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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through June 2005 Former BP Oil 11195 Date TQC 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/l) (µg/1) (µg11) (µg11) (µg11) (41) (µg/1) (µg/1) MW-10 continued 08/28/03 12.01 9.43 0.00 2.58 -0.90 -- 58 ND<0.50 ND<0.50 ND<0.50 ND<1,0 -- ND<2.0 11/24/03 12.01 9.18 0.00 2.83 0.25 -- ND<50 ND<0.50 0.64 ND<0.50 ND<1.0 -- 3.1 02/26/04 12.01 8,13 0.00 3.88 1,05 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 13 05/21/04 12.01 9-82 0.00 2.19 -1.69 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.98 08/26/04 12,01 10.40 0.00 1.61 -0.58 - 430 ND<1.0 ND<1.0 ND<1.0 ND<2.0 -- 260 11/29/04 12.01 10.82 0.00 1.19 -0.42 -- 990 ND<1.0 ND<1.0 ND<1.0 ND<2,0' -- 1200 02/15/05 12.01 9.64 0.00 2.37 1.18 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 250 05/25/05 12.01 7.38 0.00 4.63 2.26 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 36 MW-11 (Screen Interval in feet:4.0-14.0) 09/03/98 7.38 6.98 0.00 0.40 -- ND -- ND ND ND ND ND - 12/23/98 7.38 -- __ __ __ __ 12/31/98 7.38 7.55 0.00 -0.17 - 350 ND ND ND ND 400 -- 03/22/99 7.38 6.25 0.00 1.13 1.30 ND -- ND ND ND ND 59 -- 05/20/99 7.38 627 0.00 1.11 -0.02 ND -- 0.989 ND ND ND 904 780 08/11/99 7.38 7.61 0.00 -0.23 -1.34 ND -- ND ND ND ND 16200 16000 11/19/99 7.38 8.00 0.00 -0.62 -0.39 ND 15 ND ND ND 1400 20000 02/22/00 7.38 5.88 0.00 1.50 2.12 ND -- ND ND ND ND ND 2.68 05/05/00 7.38 6.01 0.00 I.37 -0.13 ND -- ND ND ND ND I490 1640 08/28/00 7.38 7.43 0.00 -0.05 -1.42 ND -- ND ND ND ND 4660 2770 11/13/00 7.38 7.62 0.00 -0.24 -0.19 ND ND ND ND ND 135 137 02/09/01 7.38 7.61 0.00 -0.23 0.01 ND -- ND ND ND ND 844 1290 05/11/01 7.38 6.84 0.00 0.54 0.77 ND -- -- 1.17 ND 1.19 97 81.2 08/10/01 7.38 7.83 0.00 -0.45 -0.99 ND<50 -- ND<0.50 0,76 ND<0.50 0.64 590 630 11/21/01 7.38 8.44 0.00 -1.06 -0.61 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 540 610 1 195 Page 18 of 25