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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1940 Through September 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 8021E 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (p&4) (RA (41) (ug1l) (µg,11) (µ8/l) (Figs) (FlgA) <br /> MW-7 continued <br /> 10/23/96 1182 4084 000 -2902 -180 — — — — -- — -- Sampled Senn-annually <br /> 01120197 1182 3714 000 -2532 3 70 NI3<50 — 0 59 ND<O 5 NDN 5 ND<O 5 20 — <br /> 07/16/97 1182 3471 0 00 -2289 -- ND<50 — ND<O 5 ND<O 5 NDN 5 ND<O 5 40 -- <br /> 10/15/97 1182 3654 000 -2472 -183 ND<50 — ND<O 5 ND<O 5 ND<05 46 46 63 <br /> 1 V08197 1182 3637 000 -24 55 017 — — — — -- -- -- -- <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 28 70 000 -1688 — ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 46 53 <br /> 07/21/98 1182 28 75 000 -1693 -005 ND<50 — 069 088 ND<O 50 0 73 21 22 <br /> 10/14/98 1182 29 74 000 -1792 -099 ND<50 — ND<O 50 ND<O 50 ND<O 50 NDN 50 33 33 <br /> 01/25/99 1182 2880 000 -1698 094 ND<50 — ND<0 50 ND<O 50 ND<O 50 ND<0 50 40 40 <br /> 04/19/99 1182 2641 000 -1459 239 ND<50 — 13 ND<O 50 NDN 50 ND<O 50 160 120 <br /> 07/15/99 1182 2780 000 -1598 -139 ND<50 — NDN 50 ND<O 50 ND<O 50 066 260 320 <br /> 10/25/99 1182 2948 000 -1766 — ND<50 — 3 8 084 ND<O 50 2 3 240 250 <br /> 01/27100 1182 2893 000 -1711 0 55 ND<50 — 42 0 73 ND<O 50 2 220 210 <br /> 06/26/00 1 L 82 26 23 000 -1441 270 ND<50 0 — 215 112 ND<0 500 152 131 109 <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 1182 2864 000 -1682 0 13 ND<50 0 — 224 ND<O$00 NIX0 500 rm<v 500 952 733 <br /> 03/07/01 1182 2835 000 -1653 029 ND<50 0 — 0 659 ND<O 500 NIX0 500 ND<0 500 549 585 <br /> 06/26/01 1182 29 36 000 -1754 -101 NIK50 — 3 5 ND<O 50 ND<O 50 ND<0 50 130 140 <br /> 09/12/01 1 182 3131 000 -1949 -195 70 — ND<O 50 ND<O 50 ND<0 50 ND<O 50 200 200 <br /> 12/12/01 1182 3154 000 -1972 -0.23 ND<50 — NDN 50 NDN 50 ND<O 50 NDN 50 150 190 <br /> 03/20/02 1182 3036 000 -1854 118 ND<50 — NDN 50 ND<O 50 ND<O 50 ND<0-50 ND<5 0 ND<2 0 <br /> 06/06/02 1182 3087 000 -19 05 -051 — ND<50 ND<0.50 ND<O 50 ND<O 50 ND<10 — ND<2 0 <br /> 09/30/02 1182 3340 0 00 -2158 -2.53 — 360 49 32 10 40 — 17 <br /> east Page 15 of 35 <br />