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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 8260B benzene Xylenes 8021B 8260B <br /> Elevation Elevation <br /> (Feet) (feet) (feet) (feet) (feet) (41) (µg11) (µg11) (µg/l) (µg11) (lig/l) (µg/1) (µg/1) <br /> MW-8 continued <br /> 12/30/04 1038 3391 000 -23 53 051 ND<50 ND<O 50 ND<O 50 ND<O 50 ND<1 0 -- ND<O 50 <br /> 03/24/05 1038 3250 000 -22 12 1 41 ND<50 -- ND<O 50 ND<O 50 ND<O 50 ND<l 0 -- ND<O 50 <br /> MW-9 (Screen Interval in feet 50 0-70 0) <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 11 76 5052 - -38 76 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 07/26/93 1176 51 50 -- -39 74 -098 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- - <br /> 10/20/93 1176 51 99 - -4023 -049 ND<50 -- ND<O S ND<O 5 ND<O 5 ND<O 5 <br /> 01/t7/94 11 76 4958 -- -37 82 241 280 - 4 9 15 91 45 -- -- <br /> 02/28/94 1176 4850 -- -3674 108 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 04/25/94 11 76 4751 - -35 75 099 ND<50 -- ND<O 5 094 ND<O 5 l 3 -- -- <br /> 07/25/94 11 76 4987 -- -38 11 -236 ND<50 - ND<O 5 ND<O 5 ND<O 5 ND<O 5 - <br /> 10/26/94 11 76 5103 -- -3927 -1 16 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 01/25/95 11 76 4932 -- -3656 271 ND<50 -- ND<O 5 ND<0 5 ND<O 5 ND<0 5 - -- <br /> 04/26/95 1176 4344 - -3168 4 88 ND<50 -- 12 4 l ND<O 5 3 3 -- -- <br /> 07/26/95 11 76 4461 - -32 85 -1 17 ND<50 -- ND<O 5 14 ND<O 5 12 - - <br /> 10/25/95 11 76 45 54 - -33 78 -093 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- - <br /> 01/24/96 11 76 4274 -- -3098 2 80 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 -- -- <br /> 04/25/96 11 76 3778 - -26 02 -- ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<40 - <br /> 07/24/96 11 76 3829 - -26 53 -051 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 10/23/96 11 76 40 18 -- -2842 -1 89 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 01/20/97 11 76 36 17 - -2441 401 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> i <br /> 07/16/97 11 76 3384 -- -2208 -- ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 -- <br /> 10/15/97 1176 3575 - -2399 -191 ND<50 -- ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 0 ND<2 0 <br /> s9ai Page 19 of 36 <br />