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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through March 2005 <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 8260E benzene Xylenes 8021E 8260E <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (µg11) 441) (Ag/1) (µg11) W/1) (µg/0 (µg/1) <br /> MW-4 continued <br /> 09/22/00 1163 28 14 000 -16 51 -240 ND<50 - ND<O 50 1 ND<O 50 099 ND<2 5 ND<2 0 <br /> 12/26/00 11 63 28 19 000 -1656 -005 ND<50 0 -- ND<o 500 ND<O 500 ND<O 500 ND<o 500 ND<5 0 ND<2 0 <br /> 03/07/01 1163 2793 000 -1630 026 ND<50 0 - ND<O 500 ND<O 500 ND<O 500 ND<O 500 ND<5 0 ND<2 0 <br /> 06/26/01 1163 28 88 000 -1725 -095 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<S 0 ND<2 0 <br /> 09/12/01 1163 3078 000 -19 15 -190 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 12/12/01 1163 3105 000 -1942 -027 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<1 0 <br /> 03/20/02 1163 2986 000 -1823 1 19 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 06/06/02 1163 3027 000 -1864 -041 -- ND<50 ND<O 50 22 ND<O 50 22 -- ND<2 0 <br /> 09/30/02 1 l 63 3278 000 -21 15 -251 -- ND<50 079 1 7 088 4 3 - ND<2 0 <br /> 12130/02 1163 3237 000 -2074 041 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<2 0 <br /> 03/29/03 1163 31 32 000 -1969 1 05 - ND<50 ND<O 50 ND<O 50 ND<O 50 1 3 -- ND<2 0 <br /> 06/25/03 1163 31 67 000 -2004 -035 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<I 0 -- ND<2 0 <br /> 09/24/03 1163 1401 000 -2239 -234 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 <br /> 12/30/03 11 63 33 51 000 -2188 050 - ND<50 ND<O 50 076 ND<O 50 25 -- 21 <br /> 03/09/04 1163 3260 000 -2097 091 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 <br /> 06/16/04 1163 33 26 000 -2163 -066 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 <br /> 09/20/04 1 1 63 36 12 000 -2449 -296 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 ND<O 50 <br /> 12/30/04 11 63 3560 000 -23 97 052 ND<50 -- ND<O 50 ND<O 50 ND<O 50 2 1 -- ND<O 50 <br /> 03/24/05 11 63 34 It 000 -2248 149 ND<50 - ND<O 50 ND<O 50 ND<O 50 ND<1 0 - ND<O 50 <br /> MW-5 (Screen Interval in feet 50 0-55 0) <br /> 02/21/90 -- -- -- -- -- 3600 -- 77 16 05 17 - -- <br /> 10/18/90 - - -- -- -- -- -- -- _ __ __ __ -_ Dry <br /> 11/19/90 -- - - -- - -- -- -- -- -- - Dry <br /> 12/27/90 - -- -- -- -- -- -- -- -- -- -- -- -- Dry <br /> seat Page 9 of 36 <br />