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1 Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS December 1992 Through August 2005 Former BP Oil 11195 Date "IOC Depth to I'M Ground- Change TPIi-G TPPH Benzene "Toluene Ethyl- Total MTBF MTBE Cornments Sampled Elevation Water Thicluiess water in 8260B benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) 41g11) (µg/1) (110) (µg/1) (µg/1) (µg/1) (µg11) MW-3 continued 09/15/93 9.79 10.44 0.00 -0.65 -1.39 38000 -- 770 34 1700 3300 01/12/94 9.79 11.15 0.00 -1,36 -0.71 380 -- ND ND ND ND -- -_ D 01/12/94 9.79 11.15 0.00 -1.36 -0.71 400 -- ND ND ND ND 1400 05/12/94 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 0.00 467 -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 I200 - 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 - 1) 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 1) 09103!98 9.79 9.32 0.00 0.47 -2.22 66000 ND ND 350 100 73000 -- 11195 Page 6 of 26