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i <br /> Table 2 ` <br /> HISTORIC FLUID LEVELS AND <br /> SELECTED ANALYTICAL RESULTS <br /> February 1990 Through June 2005 <br /> Former 76 Station 6981 <br /> Date TOC 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 8021B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (µg/1) (µg11) (pg/1) (µg11) (µg/1) (µg/l) (µg/1) <br /> MW-1 continued <br /> 04/25/96 1041 3675 000 -2634 466 <br /> 07/24/96 1041 3715 000 -2674 -040 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 10/23/96 1041 3888 000 -2847 -173 -- -- -- __ __ __ __ Sampled Semi-annually <br /> 01/20/97 1041 3552 000 -25 11 336 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 07/16/97 1041 3272 000 -2231 2 80 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 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<O 50 ND<O 50 ND<0 50 ND<O 50 ND<2 5 2 <br /> 05/27/98 1041 2671 0 00 -1630 375 ND<50 -- 3 5 ND<O 50 ND<O 50 ND<O 50 32 30 <br /> 07/21/98 1041 2677 0 00 -1636 -006 57 -- 2 2 0 98 ND<O 50 1 7 34 27 <br /> 10/14/98 1041 2775 000 -1734 -098 ND<50 -- ND<O 50 ND<O 50 ND<O 50 069 21 20 <br /> 01/25/99 1041 2704 000 -1663 071 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 62 53 <br /> 04/19/99 1041 2453 000 -14 12 251 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 25 24 <br /> 07/15/99 1041 2581 000 -1540 -128 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<2 5 2 <br /> 10/25/99 1041 2740 000 -1699 -159 ND<50 -- ND<O 50 ND<O 50 ND<O 50 076 5 1 38 <br /> 01/27/00 1041 27 10 000 -1669 030 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 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 500 ND<5 0 ND<2 0 <br /> 09/22/00 11 07 2748 000 -1641 -252 2000 -- ND<5 0 ND<5 0 ND<5 0 110 ND<25 ND<2 0 <br /> 12/26/00 1107 2743 000 -1636 0 05 379 -- ND<l 00 ND<l 00 ND<1 00 ND<l 00 ND<10 0 ND<2 0 <br /> 03/07/01 11 07 2723 000 -16 16 020 413 228 ND<O 500 ND<O 500 ND<O 500 ND<5 0 ND<2 0 <br /> 06/26/01 11 07 28 16 000 -1709 -0 93 150 -- 053 ND<O 50 ND<0 50 ND<O 50 ND<5 0 ND<2 0 <br /> 09/12/01 1107 30 04 000 -1897 -1 88 310 -- 3 4 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 12/12/01 1107 3037 000 -1930 -033 240 - 1 3 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<1 0 <br /> 03!20102 1107 29 18 000 -18 11 1 19 160 -- 2 4 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 8981 Page 2 of 37 <br />