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i <br /> 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 8260B benzene Xylenes 80218 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (pg/1) (41) (µg11) (µg11) (µg11) (µg/1) (µg/1) <br /> MW-8 continued <br /> 10/14/98 W38 2757 000 -17 19 -092 ND<50 - ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<2 5 ND<2 0 <br /> 01/25/99 1038 26 83 000 -1645 074 ND<50 - ND<O 50 ND<O 50 ND<O 50 1 ND<2 5 ND<2 0 <br /> 04/19/99 1038 2451 000 -14 13 232 ND<50 -- ND<0 50 ND<O 50 ND<O 50 ND<O 50 12 7 8 <br /> 07/15/99 1038 25 73 000 -1535 -122 ND<50 -- ND<O 50 0 6 ND<O 50 ND<O 50 ND<2 5 3 1 <br /> 10/25/99 1038 2741 000 -1703 -- ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 2 5 ND<2 0 <br /> 01/27/00 t0 38 2701 000 -1663 040 ND<50 -- ND<O 50 082 ND<O 50 087 ND<2 5 ND<2 0 <br /> 06/26/00 1038 24 19 000 -13 81 2 82 ND<50 0 -- ND<a 500 0 819 ND<O 500 0 853 ND<5 0 ND<2 0 <br /> 09/22/00 1038 2664 000 -1626 -245 ND<50 -- ND<O 50 093 ND<O 50 1 1 ND<2 5 ND<2 0 <br /> 12/26/00 1038 2666 000 -1628 -002 ND<50 0 __ ND<0 500 ND<O 500 ND10 500 ND<O 500 ND<5 0 ND<2 0 <br /> 03/07/01 1038 2641 000 -1603 025 ND<50 0 -- ND<O 500 ND<0 500 ND<0 500 ND<a 500 ND<5 0 ND<2 0 <br /> 06/26/01 1038 2732 000 -1694 -091 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 09/12/01 1038 29 17 000 -1879 -185 ND<50 -- ND<O 50 12 ND<O 50 099 ND<5 0 ND<2 0 <br /> 12/12/01 1038 2949 000 -1911 -032 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<1 0 <br /> 03/20/02 1038 2834 000 -1796 1 15 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<O 50 ND<5 0 ND<2 0 <br /> 06/06/02 1038 28 74 000 -1836 -040 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 - ND<2 0 <br /> 09/30/02 1038 31 17 000 -2079 -243 -- 120 4 4 6 5 4 4 16 -- ND<2 0 <br /> 12/30/02 1038 3077 000 -2039 040 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<2 0 <br /> 03/29/03 1038 2984 000 -1946 093 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<2 0 <br /> 06/25/03 1038 30 10 000 -1972 -026 - ND<50 ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<2 0 <br /> 09/24/03 1038 3239 000 -2201 -229 -- ND<50 ND<O 50 1 1 ND<O 50 ND<I 0 -- ND<2 0 <br /> 12/30/03 1038 3196 000 -21 58 043 -- ND<50 ND<O 50 1 3 069 2 3 -- ND<2 0 <br /> 03/09/04 1038 31 07 000 -2069 0 89 ND<50 ND<O 50 ND<O 50 ND<O 50 14 -- ND<2 0 <br /> 06/16/04 1038 31 67 000 -21 29 -060 -- 85 ND<O 50 0 76 ND<O 50 ND<1 0 -- ND<O 50 <br /> 09/20/04 1038 3442 000 -2404 -275 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 <br /> ggg� Page IS of 36 <br />