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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 is Comments <br /> Sampled Elevation Water Thickness water Elevation TPH-G TPH-G, Ethyl- Total MTBE MTBE <br /> Elevation 8015 <br /> (GC/MS) Benzene Toluene benzene Xylenes (8021B) (8260B) - <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (pg/1) (µ1) (µg/1) <br /> MW-16 continued <br /> 10/26/2005 12.20 35.42 0.00 -23.22 -- 200 -- 12 ND<0.50 3.8 5.5 -- 21 <br /> 1/5/2006 12.20 34.04 0.00 -21.84 1.38 120 -- 11 ND<0.50 2.8 4.5 -- 20 <br /> 4/10/2006 12.20 30.97 0.00 -18.77 3.07 110 -- 11 ND<0.50 3.2 6.2 -- 15 - <br /> 7/26/2006 12.20 29.42 0.00 -17.22 1.55 590 -- 6.4 ND<0.50 25 220 -- 4.2 <br /> 10/19/2006 12.20 31.47 0.00 -19.27 -2.05 100 -- 4.3 ND<0.50 3.7 26 -- 4,2 <br /> 1/16/2007 12.20 30.81 0.00 -18.61 0.66 ND<50 0.98 ND<0.50 ND<0.50 ND<0.50 3.1 <br /> 4/10/2007 12.20 30.35 0.00 -18.15 0.46 . 89 -- 3.1 ND<0.50 2.7 12 __ 2,2 <br /> 8/27/2007 12.20 32.03 0.00 -19.83 -1.68 ND<50 -- ND<0.50 ND<0.50 ND<0.50 0.67 -- ND<0.50 <br /> 10/29/2007 12.20 32.60 0.00 -20.40 -0.57 ND<50 -- 0.77 ND<0.50 0.87 3.5 -- 0.53 <br /> 1/7/2008 12.20 31.81 0.00 -19.61 0.79 ND<50 - 1.5 ND<0.50 0.96 4.4 -- 1.6 <br /> 5/7/2008 12.20 30.34 0.00 -18.14 1.47 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 8/4/2008 12.20 31.28 0.00 -19.08 -0.94 59 2.5 ND<0.50 0.89 2.6 0.91 <br /> 10/21/2008 12.20 31.81 0.00 -19.61 -0.53 ND<50 -- 0.53 ND<0.50 ND<0.50 2.5 -- ND<0.50 • <br /> 2/10/2009 12.20 32.72 0.00 -20.52 -0.91 ND<50 -- 1.2 ND<0.50 0.53 1.7 -- ND<0.50 <br /> 4/16/2009 12.20 32.53 0.00 -20.33 0.19 ND<50 -- 1.4 ND<0.50 0.56 ND<1.0 -- 0.66 <br /> 7/28/2009 12.20 33.55 0.00 -21.35 -1.02 72 -- 4.2 ND<0.50 1.5 3.7 -- 1.4 <br /> 1/20/2010 12.20 33.30 0.00 -21.10 0.25 ND<50 ,-- 4.6 ND<0.50 1.5 3.6 -- 1.7 <br /> 7/7/2010 12.20 31.52 0.00 -19.32 1.78 ND<50 -- 3.4 ND<0.50 1.3 3.2 . -- 1.4 <br /> 1/20/2011 12.20 31.02 0.00 -18,82 0. 0 ND<50 2.2 ND<0.50 1.0 2.6 0,73 <br /> 1!(?l(2" _ -- <br /> PTW-1 (Screen Interval in feet:52.5-72.5) <br /> 1/25/1999 -- 28.91 -- -- -- ND<50 -- ND<0.50 ND<0.50 ND<0.50 1.5 9.4 8.4 <br /> 4/19/1999 -- 26.4.2 -- -- -- ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 4.2 3.4 <br /> 7/15/1999 -- 27.82 - -- -- ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<2.5 ND<2.0 <br /> seer Page 40 of 54 <br /> TRG <br />