.7 ND -- 02/28/96 9.03 6.87 0.00 2.16 3.43 2700 -- 2.6 1 220 75 ND -- 09/05/96 9.03 9.19 0.00 -0.16 0.00 530 ND ND ND ND ND -- D 09/05/96 9.03 9.19 0M -0.16 -2.32 110 ND ND ND ND ND -- 03/25/97 9.03 6.40 0.00 2.63 2.79 590 -- ND ND 1.3 ND ND -- 10/15/97 9.03 10.59 0.00 -1.56 -4.19 1600 3.6 ND ND ND 60000 -- 01/15/98 9.03 9.37 0.00 -0.34 1.22 19000 - 7.3 ND ND ND 18000 -- 05/07/98 9.03 6.30 0.00 2.73 0.00 1100 -- ND ND ND ND 1100 -- D 05/07/98 9.03 6.30 0.00 2.73 3.07 19000 6.6 ND ND ND 18000 -- 09/03/98 9.03 8.58 0.00 0.45 -2.28 2400 -- ND ND 2.8 ND 680 -- 09/15/98 14.32 8.75 0.00 5.57. 5.12 590 -- ND 3.4 ND ND -- 990 12/23/98 9.03 9.09 0.00 -0.06 -5.63 34000 -- ND ND ND ND 36000 -- 12/31/98 9.03 9.10 0.00 -0.07 -0.01 29000 -- ND ND ND ND 40000 -- 03/22/99 9.03 7.85 0.00 1.18 1.25 4600 -- ND ND ND ND 4400 - 11195 Page 8 of 23