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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through June 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 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (41) (µg11) (µg/l) MW-12 continued 08/28/00 8.37 8.34 0.00 0.03 -1.26 ND -- ND ND ND ND ND ND 11/13/00 8.37 8.78 0.00 -0.41 -0.44 ND -- ND ND ND ND ND ND 02/09/01 8.37 8.61 0.00 -0.24 0.17 ND -- ND ND ND ND ND ND 05/11/01 8.37 9.30 0.00 -0.93 -0.69 ND - ND 0.536 ND ND ND ND 08/10/01 8.37 8.84 0.00 -0.47 0.46 ND<50 -- ND<0.50 0.76 ND<0.50 ND<0.50 ND<5.0 ND<2.0 11/21/01 8.37 9.50 0.00 -1.13 -0.66 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<5.0 ND<1.0 02/07/02 8,37 7.41 0.00 0.96 2.09 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<2.5 ND<2.0 05/23/02 8.37 8.28 0.00 0.09 -0.87 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.5 08/15/02 13.07 8.67 0.00 4.40 4.31 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<I.0 -- ND<2.0 11/18/02 13.07 9.24 0.00 3.83 -0.57 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 02/13/03 13.07 8.40 0.00 4.67 0.84 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 05/12/03 13.07 8.61 0.00 4.46 -0.21 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 08/28/03 13.07 9.53 0.00 3.54 -0.92 -- 96 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<2.0 11/24/03 13.07 9.17 0.00 3.90 0.36 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<2.0 02/26/04 13.07 8.31 0.00 4.76 0.86 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<2.0 05/21/04 13.07 9.09 0.00 3.98 -0.78 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0' - ND<0.50 08/26/04 13.07 9.60 0.00 3.47 -0.51 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 11/29/04 13.07 10.19 0.00 2.88 -0.59 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 02/15/05 13.07 8.94 0.00 4.13 1.25 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 06/06/05 13.07 8.90 0.00 4.17 0.04 -- 140 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 MW-13 (Screen Interval in feet.6.0-21.0) 06/18/02 15.23 11.21 0.00 4.02 -- - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 74 08/15/02 15.23 11.28 0.00 3.95 -0.07 - 110 ND<1.0 ND<1.0 ND<1.0 ND<2.0 - 140 11/18/02 15,23 11.69 0,00 3.54 -0.41 55 ND<0,50 ND<0.50 ND<0.50 ND<1.0 -- 130 11195 Page 20 of 25