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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYnCAL RESULTS February 1990 Through December 2004 Former 76 Statton 6981 Date T9X Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Muchness water in 82608 benzene Xylenes 8021B 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg/1) (µg/1) (µg/1) (µ8/l) (µg11) (µg(l) (µg11) (µg/1) MW-6 continued 10/23/96 1143 4011 000 -2868 -171 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- 01/20/97 1143 3668 000 -2525 343 ND<50 -- ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<5 0 -- 07/16/97 1143 3403 000 -22 60 -- ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 — 10/15/97 1143 3579 000 -2,436 -176 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND--O 5 ND<5 0 ND<2 0 12/08/97 ' 1143 3565 000 -2422 014 -- — — — -- -- -- -- 03105/98 1143 3162 000 -2019 403 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<0 50 44 ND<2 0 05/27/98 1143 28 19 000 -1676 -- ND<50 -- ND<0.50 ND<O 50 ND<O 50 ND<0 50 ND<2 5 ND<2 0 07/21/98 1143 2817 000 -1674 002 NDC50 -- ND<O 50 07 ND<O 50 07 ND<5 0 ND<2 0 10/14/98 1143 2913 000 -1770 -096 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<2 5 ND<2 0 01/25/99 1143 2822 000 -16 79 091 ND<50 -- ND<050 ND<O 50 ND<O 50 ND<O 50 ND<2 5 ND<2 0 04/19/99 1143 2592 000 -1449 230 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<2 5 ND<2 0 07/15/99 1143 2720 000 -1577 -128 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<2 5 ND<2 0 10/25/99 1143 2883 000 -1740 -- ND<50 -- ND<O 50 ND<O 50 ND<O 50 074 ND<2 5 27 01/27/00 1143 2835 000 -1692 048 ND<50 — ND<0.50 065 ND<O 50 16 ND<2 5 ND<2 0 06/26/00 I143 2564 000 -1421 271 ND<50 0 -- NDrO 500 0 671 ND<0.500 0 787 ND<5 0 ND<2 0 09!22100 1143 2810 000 -1667 -246 ND<50 — ND<O 50 093 ND<O 50 1 1 ND<2 5 ND<2 0 12/26/00 1143 2801 000 -1658 009 ND<50 0 -- ND<O 500 ND<500 ND<0.500 Nn<O 500 ND<5 0 ND<2 0 03107/01 1143 2775 000 -1632 026 ND<50 0 — ND<O 500 ND<O 500 ND<asOO ND<0 500 ND<5 0 ND<2 0 06126/01 1143 2870 000 -17.27 -095 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 09/12/01 1143 3059 000 -1916 -189 ND<50 — ND<0.50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 12/12/01 1143 3086 000 -1943 -027 ND<50 — ND<050 12 ND<O 50 17 ND<5 0 ND<1 0 03/20/02 1143 2967 000 -1924 1 19 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 06/06/02 1143 3010 000 -18 67 -043 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<10 -- ND<2 0 09/30/02 1143 3256 000 -21 13 -246 -- 190 76 10 62 27 — ND<2 0 ssei Page 13 of 35