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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 <br /> (GC/MS) Benzene Toluene benzene Xylenes (802113) (826013) <br /> (feet) (feet) (feet) (feet) (feet) (41) (1g/1) (µg/1) (41) (41) (µg/1) (µg/1) (lig/1) <br /> VW-4 continued <br /> 9/9/2005 11.76 34.93 0.00 -23.17 -1.88 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 - ND<0.50 <br /> 10/26/2005 11.76 35.02 0.00 -23.26 -0.09 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<0.50 <br /> 1/5/2006 11.76 33.58 0.00 -21.82 1.44 ND<50 - ND<0.50 ND<0.50 ND<0.50 ND<I.0 -- ND<0.50 <br /> 4/10/2006 11.76 30.63 0.00 -18.87 2.95 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 7/26/2006 11.76 29.01 0.00 -17.25 1.62 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 <br /> 10/19/2006 11.76 31.05 0.00 -19.29 -2.04 92 -- ND<0.50 ND<0.50 0.69 12 -- ND<0.50 <br /> 1/16/2007 11.76 30.41 0.00 -18.65 0.64 ND<50 .-- ND<0.50 ND<0.50 ND<0.50 ND<0.50 -- ND<0.50 <br /> 4/10/2007 11.76 30.10 0.00 -18.34 0.31 62 -- ND<0.50 ND<0.50 ND<0.50 2.2 -- ND<0.50 <br /> 8/27/2007 11.76 31.60 0.00 49.84 -1.50 1200 -- 0.67 ND<0.50 12 87 -- ND<0.50 <br /> 10/29/2007 11.76 32.19 0.00 -20.43 -0.59 1700 -- 1.4 ND<0.50 17 180 -- ND<0.50 <br /> 1/7/2008 11.76 31.50 0.00 -19.74 0.69 78 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 5/7/2008 . 11.76 29.94 0.00 -18.18 1.56 540 1.2 ND<0.50 5.9 14 ND<0.50 <br /> 8/4/2008 11.76 30.90 0.00 -19.14 -0.96 1900 -- 3.0 ND<0.50 49 130 -- ND<0.50 • <br /> 10/21/2008 11.76 31.40 0.00 -19.64 -0.50 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 _ -- ND<0.50 <br /> 2/10/2009 11.76 32.32 0.00 -20.56 -0.92 1400 -- 0.82 ND<0.50 27 190 -- ND<0.50 <br /> 4/16/2009 11.76 32.13 0.00 -20.37 0.19 1200 -- ND<0.50 ND<0.50 39 130 -- ND<0.50 <br /> 7/28/2009 11.76 33.15 0.00 -21.39 -1.02 620 ND<0.50 ND<0.50 13 ND<1.0 ND<0.50 <br /> 1/20/2010 11.76 32.90 0.00 -21.14 0.25 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<l.0 -- ND<0.50 <br /> 7/7/2010 11.76 31.11 0.00 -19.35 1.79 71 -- ND<0.50 ND<0.50 13 ND<1.0 __ ND<0.50 <br /> 1/20/2011 11.76 30.63 0.00 -18.87 1`t0.j8L LIQ -- 0.559 ND<0.50 36 1.0 -- ND<0.50 <br /> V W-7 'r� I.2 <br /> . (Screen Interval in feet:55.0-60.0) <br /> 8/21/1999 28.57 37000 2500 6100 610 7000 ND<250 510 <br /> 10/25/1999 -- 29.54 -- -- -- 33000 -- 2900 6800 680 7800 ND<500 4.7 <br /> 6991 - Page 52 of 54 _ <br /> ��' TRC <br />