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• i i - =s <br /> m <br /> 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 8260E benzene Xylenes 8021B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (14g/1) (ug/1) (µg/1) (µg11) (µg/1) (µg11) <br /> VW4 continued <br /> 10/15/97 - -- -- - -- -- -- -- - -- -- -- Dry <br /> 12/08/97 - - -- '- -- -- _ Well Connected To VES <br /> 03/05/98 -- 3182 000 __ -- ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<0 50 35 39 <br /> 05/27/98 28 55 000 - -- 3900 -- ND<10 ND<10 ND<10 ND<10 ND<10 ND<5 0 <br /> 07/21/98 -- 2853 000 -- -- 2500 -- 9 7 ND<0 50 ND<0 50 57 ND<5 0 ND<2 0 <br /> 10/14/98 -- 2954 000 -- -- 14000 ND<50 ND<50 120 370 ND<250 ND<66 <br /> 01/25/99 - 2874 000 -- -- 20000 ND<50 100 ND<50 440 ND<250 15 <br /> 04/19/99 - 2623 000 -- -- 14000 -- ND<50 ND<50 82 170 ND<250 15 <br /> 07/15/99 - 2754 000 -- -- 17000 - ND<50 ND<50 ND<50 ND<50 ND<250 19 <br /> 10125/99 - 2936 000 _ __ 22000 ND<50 ND<50 70 290 ND<250 27 <br /> 01/27/00 -- 2985 000 -- -- 19000 66 ND<50 190 1300 43 51 <br /> 06/26/00 -- 2609 000 -- -- 3470 -- ND<5 00 ND<5 00 ND<5 00 432 683 1110 <br /> 09/22/00 1176 2865 0 00 -1689 -- 12000 - ND<100 ND<100 ND<100 200 2800 160 <br /> 12/26/00 1176 2858 000 -1682 007 11100 -- ND<12 5 ND<12 5 275 167 140 172 <br /> 03/07/01 11 76 2827 000 -1651 031 12700 - 12 8 ND<10 0 794 413 350 321 <br /> 06/26/01 11 76 2932 000 -1756 -105 17000 -- ND<20 ND<20 27 170 230 330 <br /> 09/12/01 11 76 3120 000 -1944 -1 88 6900 -- 88 ND<5 0 62 230 240 310 <br /> 12/12/01 11 76 3147 000 -1971 -027 7000 -- 24 ND<10 200 64 220 270 <br /> 03/20/02 11 76 3021 000 -1845 126 170 -- ND<0 50 ND<0 50 ND<0 50 2 4 27 36 <br /> 06/06/02 11 76 3067 0 00 -1891 -046 -- ND<50 ND<0 50 ND<0 50 0 5 3 9 -- 40 <br /> 09/30/02 1176 -- -- -- __ __ -- __ __ -_ DD, <br /> 12/30/02 11 76 -- -- -- -- -- -- -- - -- -- -- -- Dry <br /> 03/29/03 1176 3174 000 -1998 -- -- -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<2 0 <br /> 06/25/03 1176 3208 000 -2032 -034 __ __ __ -- _- Insufficient Water <br /> sss� Page 35 of 37 <br />