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0 <br /> 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) (pg/1) (µg11) (µg11) (µg11) 41811) (pg/1) (pg/1) (pg/1) <br /> MW-5 continued <br /> 12130!02 1152 32 34 -- -2082 046 -- ND<50 062 067 ND<0 50 ND<l 0 -- ND<2 0 <br /> 03/29/03 11 52 3125 -- -19 73 109 -- 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<0 50 ND<0 50 ND<0 50 ND<I 0 -- ND<2 0 <br /> 09/24/03 1152 34 01 000 -2249 -2 32 -- 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<I 0 - ND<2 0 <br /> 03/09/04 1152 3257 000 -2105 lot -- ND<50 ND<0 50 15 ND<6 50 2 4 -- ND<2 0 <br /> 06/16/04 11 52 33 27 000 -21 75 -070 -- 83 ND<0 50 051 ND<0 50 ND<I 0 ND<0 50 <br /> 09/20/04 11 52 36 14 0 00 -2462 -287 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<l 0 - ND<0 50 <br /> 12/30/04 11 52 35 55 000 -2403 059 ND<50 - ND<0 50 ND<0 50 ND<0 50 10 -- ND<0 50 <br /> 03/24/05 11 52 34 13 000 -2261 142 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 <br /> MW-6 (Screen Interval in feet 49 0-69 0) <br /> 04/16/92 -- - - -- <br /> 07/30/92 -- - - -- -- 410 -- ND<0 S ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 10/21/92 -- -- - -- -- 180 2 2 0 8 ND<0 5 ND<0 5 -- - <br /> 01/13/93 -- - -- -- 140 -- 3 6 ND<0 5 0 6 1 -- -- <br /> 04/26/93 11 43 5028 000 -38 85 -- 730 -- 11 ND<2 5 88 6 4 -- -- <br /> 07/26/93 11 43 51 33 000 -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 -- 10 095 1 1 1 1 -- <br /> 01/17/94 11 43 4929 000 -3796 250 570 -- 3 6 094 91 24 - - <br /> 04/25/94 11 43 4721 000 -35 78 -- 500 -- 4 4 1 6 2 1 2 -- - <br /> 07/25/94 11 43 4966 000 -3823 -245 88 -- 1 8 ND<0 5 ND<0 5 ND<0 5 -- <br /> 10/26/94 11 43 5082 0 00 -3939 -1 16 ND<50 -- ND<0 5 069 ND<0 5 0 59 -- -- <br /> 01/25/95 1143 4807 000 -3664 275 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 04/26/95 1143 4366 000 -3223 4 41 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 6981 Page 12 of 36 <br />