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T <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through March 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 802 i B 8260B <br /> Eievation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (11g11) (µg11) (µg/1) (µg11) (µg/1) (µg/1) (µg/l) <br /> MW-7 continued <br /> 04/25/94 11 82 4798 000 -36 16 -- 8300 -- 3700 ND<25 400 130 - -- <br /> 07/25/94 11 82 5046 000 -3864 -248 9300 -- 3300 54 420 120 -- - <br /> 10/26/94 11 82 51 63 000 -39 81 -1 17 3700 -- 1900 11 240 ND<10 -- -- <br /> 01/25/95 11 82 48 85 0 00 -3703 2 78 250 -- 29 1 1 8 2 1 -- - <br /> 04/26/95 11 82 4433 000 -3251 452 97 -- 2 4 074 ND<0 5 067 -- -- <br /> 07/26/95 11 82 45 38 000 -3356 -105 330 - 17 61 2 3 6 2 -- -- <br /> 10/25/95 1182 4624 000 -3442 -086 -- -- -- -- -- -- -- -- <br /> 01/24/96 11 82 43 29 000 -3147 2 95 76 1 8 ND<0 5 ND<0 5 055 - <br /> 04/25/96 11 82 3864 000 -26 82 -- -- - -- - -- <br /> 07124196 1182 39 04 000 -2722 -040 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 8 6 - <br /> 10/23/96 11 82 4084 000 -29 02 -1 80 -- -- - -- -- -- Sampled Semi-annually <br /> 01/20/97 11 82 37 14 0 00 -2532 370 ND<50 -- 059 ND<0 5 ND<0 5 ND<0 5 20 -- <br /> 07/16/97 11 82 3471 000 -2289 - ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 40 - <br /> 10/15/97 11 82 36 54 000 -24 72 -1 83 ND<50 ND<0 5 ND<0 5 ND<0 5 46 46 63 <br /> 12/08/97 11 82 3637 000 -2455 0 17 -- -- - -- -- -- -- <br /> 03/05/98 11 82 3198 000 -20 16 439 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 140 120 <br /> 05/27/98 11 82 2870 000 -1688 -- ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 46 53 <br /> 07/21/98 11 82 2875 000 -1693 -0 05 ND<50 - 069 088 ND<0 50 073 21 22 <br /> 10/14/98 11 82 2974 000 -1792 -099 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<0 50 33 33 <br /> 01/25/99 11 82 2880 000 -1698 094 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 40 40 <br /> 04/19/99 11 82 2641 000 -1459 239 ND<50 - 1 3 ND<0 50 ND<0 50 ND<0 50 160 120 <br /> 07/15/99 11 82 2780 000 -1598 -139 ND<50 -- ND<0 50 ND<0 50 ND<0 50 066 260 320 <br /> 10/25/99 11 82 2948 000 -1766 -- ND<50 -- 3 8 0 84 ND<0 50 2 3 240 250 <br /> 01/27/00 11 82 2893 000 -17 11 0 55 ND<50 -- 4 2 073 ND<0 50 2 220 210 <br /> 6981 Page 15 of 36 <br />