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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through March 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 8021E 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (1g11) (µg/1) (µg11) (µg11) GLg/l) (µg/1) (µg/1) (11g/1) MW-2 continued 619/95 8.90 7.76 0.00 1.14 0.48 -- -- -- -- __ 8/31/95 8.90 9.56 0.00 -0.68 -1.82 550 ND ND ND ND 2500 -- 1112/95 8.90 10.15 0.00 -1.25 -0.57 -- -- - -- __ __ __ _ 2/28/96 8.90 6.81 0.00 2.09 3.34 90 2.1 ND 2 ND 1400 -- 9/5/96 8.90 9.12 0.00 -0.22 -2.31 ND - ND ND ND ND ND -- 3/25/97 8.90 6.32 0.00 2.58 2.80 1300 -- ND ND ND ND 3600 -- 10/15/97 8.90 10.42 0.00 -1.52 -4.10 670 -- ND ND ND ND 21000 -- 1/15198 8.90 9.28 0.00 -0.38 1.14 17000 -- ND ND ND ND 16000 -- 5/7/98 8.90 6.23 0.00 2.67 3.05 67000 - ND ND ND ND 110000 -- 9/3/98 8.90 8.42 0.00 0.48 -2.19 31000 -- ND ND ND ND 33000 -- 9/15/98 14.20 8.58 0,00 5.62 5.14 60 -- ND ND ND ND -- 43000 12/23/98 8.90 8.98 0.00 -0.08 -5.70 350 -- ND ND ND ND 390 -- 12/31/98 8.90 -- -_ __ __ __ _ __ Inaccessible Paved Over 3/22/99 8.90 -- -- -- _ Inaccessible Paved Over 5/20/99 9.03 7.96 0,00 1.07 -- ND -- ND ND ND ND 179 294 8/11/99 9.03 9.40 0.00 -0.37 -1.44 ND -- ND ND ND ND 1170 1400 11/19/99 9.03 9.57 0.00 -0.54 -0.17 ND -- ND 2.9 ND 3.5 120 150 2122/00 9.03 7.34 0.00 1.69 2.23 ND - ND ND ND ND 965 869 515100 9.03 7.63 0.00 1.40 -0.29 ND ND ND ND ND 235 258 8/28/00 9.03 9.16 0.00 -0.13 -1.53 ND -- ND ND ND ND 16.1 9.1 11/13/00 9.03 9.41 0.00 -0.38 -0.25 ND -- ND ND ND ND 52.1 54.9 2/9101 9.03 9.22 0.00 -0.19 0.19 ND -- ND ND ND ND 193 284 5111101 9.03 8.61 0.00 0.42 0.61 ND -- ND 0.606 ND 0.738 855 1140 8/10/01 9.03 9.61 0.00 -0.58 -1.00 ND<50 -- ND<0.50 1.2 ND<0.50 0.79 830 1200 11195 Page 4 of 24