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i <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through September 2004 <br /> Former 76 Staton 6981 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Conmxnts <br /> Sampled Elevation Water Thiclmess water in 8260B benzene Xylenes 802113 8260B <br /> Elevation Elevation <br /> (feet) (feet) (fest) (feet) (feet) (µg/1) (ug/1) (Ngil) (µ5/l) (µPfl) (µ8/l) (µgr) (µg11) <br /> MW-8 continued <br /> 10/25/95 1038 4394 000 -3356 -084 <br /> 01/25/96 1038 41.14 000 -3076 — ND<50 -- ND<O 5 ND<O 5 ND<O 5 065 -- -- <br /> 04l25/96 1038 3659 000 -2621 455 — -- — -- — — - -- <br /> 07/24/96 1038 3688 000 -2650 -029 ND<50 — ND<0 5 ND<O 5 ND<0 5 NDN 5 ND<5 0 — <br /> 10/23/96 1038 3864 000 -2826 -176 — — — -- -- — -- -- Sampled Senn-annually <br /> 01/20/97 1038 3517 000 -2479 347 290 — 43 082 ND<0 5 45 93 -- <br /> 07/16/97 1038 3247 000 -2209 — ND<50 — ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 — <br /> 10/15/97 1038 — -- — -- _ _ ._ _ _ _ _ Inaccessible <br /> 12/08/97 1038 -- -- -- -- _ _ _ _ _ Inaccessible <br /> 03/05/98 1038 3007 000 -1969 -- ND<50 — ND<O 50 NDN 50 ND<O 50 NDN 50 ND<2 5 ND<2 0 <br /> 05/27/98 1038 2661 000 -1623 -- ND<50 — ND<O 50 NDN 50 NDN 50 ND<O 50 ND<2 5 ND<2 0 <br /> 07/21/98 1038 2665 000 -1627 -004 73 -- 093 4 072 43 13 89 <br /> 10/14/98 1038 2757 000 -1719 -092 ND<50 — NDN 50 ND<O 50 ND<O 50 NDN 50 ND<2 5 ND<2 0 <br /> OI/25/99 1038 2693 000 -1645 074 ND<50 — ND<O 50 NDN 50 NDN 50 1 ND<2 5 ND<2 0 <br /> 04/19/99 1038 2451 000 -1413 232 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 12 78 <br /> 07/15/99 1038 2573 000 -1535 -122 ND<50 -- ND<O 50 06 ND<O 50 ND<O 50 ND<2 5 31 <br /> 10/25/99 1038 2741 000 -1703 -- ND<50 -- ND<0 50 NDN 50 ND<O 50 NDN 50 ND<2 5 ND<2 0 <br /> 01/27/00 1038 2701 000 -1663 040 ND<50 — ND<O 50 0 82 ND<O 50 087 ND<2 5 ND<2 0 <br /> 06/26/00 1038 2419 000 -13 81 282 ND<50 0 — ND--00$00 0 819 ND<0.500 0 853 ND<5 0 ND<2 0 <br /> 09/22/00 1038 2664 000 -1626 -245 ND<50 — ND<O 50 093 NDN 50 11 ND<2 5 ND<2 0 <br /> 12/26/00 1038 2666 000 -1628 -002 ND<50 0 — ND0s00 ND<0 500 ND<O 500 NDms00 ND<5 0 ND<2 0 <br /> 03/07/01 1038 2641 000 -1603 025 ND<50 0 -- NDaa 500 ND<0 50a ND<O 500 NDS 500 ND<5 0 ND<2 0 <br /> 06/26/01 10.38 2732 000 -1694 .091 ND<50 — ND<O 50 ND<O 50 NDN 50 ND<O 50 ND<5 0 ND<2 0 <br /> 09/12/01 10.38 2917 000 -1879 -185 ND<50 — ND<O 50 12 ND<O 50 099 ND<5 0 ND<2 0 <br /> seal Page 17 of 35 <br /> I <br />