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Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through June 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 8021 B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (11g11) (µg/1) (µg/1) (118/1) (µg/1) (µg/1) <br /> MW-9 continued <br /> 03/20/02 1176 29 86 -- -1810 1 22 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<O 50 ND<5 0 ND<2 0 <br /> 06/06/02 1176 3031 -- -1855 -045 -- ND<50 ND<O 50 ND<O 50 ND<0 50 ND<1 0 - ND<2 0 <br /> 09/30/02 11 76 32 64 - -2088 -233 160 5 5 82 4 5 20 - ND<2 0 <br /> 12/30/02 1176 32 85 -- -21 09 -021 -- -- -- -- -- <br /> 03/29/03 11 76 3141 -- -1965 1 44 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<I 0 -- ND<2 0 <br /> 06/25/03 11 76 3166 -- -1990 -025 -- ND<50 ND<O 50 ND<O 50 ND<O 50 ND<I 0 -- ND<2 0 <br /> 09/24/03 1176 3396 000 -2220 -230 -- ND<50 ND<O 50 054 ND<O 50 ND<1 0 -- ND<2 0 <br /> 12/30/03 11 76 33 54 000 -21 78 042 -- 77 ND<O 50 1 3 ND<O 50 19 -- ND<2 0 <br /> 03/09/04 11 76 3255 000 -2079 099 - ND<50 ND<O 50 ND<O 50 ND<0 50 1 2 - N13<2 0 <br /> 06/16/04 1176 3321 000 -2145 -066 -- 60 ND<O 50 064 ND<O 50 ND<1 0 - ND<O 50 <br /> 09/20/04 11 76 3608 000 -2432 -2 87 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 1 8 <br /> 12/30/04 11 76 3550 000 -2374 058 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 1 1 <br /> 03/24/05 11 76 34 10 000 -2234 1 40 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- 091 <br /> 06/28/05 1176 3254 000 -2078 1 56 ND<50 0 14J ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 <br /> MW-10 (Screen Interval in feet DNA) <br /> 10/21/92 -- -- -- - -- ND<50 -- ND<O 5 ND<O 5 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 1044 4825 000 -3781 - ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 07/26/93 1044 4922 000 -3878 -097 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 10/20/93 1044 4968 000 -3924 -046 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 --01/17/94 1044 4729 000 -3685 239 250 -- 4 2 3 12 53 -- -- <br /> 02/28/94 1044 4624 000 -35 80 1 05 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<0 5 -- -- <br /> 04/25/94 1044 4530 000 -3486 0 94 ND<50 -- ND<O 5 ND<O 5 ND<O 5 1 1 - <br /> 07/25/94 1044 4768 000 -3724 -238 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 <br /> 6981 Page 21 of 37 <br />