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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through June 2005 Former BP OR 11195 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Continents Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (pg/l) (µg/1) (µg/1) (µg11) (µg11) (Ag/1) (µg/1) (µg/l) MW-3 continued 05/I2/94 9.79 10.45 0.00 -0.66 0.70 180 - 0.7 -- 4.3 4.2 1400 -- D 05/12/94 9.79 10.45 0.00 -0.66 0.70 170 -- 0.7 ND 3.8 3.9 270 - 10/07/94 9.79 11.21 0.00 -1.42 -0.76 120 - ND ND ND ND -- D 10/07/94 9.79 11.21 0.00 -1.42 -0.76 ND -- 0.7 ND ND ND -- -- 12/08/94 9.79 11.40 0.00 -1.61 -0.19 470 - 1.1 1.8 ND 9 -- - D 12/08/94 9.79 11.40 0.00 -1.61 -0.19 460 -- 0.7 1.1 ND 5.9 -- -- 02/21/95 9.79 9.11 0.00 0.68 2.29 4900 - 6.4 ND 370 400 -- -- 06/09/95 9.79 8.59 0.00 1.20 0.52 -- -- -- -- -- -_ 08/31/95 9.79 10.46 0.00 -0.67 -1.87 5500 -- 11 ND 890 460 4300 -- 11/02/95 9.79 11.05 0.00 -1.26 -0.59 -- -- -- -- -- __ __ 02/28/96 9.79 7.66 0.00 2.13 3.39 1600 -- 3.2 ND 270 227 1200 -- D 02/28/96 9.79 7.66 0.00 2.13 3.39 1400 - 2.8 ND 240 204 1100 -- 09/05/96 9.79 9.99 0.00 -0.20 -2.33 3700 -- ND 420 ND 2100 -- 03/25/97 9.79 7.18 0.00 2.61 2.81 5300 - 16 ND ND ND 7400 - D 03/25/97 9.79 7.18 0.00 2.61 2.81 5400 - ND ND ND ND 7200 -- 10/15/97 9.79 11.32 0.00 -1.53 -4.14 1500 -- 9.1 2.3 320 73.5 8700 -- D 10/15/97 9.79 11.32 0.00 -1.53 -4.14 1400 -- 8.4 1.5 250 57 7900 - 01/15/98 9.79 10.14 0.00 -0.35 1.18 24000 -- 20 ND ND ND 21000 -- 05/07/98 9.79 7.10 0.00 2.69 3.04 -- -- -- __ __ -- 09/03/98 9.79 9.32 0.00 0.47 -2.22 81000 -- ND ND 360 100 78000 -- D 09/03/98 9.79 9.32 0.00 0.47 -2.22 66000 - ND ND 350 100 73000 -- 09/15/98 15.10 9.50 0.00 5.60 5.13 4100 -- ND 11 370 50 -- 23000 12/23/99 9.79 9.98 0.00 -0.19 -5.79 62000 -- 4.2 ND 210 5.1 77000 -- 12/31/98 9.79 -- -- -- -- __ __ __ __ __ __ __ _ Inaccessible Paved Over 11195 Page 6 of 25