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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through October 2005 Former BF Oil 11195 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MT13E Comments Sampled Elevation Water Thickness water in 82608 benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) (µg/1) (µg11) (µg11) (µg11) (µg/1) (µg11) {µg11) 1AW-2 continued 05/05/00 9.03 7.63 0.00 1.40 -0.29 ND -- ND ND ND ND 235 258 08/28/00 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 02/09/01 9.03 9.22 0.00 -0.19 0.19 ND -- ND ND ND ND 193 284 05/11/01 9.03. 8.61 0.00 0.42 0.61 ND -- ND 0.606 ND 0.738 855 1140 08/10/01 9.03 9.61 0.00 -0.58 -1.00 ND<50 -- ND<0.50 I.2 ND<0.50 0.79 830 1200 11/21/01 9.03 10.13 0.00 -1.10 -0.52 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 210 130 02/07/02 9.03 8.13 0.00 0.90 2.00 ND<500 -- ND<5.0 ND<5.0 ND<5.0 ND<5.0 560 550 05/23/02 9.03 9.10 0.00 -0.07 -0.97 250 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 970 08/15/02 13.75 9.57 0.00 4.18 4.25 -- 190 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 160 11/18/02 13.75 9.96 0.00 3.79 -0.39 -- ND<250 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 210 02/13/03 13.75 9.22 0.00 4.53 0.74 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 14 05/12/03 13.75 9.40 0.00 4.35 -0.18 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 44 08/28/03 13.75 10.34 0.00 3.41 -0.94 560 ND<2.5 ND<2.5 ND<2.5 ND<5.0 -- 480 11/24/03 13.75 10.12 0.00 3.63 0.22 -- 740 ND<5.0 ND<5.0 ND<5.0 ND<10 -- 690 02/26/04 13.75 9.33 0.00 4.42 0.79 -- 120 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 110 05/21/04 13.75 9.98 0A0 3.77 -0.65 -- 57 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 55 08/26/04 13.75 10.55 0.00 3.20 -0.57 -- 57 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 22 11/29/04 13.75 10.94 0.00 2.81 -0.39 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 15 02/15/05 13.75 9.76 0.00 3.99 1.18 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 3.9 05/25/05 13.75 9.32 0.00 4.43 0.44 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 13 08/31/05 13.75 9.63 0.00 4.12 -0.31 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.52 10/25/05 13.75 10.21 0.00 .3.54 -0.58 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 MW-3 (Screen Interval in feet:8.0-23.0) t ss Page 5 of 27