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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through March 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 8260E benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µgli) (µg/1) (µg/1) (µg/l) (µg/1) (µg11) (µg/i) MW-11 continued 12/23/98 7.38 -- -- -- -- -- -- 12/31/98 . 7.38 7.55 0.00 -0.17 -- 350 -- ND ND ND ND 400 -- 3/22/99 7.38 6.25 0.00 1.13 1.30 ND -- ND ND ND ND 59 -- 5/20/99 7.38 6.27 0.00 1.11 -0.02 ND -- 0.989 ND ND ND 904 780 8/11/99 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 2/22/00 7.38 5.88 0.00 1.50 2.12 ND -- ND ND ND ND ND 2.68 5/5/00 7.38 6.01 0.00 1.37 -0.13 ND - ND ND ND ND 1490 1640 8/28!00 7.38 7.43 0.00 -0.05 -1.42 ND -- ND ND ND ND 4660 2770 I1/13/00 7.38 7.62 0.00 -0.24 -0.19 ND -- ND ND ND ND 135 137 2/9/01 7.38 7.61 0.00 -0.23 0.01 ND -- ND ND ND ND 844 1290 5/11/01 7.38 6.84 0.00 0.54 0.77 ND - 1.17 ND 1.10 97 81.2 8/10/01 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 2/7/02 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 5/23/02 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 8/15/02 12.08 7.69 0.00 4.39 -- -- 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 2/13/03 12.08 7.41 0.00 4.67 0.79 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<l.0 - ND<2.0 5/12/03 12.08 7.63 0.00 4.45 -- -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 2.6 8/28/03 12.08 8.53 0.00 3.55 -0.90 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 7.1 11/24/03 12.08 8.21 0.00 3.87 0.32 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 2126/04 12.08 7.34 0.00 4.74 0.87 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<2.0 5/21/04 12.08 8.11 0.00 3.97 -0.77 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 0.88 11185 Page 18 of 24