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i <br /> 0 <br /> F <br /> Table 2 <br /> ffiSTORIC 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 m 8260B benzene Xylenes 802113 9260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (ug/1) (1g11) (µg11) (µg11) (µg11) (µg11) (µg11) (11g11) <br /> MW-7 continued <br /> 12/12/01 1182 3154 000 -19 72 -023 ND<50 — ND<O 50 ND<O 50 ND<O 50 ND<O 50 150 190 <br /> 03/20/02 1182 3036 0 00 -1854 1 18 ND<50 — ND<0 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 06/06/02 1182 3087 000 -1905 -051 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 <br /> 09/30/02 1182 3340 000 -2158 -253 360 49 32 10 40 -- 17 <br /> 12/30/02 1182 3290 000 -2108 050 — ND<50 ND<O 50 NIXO 50 ND<O 50 ND<l 0 -- ND<2 0 <br /> 03/29/03 1182 3187 000 -2005 103 -- ND<50 ND<O 50 13 ND<O 50 13 -- ND<2 0 <br /> 06/25103 1182 3032 000 -1850 155 — ND<50 NIXO 50 ND<O 50 ND<O 50 ND<l 0 ND<2 0 <br /> 09/24/03 1182 3458 000 -2276 -426 -- ND<50 ND<O 50 062 ND<O 50 ND<1 0 -- ND<2 0 <br /> 12/30/03 1182 3406 000 -2224 052 — ND<50 056 29 070 3 3 — ND<2 0 <br /> 03/09/04 1182 33 11 000 -2129 095 - ND<50 ND<O 50 NIXO 50 NIXO 50 ND<1 0 — ND<2 0 <br /> 06/16/04 1182 33 77 000 -2195 -066 — 57 ND<O 50 ND<0 50 ND<O 50 15 — ND<0 50 <br /> 09/20/04 1182 3672 000 -2490 -295 ND<50 — ND<O 50 ND<0 50 ND<O 50 ND<l 0 — ND<0 50 <br /> 12/30/04 1182 36 05 000 -2423 067 ND<50 — 052 ND<O 50 0 80 3 7 -- ND<O 50 <br /> MW-8 (Screen Interval in feet 49 0-69 0) <br /> 04/16/92 -- — -- -- -- — — — -- — -- -- — <br /> 07/30/92 -- — -- -- -- ND<50 — 17 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 10/21/92 -- - — — — ND<50 — ND<0 5 0 8 ND<O 5 ND<O 5 -- <br /> 01/13/93 — -- -- — ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 — — <br /> 04/26/93 1038 4880 000 -3842 — 120 -- 1 1 ND<O 5 ND<O 5 ND<O 5 — — <br /> 07/26/93 1039 4979 000 -3941 -099 90 -- 0 6 ND<O 5 ND<O 5 ND<O 5 — — <br /> 10/20/93 1038 5028 000 -3990 -049 92 -- 4 072 076 18 — — <br /> 01/17/94 1038 4785 000 -3747 243 620 -- 3 9 27 11 48 — -- <br /> 02/28/94 1038 4677 000 -3639 108 88 — ND<O 5 ND<O 5 ND<O 5 09 — — <br /> 04125l94 1038 4581 000 -35 43 096 94 — 067 12 052 24 — — <br /> 89e1 Page 16 of 35 <br />