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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through March 2005 Former BP Oil 1.11.95 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 8021E 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (11g11) (µg/1) (µg11) (gg/l) (leg/1) (µg11) MW-4 continued 5/21/04 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 8/26/04 .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 2/15/05 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 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 - - 5/17/93 10.70 9.94 0.00 0.76 2.80 ND -- ND ND ND ND -- -- 9/15/93 10.70 11.31 0.00 -0.61 -1.37 N-D -- ND ND ND ND -- - 1/12/94 10.70 12.07 0.00 -1.37 -0.76 ND -- ND ND ND ND -- -- 5/12/94 10.70 11.36 0.00 -0.66 -- ND - ND ND ND ND -- -- 10/7/94 10.70 12.15 0.00 -1.45 -0.79 ND -- ND ND ND ND -- -- 12/8/94 10.70 12.32 0.00 -1.62 -0.17 ND ND ND ND ND - 2/21/95 10.70 10.01 0.00 0.69 2.31 ND -- ND ND ND ND - -- 619195 10.70 9.49 0.00 1.21 0.52 - -- -- -- -- - -- 7- 8/31/95 10.70 11.39 0.00 -0.69 -1.90 ND -- ND ND ND ND ND -- 11/2195 10.70 11.99 0.00 -1.29 -0.60 - -- - -- - -- -- -- 2128/96 10.70 8.53 0.00 2.17 3.46 ND -- ND ND ND ND ND -- 9/5/96 10.70 10.73 0.00 -0.03 -2.20 ND -- ND ND ND ND ND 3/25/97 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 -- 1/15198 10.70 10.98 0.00 -028 1.30 3600 -- ND ND ND ND 33000 -- 517/98 10.70 8.02 0.00 2.68 2.96 -- -- -- -- -- 9/3/98 10.70 10.28 0.00 0.42 -2.26 13000 -- ND ND ND ND 8000 -- 9/15196 13.56 10.45 0.00 3.11 2.69 ND -- ND 0.57 ND ND -- 120 11195 Page 10 of 24