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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through January 2011 <br /> Former 76 Station 6981 <br /> Date TOC Depth to LPH Ground- Change in - Comments <br /> Sampled Elevation Water Thickness water Elevation TPH-G TPH-G Ethyl- Total MTBE MTBE <br /> Elevation 8015 (GC/MS) Benzene Toluene benzene Xylenes (8021B <br /> (8260B) <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) 441) (41) (µg/1) <br /> MW-16 continued • <br /> 1/27/2000 11.79 28.95 0.00 -17.16 0.44 4600 -- - 78 5.7 170 390 130 130 <br /> 6/26/2000 11.79 26.13 0.00 -14.34 2.82 1650 -- 18.9 2.57 43.6 105 66.7 73.7 <br /> 9/22/2000 12.20 29.04 0.00 -16.84 -2.50 1800 -- 16 ND<10 31 72 85 68 <br /> 12/26/2000 12.20 28.98 0.00 -16.78 0.06 3720 -- 27.5 ND<10.0 62.7 178 176 111 <br /> 3/7/2001 12.20 28.68 0.00 -16.48 0.30 3690 -- 31.1 ND<10.0 54.7 200 ND<100 133 <br /> 6/26/2001 12.20 29.69 0.00 -17.49 -1.01 4300 -- 38 ND<5.0 61 170 100 150 <br /> 9/12/2001 12.20 31.55 0.00 -19.35 -1.86 1400 -- 47 ND<5.0 22 85 110 190 <br /> 12/12/2001 12.20 31.82 0.00 -19.62 -0.27 5600 -- 160 ND<5.0 72 270 210 250 <br /> 3/20/2002 12.20 31.78 0.00 -19.58 0.04 1800 -- 230 ND<5.0 45 67 210 230 <br /> 6/6/2002 12.20 31.03 0.00 -18.83 0.75 -- 2000 290 ND<5.0 69 88 -- 120 <br /> 9/30/2002 12.20 33.60 0.00 -21.40 -2.57 -- 55 5.6 ND<0.50 1.2 1.6 -- 3 <br /> 12/30/2002 12.20 33.15 0.00 -20.95 0.45 -- ND<50 0.53 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 <br /> 3/29/2003 12.20 32.12 0.00 49.92 1.03 -- 200 38 0.61 2.2 3.4 -- 89 <br /> 6/25/2003 12.20 32.42 0.00 -20.22 -0.30 -- 220 24 0.57 3.2 5.6 -- 43 . <br /> 9/24/2003 12.20 34.81 0.00 -22.61 -2.39 -- 140 25 0.68 3.3 5.3 -- 28 <br /> 12/30/2003 12.20 34.31 0.00 -22.11 0.50 -- 200 32 ND<2.0 5.6 9.6 -- 22 <br /> 3/9/2004 12.20 33.43 0.00 -21.23 0.88 -- 150 29 0.71 5.9 10 -- 16 <br /> 6/16/2004 12.20 34.03 0.00 -21.83 -0.60 -- 280 35 ND<2.5 7.8 14 -- 16 <br /> 9/20/2004 12.20 -- -- - -- -- -- __ __ -_ __ __ __ - Dry well <br /> 12/30/2004 12.20 36.35 0.00 -24.15 -- 110 -- 10 ND<0.50 4.0 7.1 -- 12 <br /> 3/24/2005 12.20 35.00 0.00 -22.80 1.35 120 -- 18 ND<0.50 3.8 5.6 -- 18 <br /> 6/28/2005 12.20 33.44 0.00 -21.24 1.56 100 -- 9.0 - 0.191 2.4 4.0 -- 22 _ <br /> 9/9/2005 12.20 -- -- - -- -- _ Car parked over well <br /> 6981 Page 39 of 54 9 �TRS ' <br />