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! ! ! <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through December 2004 <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) (41) 441) (µg11) (pg/1) (µg/1) (Kon) (ASA) <br /> MW-7 continued <br /> 10/25/95 1182 4624 000 -3442 -086 -- — — __ _ -- <br /> 01/24/96 1182 43 29 000 -3147 295 76 — 18 ND<O 5 ND<O 5 055 -- - <br /> 04125/96 1182 3864 000 -2682 — -- — — -- — -- -- — <br /> 07/24/96 1182 3904 000 -2722 -040 ND<50 — ND<O 5 ND<O 5 ND<0-5 NDN 5 86 — <br /> 10/23/96 1182 4084 000 -2902 -180 -- -- — — -- -- — Sampled Sean-annually <br /> 01/20/97 1182 3714 000 -2532 370 ND<50 — 059 ND<O 5 ND<O 5 NDN 5 20 — <br /> 07/16/97 1182 3471 000 -2189 — ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 40 — <br /> 10/15/97 1182 3654 000 -2472 -183 ND<50 — ND<O 5 ND<0 5 ND<O 5 46 46 63 <br /> 12/08/97 1182 3637 000 -2455 017 - <br /> 03/05/98 1182 3198 000 -2016 439 ND<50 - ND<O 50 ND<O 50 ND<O 50 ND<O 50 140 120 <br /> 05/27/98 1182 2870 000 -1688 -- ND<50 -- ND<O 50 ND<O 50 ND<0 50 ND<0 50 46 53 <br /> 07/21198 1182 2875 000 -1693 -005 ND<50 -- 069 088 ND<O 50 073 21 22 <br /> 10/14/98 1182 2974 000 -1792 -099 ND<50 -- ND<0 50 ND<O 50 ND<0 50 ND<0 50 33 33 <br /> 01/25/99 It 82 2880 000 -1698 094 NI?<50 -- ND<O 50 ND<O 50 ND<O 50 ND<0 50 40 40 <br /> 04/19/99 1182 2641 000 -1459 239 NU<50 — 13 ND<O 50 ND<O 50 ND<O 50 160 120 <br /> 07/15/99 1182 2780 000 -1598 -139 ND<50 -- ND<O 50 ND<O 50 ND<O 50 066 260 320 <br /> 10/25/99 11 82 2948 000 -1766 — ND<50 -- 38 084 ND<O 50 23 240 250 <br /> 01/27100 1182 2893 000 -1711 055 ND<50 -- 42 073 ND<O 50 2 220 210 <br /> 06/26/00 1182 2623 000 -1441 270 ND<50 0 — 215 1 12 ND<O 500 152 131 109 <br /> 09/22/00 1182 2877 000 -1695 -254 ND<50 — 45 ND<O 50 ND<O 50 12 130 110 <br /> 12/26/00 11 82 2864 000 -1682 0 13 ND<50 0 — 224 ND<O 500 ND<O 500 ND<0 500 952 733 <br /> 03/07/01 11 82 2835 000 -1653 029 ND<50 0 — 0 659 ND<0 500 ND<0 500 ND<O 50D 549 585 <br /> 06/26/01 1182 2936 000 -1754 -101 ND<50 -- 35 ND<O 50 ND<O 50 ND<0 50 130 140 <br /> 09/12/01 1182 3131 000 -1949 -195 70 — ND<O 50 ND<0 50 ND<0 50 ND<O 50 200 200 <br /> 6981 Page 15 of 35 <br />