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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) (8260B) <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) (µg/1) <br /> VW-4 continued <br /> 10/25/1999 -- 29.36 0.00 __ 22000 -- ND<50 ND<50 70 290 ND<250 27 • <br /> 1/27/2000 -- 28.85 0.00 -- -- 19000 -- 66 ND<50 190 1300 _ 43 51 <br /> 6/26/2000 -- 26.09 0.00 -- -_ 3470 -- ND<5.00 ND<5.00 ND<5.00 43.2 683 1110 <br /> 9/22/2000 11.76 28.65 0.00 -16.89 -- 12000 -- ND<100 ND<100 ND<100 200 2800 160 <br /> 12/26/2000 .11.76 28.58 0.00 -16.82 0.07 11100 -- ND<12.5 ND<12.5 27.5 167 140 172 <br /> 3/7/2001 11.76 2$27 0.00 -16.51 0.31 12700 -- 12.8 ND<10.0 79.4 413 350 321 <br /> 6/26/2001 11.76 29.32 0.00 -17.56 -1.05 17000 -- ND<20 ND<20 27 170 230 330 <br /> 9/12/2001 11.76 31.20 0.00 - -19.44 -1.88 6900 -- 8.8 ND<5.0 62 230 240 310 <br /> 12/12/2001 11.76 31.47 0.00 -19.71 -0.27 7000 -- 24 ND<10 200 64 220 270 <br /> 3/20/2002 11.76 30.21 0.00 -18.45 1.26 170 -- ND<0.50 ND<0.50 ND<0.50 2.4 27 - 36 <br /> 6/6/2002 11.76 30.67 0.00 -18.91 -0.46 -- ND<50 ND<0.50 ND<0.50 0.5 3.9 -- 40 <br /> 9/30/2002 11.76 -- -- __ -- -- - Dry <br /> 12/30/2002 11.76 -- -- __ __ _ Dry <br /> 3/29/2003 11.76 31.74 0.00 -19.98 -- -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<2.0 • <br /> 6/25/2003 11.76 32.08 0.00 -20.32 -0.34 -- -- - __ __ __ Insufficient Water <br /> 9/24/2003 11.76 34.45 0.00 -22.69 -2.37 -- ND<50 ND<0.50 0.61 ND<0.50 ND<1.0 -- 2.9 <br /> 12/30/2003 11.76 33.95 0.00 -22.19 0.50 -- ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- 6.0 <br /> 3/9/2004 11.76 33.02 0.00 -21.26 0.93 -- 870 0.73 ND<0.50 9.0 180 -- 4.3 <br /> 6/16/2004 11.76 33.66 0.00 -21.90 -0.64 -- 930 ND<0.50 ND<0.50 9.1 86 -- 3.2 <br /> 9/20/2004 11.76 -- -- __ __ _ __ __ __ _ __ __ _ Dry well <br /> 12/30/2004 11.76 -- -- __ __ __ __ __ _ Dry well <br /> 3/24/2005 11.76 34.58 0.00 _22,82 __ 470 -- ND<0.50 ND<0.50 7.3 31 -- 0.88 _ <br /> 6/28/2005 11.76 33.05 0.00 -21.29 1.53 ND<50 -- ND<0.50 ND<0.50 ND<0.50 ND<1.0 -- ND<0.50 <br /> 6981 Page 51 of 54 TRC <br />