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i <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through June 2005 <br /> i <br /> Former 76 Station 6981 <br /> I � <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 8260E <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (Ng/1) (µg11) (11g/1) W/1) (µg/l) (pg/1) (µg11) (pg/1) <br /> MW-5 continued <br /> 03/20/02 1152 2977 - -1825 129 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 <br /> 06/06/02 1152 3025 -- -1873 -048 -- ND<50 ND<0 50 2 4 ND<0 50 2 3 -- ND<2 0 <br /> 09/30/02 11 52 3280 - -21 28 -255 ND<50 2 2 5 1 6 5 2 -- ND<2 0 <br /> 12/30/02 1152 3234 -- -2082 046 -- ND<50 062 067 ND<0 50 ND<1 0 -- ND<2 0 <br /> 03/29/03 1 l 52 3125 -- -1973 109 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 <br /> 06/25/03 1152 3169 -- -20 17 -044 -- ND<50 ND<O 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 <br /> 09/24/03 1152 34 01 000 -2249 -232 -- ND<50 ND<0 50 056 ND<0 50 ND<l 0 ND<2 0 <br /> 12/30/03 1152 33 58 000 -2206 043 - 57 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 <br /> 03/09/04 11 52 3257 000 -2105 101 -- ND<50 ND<0 50 1 5 ND<0 50 2 4 -- ND<2 0 <br /> 06/16/04 1152 33 27 000 -2175 -070 __ 83 ND<0 50 051 ND<0 50 ND<l 0 -- ND<0 50 <br /> 09/20/04 1152 3614 000 -2462 -287 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 <br /> 12/30/04 11 52 35 55 000 -24 03 0 59 ND<50 -- ND<0 50 ND<0 50 ND<0 50 1 0 - ND<0 50 <br /> 03/24/05 1152 34 13 000 -2261 l 42 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 <br /> 06/28/05 1152 3267 000 _21 15 146 ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 <br /> MVV-6 (Screen Interval in feet 49 0-69 0) <br /> 04/16/92 -- -- -- __ <br /> 07/30/92 -- -- -- -- -- 410 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 10/21/92 -- -- -- -- - 180 -- 2 2 08 ND<0 5 ND<0 5 -- -- <br /> 01/13/93 - -- -- -- -- 140 -- 3 6 ND<0 5 0 6 1 <br /> 04/26/93 1143 5028 000 -38 85 -- 730 - 11 ND<2 5 8 8 6 4 - -- <br /> 07/26/93 I 1 43 5133 0 00 -3990 -105 150 ND<0 5 ND<0 5 0 7 ND<0 5 - -- <br /> 10/20/93 11 43 51 79 000 -4036 -046 220 10 0 95 1 1 1 1 -- -- <br /> 01/17/94 11 43 4929 000 -3786 2 50 570 -- 3 6 094 91 24 -- -_ <br /> 04/25/94 11 43 4721 000 -3578 208 500 -- 44 16 2 12 <br /> 6981 Page 12 of 37 <br /> i <br />