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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 <br /> Elevation Ethyl- Total MTBE MTBE <br /> 8015 (GC/MS) Benzene Toluene benzene Xylenes (8021B) (8260B) <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) <br /> MW-2 continued <br /> 12/30/2003 11.56 34.23 0.00 -22.67 0.55 -- 370 12 0.55 ND<0.50 2.1 -- 5.0 • <br /> 3/9/2004 11.56 33.34 0.00 -21.78 0.89 -- 200 9.2 ND<0.50 ND<0.50 3.3 -- 3.2 <br /> 6/16/2004 11.56 34.01 0.00 -22.45 -0.67 -- 240 6.6 ND<0.50 ND<0.50 2.0 -- 1.3 <br /> 9/20/2004 11.56 36.93 0.00 -25.37 -2.92 83 -- 4.4 ND<0.50 ND<0.50 ND<1.0 -- 0.63 <br /> 12/30/2004 11.56 36.27 0.00 -24.71 0.66 63 -- 1.5 ND<0.50 ND<0.50 ND<I.0- -- ND<0.50 <br /> 3/24/2005 11.56 34.87 0.00 -23.31 1.40 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 6/28/2005 11.56 34.81 0.00 -23.25 0.06 100 -- 1.5 ND<0.50 0.227 0.49J -- ND<0.50 <br /> 9/9/2005 11.56 35.27 0.00 -23.71 -0.46 120 -- 8.3 0.57 1.3 1.7 -- ND<0.50 <br /> 10/26/2005 11.56 35.26 0.00 -23.70 0.01- 100 -- 1.5 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 1/5/2006 11.56 33.94 0.00 -22.38 1.32 240 -- 2.4 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 4/10/2006 11.56 30.75 0.00 -19.19 3.19 . 120 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 7/26/2006 11.56 29.32 0.00 -17.76 1.43 69 ND<0-50 0.55 ND<0.50 0.75 ND<0.50 <br /> 10/19/2006 11.56 31.36 0.00 -19.80 -2.04 69 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 <br /> 1/16/2007 11.56 30.71 0.00 -19.15 0.65 170 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 • <br /> 4/10/2007 11.56 30.27 0.00 -18.71 0.44 140 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 <br /> 8/27/2007 11.56 31.93 0.00 -20.37 -1.66 160 -- 1.0 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 <br /> 10/29/2007 11.56 32.49 0.00 -20.93 -0.56 110 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 <br /> 1/7/2008 11.56 31.81 0.00 -20.25 0.68 150 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -_ - ND<0.50 <br /> 5/7/2008 11.56 30.25 0.00 .18.69 1.56 170 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.50 <br /> 8/4/2008 11.56 31.22 0.00 -19.66 -0.97 200 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 10/21/2008 11.56 31.73 0.00 -20.17 -0.51 200 -- 0.59 ND<0.50 ND<0.50 ND<1.0 __ ND<0.50 <br /> 2/10/2009 11.56 32.67 0.00 -21.11 -0.94 220 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 4/16/2009 11.56 32.45 0.00 -20.89 0.22 190 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 6981 Page 7 of 54 <br /> A*ITRC _ <br />