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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through March 2005 <br /> Former 76 Station 6981 <br /> Date TQC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 80218 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/l) (µg/1) (µ8/1) (µg/1) (µg11) (µg11) (µg11) (µg11) <br /> MW-1 continued <br /> 04/25/96 1041 3675 000 -2634 <br /> 07/24/96 1041 37 15 000 -26 74 -040 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 10/23/96 1041 38 88 000 -2847 -173 __ __ __ __ __ __ __ Sampled Sem}-annually <br /> 01/20/97 1041 3552 000 -25 11 3 36 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 07/16197 1041 3272 000 -2231 -- ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 0 -- <br /> 10/15/97 1041 -- -- -- __ _ _ __ __ __ _ Inaccessible <br /> 12/08/97 1041 -- __ __ __ __ _ __ __ Inaccessible <br /> 03/05/98 1041 3046 000 -2005 -- ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 2 <br /> 05/27/98 1041 2671 000 -1630 -- ND<50 -- 3 5 ND<0 50 ND<0 50 ND<0 50 32 30 <br /> 07/21/98 1041 2677 000 -1636 -0 06 57 -- 2 2 098 ND<0 50 17 34 27 <br /> 10/14/98 1041 2775 000 -17 34 -098 ND<50 -- ND<0 50 ND<0 50 ND<0 50 069 21 20 <br /> 01/25/99 1041 2704 000 -1663 071 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 62 53 <br /> 04/19/99 1041 2453 000 -1412 251 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 25 24 <br /> 07/15/99 1041 25 81 000 -1540 -128 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 2 <br /> 10/25/99 1041 2740 000 -1699 -- ND<50 -- ND<0 50 ND<0 50 ND<0 50 076 5 1 3 8 <br /> 01/27/00 1041 27 10 000 -1669 030 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<2 5 3 <br /> 06/26/00 1041 2430 000 -13 89 2 80 ND<50 0 -- ND<o 500 ND<o 500 ND<o 500 ND<o Sao ND<5 0 ND<2 0 <br /> 09/22/00 1107 27 48 000 -1641 -252 2000 -- ND<5 0 ND<5 0 ND<5 0 110 ND<25 ND<2 0 <br /> 12/26/00 11 07 2743 000 -1636 0 05 379 -- ND<1 00 ND<1 00 ND<1 00 ND<1 00 ND<10 0 ND<2 0 <br /> 03/07/01 11 07 2723 000 -16 16 020 413 - 228 NT)<0 500 ND<o 500 ND<0 500 ND<5 0 ND<2 0 <br /> 06/26/01 1 1 07 28 16 000 -1709 -093 150 - 0 53 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 <br /> 09/12/01 11 07 3004 000 -1897 -1 88 310 -- 3 4 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 <br /> 12/12/01 1107 3037 000 -1930 -033 240 -- 1 3 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<I 0 <br /> 03/20/02 11 07 2918 000 -18 It 1 19 160 -- 2 4 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 <br /> seat Page 2 of 36 <br />