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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 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 to 8260B benzene Xylenes 8021B 8260E <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) 49/1) (µ9l1) (µ9l1) (µ€l1) (µms) W11) (µms) <br /> MW-11 continued <br /> 07/2M96 1123 3891 000 .2768 -036 ND<50 — ND<O 5 ND<O 5 NDN 5 NDN 5 ND<5 0 -- <br /> I <br /> 10/23/96 1123 4064 000 -2941 -173 ND<50 -- ND<D 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 01/20/97 1123 3718 000 -2595 346 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 07/16l97 — -- — -- — -- - ._ — — -- - -- Paved Over <br /> — <br /> l D/15/97 <br /> Paved Over <br /> f -- -- — `- "- — — -- — -- — Paved Over <br /> 12/08/97 -- — — — -- — -- -- -- -- -- <br /> 03/05/98 — — — -- — -- — — -- -- — — -- Inaccessible <br /> 03/16/98 1123 3152 000 -2029 — 240 — 97 16 23 12 32 ND<10 <br /> 05/27/98 1123 2894 000 -1771 258 230 — 13 17 44 16 85 17 <br /> 07121!98 1123 2885 000 -1762 009 ND<5O -- NDN 50 NDN 50 ND<O 50 ND<050 NDS 0 ND<2 0 <br /> 10/14/98 1123 2982 000 -1859 -097 ND<50 — ND<0 SO ND<O 50 ND<O 50 ND<O 50 ND<2 5 ND<2 0 <br /> 01/25/99 1123 2874 000 -1751 108 ND<50 — NDN 50 ND<O 50 ND<0 50 082 ND<2 5 ND<2 0 <br /> 0449!99 1123 2646 000 -1523 228 ND<50 -- ND<O 50 ND<O 50 ND<0 50 NDN 50 ND<2 5 ND<2 0 <br /> 07/15/99 1123 2776 000 -1653 -130 ND<50 ND<O 50 NDN 50 ND<O 50 NDN 50 ND<2 5 ND<2 0 <br /> 10/25/99 1123 2944 000 -1821 -- ND<50 — ND<0 50 ND<O 50 056 099 ND<2 5 ND<2 0 <br /> 01/27/00 1123 2993 000 -1760 061 ND<50 — NDN 50 NDN 50 ND<O 50 NDN 50 ND<-S 4 <br /> 06/26/00 1123 2625 000 -1502 258 ND<50 0 -- ND<O 500 ND<O 500 ND<G 500 ND<G 500 ND<5 0 ND<2 0 <br /> I <br /> 09/22(00 1123 2876 000 -1753 -251 NNSO — NDN 50 13 ND<O 50 14 ND<2 5 ND<2 0 <br /> 12/26/00 1123 2858 000 -1735 018 ND<50 0 — rtD<o 50o rI)<0 500 ND<0s00 rmw 500 ND<5 0 ND<2 0 <br /> 03/07/01 1123 28.25 000 -1702 033 ND<50 0 -- ND<O S00 187 ND<O 500 156 ND<5 0 ND<2 0 <br /> 06/26/01 1123 2927 000 -1804 -102 ND<50 -- NDN 50 ND<O 50 ND<O 50 NDN 50 ND<5 0 ND<2 0 <br /> 09/12/01 1123' 3121 000 -1999 -194 ND<50 ND<O 50 49 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> I2112101 1123 3 141 000 -2018 -020 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<10 <br /> 03/20/02 1123 3019 000 -1896 122 ND<50 — ND<O 50 ND<O 50 ND<O 50 NAN 50 ND<5 0 ND<2 0 <br /> 0981 Page 22 of 35 <br />