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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through August 2005 Former BP Oil 11195 Date TOC Depth to LP11 Ground- Change TPH-G TPP11 Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 826013 benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (Fig/0 (µg/1) (µg/l) (µg11) (µg11) (µg/1) (µg/1) (µg/1) MW-1 continued 02/09/01 9.76 9.99 0.00 -0.23 0.19 ND -- ND ND ND ND 661 903 05/11/01 9.76 9.38 0.00 0.38 0.61 ND - ND 0.552 ND 0.691 124 140 08/10/01 9.76 10.38 0.00 -0.62 4L00 ND<50 -- ND<0.50 1.6 ND<0.50 1.5 1200 2000 11/21/01 9.76 10.89 0.00 -1.13 -0.51 ND<120 - ND<1.2 ND<1.2 ND<1.2 ND<1.2 1600 2000 02/07/02 9.76 8.90 0.00 0.86 1,99 ND<500 ND<5.0 ND<5.0 ND<5.0 ND<5.0 2400 1800 05/23/02 9.76 9.86 0.00 -0.10 -096 -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- 1900 08/15/02 14.42 10.33 0.00 4.09 4.19 -- ND<1000 ND<10 ND<10 ND<10 ND<20 -- 1100 11/18/02 14.42 10.72 0.00 3.70 -0.39 ND<1000 ND<10 ND<10 ND<10 ND<20 - 2000 02/13/03 14.42 9,83 0.00 4.59 0,89 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 120 05/12/03 14.42 10,17 0.00 4.25 -0.34 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<2,0 08/28/03 14.42 11.11 0.00 3.31 -0.94 -- 550 ND<0.50 ND<0.50 ND<0.50 ND<1.0 2.2 11/24/03 14.42 10.85 0.00 3.57 0.26 -- 630 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 760 02/26/04 14.42 9.95 0.00 4.47 0.90 -- 110 ND<1.0 ND<1.0 ND<1.0 ND<2.0 100 05/21/04 14.42 10.75 0.00 3.67 -0.80 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 6.4 08/26/04 14.42 11.29 0.00 3.13 -0.54 - 130 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.50 11/29/04 14.42 11.71 0.00 2.71 -0.42 -- 76 ND<0.50 ND<0.50 ND<0.50 ND<1.0 _- 2.8 02/15/05 14.42 10.50 0.00 3.92 1.21 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.8 05/25/05 14.42 10.08 0.00 4.34 0.42 - 150 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 08/31/05 14.42 10.33 0.00 4.09 -0.25 -- ND<50 ND<0.50 ND<0.50 ND<0,50 ND<I.0 - 1.8 Mme'-2 (Screen Interval in feet:8.0-23.0) 12/21/92 8.90 10,96 0.00 -2.06 -- ND -- ND ND ND ND __ -- 05/17/93 8.90 8.20 0.00 0,70 2.76 120 1.8 0.6 1.2 1 09/15/93 8.90 9.58 0.00 -0.68 -1,38 2800 -- 97 ND 290 250 -- -- 01/12/94 8.90 10.28 0.00 -1.38 -0.70 51 - ND ND ND ND 130 11195 Page 3 of 26