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Table 2 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS September 1996 Through August 2445 76 Station 5886 Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021E 8260B Elevation Elevation (feet) (feet) (feet) (feet) (feet) (µg11) (11g11) (µg11) (µg11) (Ag/1) {µg11) (µg11) (µg11) MW-6S continued 08/22/05 0 13 647 000 -634 -036 ND<50 -- 0 143 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 MW-7D (Screen Interval in feet 23 0-25 5) 05/02/97 226 927 000 -701 -- ND -- ND ND ND ND ND -- 09/02/97 226 1131 000 -905 -2 04 ND -- ND ND ND ND ND -- 12/01/97 226 9 76 000 -750 155 ND -- ND ND ND ND ND -- 03/25/98 226 781 000 -5 55 195 ND -- ND ND ND ND ND ND 06/17/98 2 26 882 000 -656 -101 ND ND ND ND ND ND ND 09/01/98 226 964 000 -738 -082 ND -- ND ND ND ND ND ND 12/03/98 226 895 000 -669 069 ND -- ND ND ND ND ND 38 03/01/99 226 794 000 -568 101 ND -- ND ND ND ND ND ND 04/15/99 276 865 000 -589 -021 -- -- -- -- -- -- -- -- 06/01/99 276 9 47 000 -671 -082 ND -- ND ND ND ND ND ND 08/16/99 2 76 969 000 -6 93 -022 ND -- ND ND ND ND ND ND 11/29/99 276 957 000 -681 0 12 ND -- ND ND ND ND ND ND 02/28/00 2 76 684 000 -408 2 73 ND -- ND ND ND ND ND ND 05/10/00 276 878 000 -602 -194 ND -- ND ND ND ND ND ND 08/03/00 276 941 000 -665 -0 63 ND -- ND ND ND ND ND ND 11/16/00 2 76 896 000 -620 045 ND -- ND 051 ND ND ND ND 02/05/01 2 76 885 000 -6 09 0 1 t ND ND ND ND ND ND ND 05/07/01 276 866 000 -590 0 19 ND -- ND ND ND ND ND ND 08/20/01 276 986 000 -710 -120 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 11/19/01 276 936 000 -660 050 ND-<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<1 0 02111/02 276 896 000 -620 040 ND<50 -- ND<0 50 13 ND<0 50 097 ND<2 5 ND<2 0 05/02/02 2 76 899 0 00 -6 23 -003 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 5886 Page 18 of 32