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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through October 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 802113 8260E Elevation Elevation. (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg11) (µg/1) (µg/1) (µg/1) MW-10 continued 02/I5/05 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 08/31/05 12.01 7.54 0.00 4.47 -0.16 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 10/25/05 12.01 8.16 0.00 3.85 -0.62 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 1.5 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 6.27 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 1490 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 02/07/02 7.38 6.40 0.00 0.98 2.04 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 39 48 05/23/02 7.38 7.29 0.00 0.09 -0.89 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 265 08/15/02 12.08 7.69 0.00 4.39 4.30 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 57 11/18/02 12.08 8.20 0.00 3.88 -0.51 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 21 11195 Page 19 of 27