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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 8260E benzene Xylenes 8021E 8260E Elevation Elevation (feet) (feet) (feet) (feet) (feet) {1g11) (jig/,) (ug/1) (41) (4g/1) 4Lg/1) (µg/1) (µg/1) MW-5 continued 8/26104 15.40 12.10 0.00 3.30 -0.54 -- 95 ND<0.50 ND<0.50 ND<0.50 ND<1.0 48 11/29/04 15.40 12-57 0.00 2.83 -0.47 77 ND<0.50 ND<0.50 ND<0-50 ND<1.0 -- 76 2/15105 15.40 11.35 0.00 4.05 1.22 -- ND<50 ND<0.50 ND<0-50 ND<0.50 ND<1.0 -- 31 MW-6 (Screen Interval in feet:7.0-20.0) 9/15/93 8.26 8.98 0.00 -0.72 -- 400 -- 2.4 ND ND ND -- -- 1112/94 8.26 9.62 0.00 -1.36 -0.64 670 ND ND ND ND 6700 -- 5/12/94 8-26 8.95 0.00 -0.69 -- 5500 -- ND ND ND ND 12000 10/7/94 8.26 9.72 0.00 -1.46 -0.77 ND -- ND ND ND ND -- 1218/94 8.26 9.88 0.00 -1.62 -0.16 300 ND ND ND ND -- 2/21/95 8.26 7.60 0.00 0.66 2.28 990 -- ND ND ND ND - -- 6/9/95 8.26 7.12 0.00 1.14 0.48 -- - -- - - -- 8/31/95 8.26 8.95 0.00 -0.69 -1.83 99 -- ND ND ND ND 1900 - 11/2/95 8.26 9.50 0-00 -1.24 -0.55 -- -- -- -- -- -- -- 2/28/96 8.26 6.19 0.00 2.07 3.31 90 -- ND ND ND ND 1400 - 9/5/96 8.26 8.49 0.00 -0.23 -2.30 ND -- ND ND ND ND 40 -- 3/25/97 8.26 5.67 0.00 2.59 2.82 ND -- ND ND ND ND ND -- 10/15/97 8.26 9.79 0.00 -1.53 -4-12 ND -- ND ND ND ND 920 -- 1/15/98 8.26 8.71 0.00 -0.45 1.08 ND -- ND ND ND ND 820 -- 517/98 8.26 5.58 0.00 2.68 3.13 1500 - ND ND ND ND 2300 -- 9/3/98 8.26 7.77 0.00 0.49 -2.19 ND -- ND ND ND ND 17 -- 12/23/98 8.26 8.32 0.00 -0.06 -- ND -- ND ND ND ND 20 -- 12/31/98 8.26 7.93 0.00 0.33 0.39 90 -- ND ND ND ND 100 -- 5/20/99 8.26 7.12 0.00 1.14 -- ND -- ND ND ND ND ND 2.39 8/11/99 8.26 8.57 0.00 -0.31 -1.45 ND - ND ND ND ND ND 2.6 11195 Page 12 of 24