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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through August 2005 Former BP Oil 11195 Date TOC Depth to LPH Ground- Change TPH-G TPPIJ Benzene Toluene Ethyl- Total MTBF MTBE Comments Sampled Elevation Water 'Thickness water in 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (fee() (feet) (feet) (feet) (µg/1) (µg1[) (µg11) (µg11) (µgll) (µg/1) (µg11) (µg/1) MW-6 continued 11/02/95 8.26 9.50 0.00 -1.24 -0.55 -- - - -- -- -- 02/28/96 8.26 6.19 0.00 2.07 3.31 90 - ND ND ND ND 1400 -- 09/05/96 8.26 8.49 0.00 -0.23 -2.30 ND ND ND ND ND 40 03/25/97 8.26 5.67 0.00 2.59 2.82 ND - ND ND ND ND ND -- 10/15/97 8.26 9.79 0.00 -1.53 412 ND - ND ND ND ND 920 -- 01/15/98 8.26 8.71 0.00 -0.45 1.08 ND ND ND ND ND 820 -- 05/07/98 8.26 5.58 0.00 2.68 3.13 1500 ND ND ND ND 2300 - 09/03/98 8.26 7.77 0.00 0.49 -2.19 ND - ND ND ND ND 17 -- 12/23/98 8.26 8.32 0.00 -0.06 -0.55 ND ND ND ND ND 20 -- 12/31/98 8.26 7.93 0.00 0.33 0.39 90 -- ND ND ND ND 100 -- 05/20/99 8.26 7.12 0.00 1.14 0.81 ND - ND ND ND ND ND 2.39 08/11/99 8,26 8.57 0.00 -0.31 -1.45 ND ND ND ND ND ND 2.6 11/19/99 8.26 8.75 0.00 -0.49 -0.18 ND -- ND 2.4 ND 2.6 11 13 02/22/00 8.26 6.59 0.00 1.67 2.16 ND -- ND ND ND ND 14.8 16.8 05/05/00 8.26 6.81 0.00 1.45 -0.22 ND -- ND ND ND ND ND ND 08/28/00 8.26 8.35 0.00 -0.09 -1.54 ND ND ND ND ND ND ND 11/13/00 8.26 8.65 0.00 -0.39 -0.30 ND - ND ND ND ND ND ND 02/09/01 8.26 8.40 0.00 -0.14 0.25 ND ND NI) ND ND 7.66 8.21 05/11/01 8.26 7.80 0.00 0.46 0.60 ND ND 0.55 ND ND ND 5.29 08/10/01 8.26 8.82 0.00 456 -1.02 ND<50 -- ND<0.50 ND<0,50 ND<0.50 ND<0,50 7 9.8 11/21/01 8.26 9.32 0.00 -1.06 -0.50 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 5.4 4.7 02/07/02 8.26 7.34 0.00 0.92 1.98 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<2,5 ND<2.0 05/23/02 8.26 8.29 0.00 -0.03 -0.95 - ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 - 3.8 08/15/02 12.90 8.79 0.00 4.11 4.14 ND<50 ND<0.50 ND<0.50 ND<0.50 NIM.0 - 5.8 11195 Page 13 of 26