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• i • Y: <br /> Table 2 <br /> HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through June 2005 j <br /> Former 76 Station 6981 <br /> Date TOG Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water in 9260B benzene Xylenes 8021B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg11) (µg11) (µg/l) (µg11) (µg11) (1g11) (µg/l) (1g11) <br /> MW-16 (Screen Interval in feet 18 0-38 0) <br /> 08/21/99 1179 2845 000 -1666 -- 1900 -- 27 ND<10 26 150 120 69 <br /> 10/25/99 1179 29 39 000 -1760 -094 3100 -- 55 ND<10 77 360 170 100 <br /> 01/27/00 11 79 2995 000 -1716 044 4600 -- 78 5 7 170 390 130 130 <br /> 06/26/00 1179 26 13 000 -1434 2 82 1650 -- 18 9 257 436 105 667 737 <br /> 09/22/00 1220 2904 000 -1684 -250 1800 16 ND<10 31 72 85 68 <br /> 12/26/00 1220 2898 000 -1678 006 3720 -- 275 ND<10 0 627 178 176 111 <br /> 03/07/01 1220 2868 000 -1648 030 3690 - 31 1 ND<10 0 547 200 ND<100 133 <br /> 06/26/01 1220 2969 000 -1749 -101 4300 -- 38 ND<5 0 61 170 100 150 <br /> 09/12/01 1220 31 55 000 -1935 -1 86 1400 -- 47 ND<5 0 22 85 110 190 <br /> 12/12/01 1220 31 82 000 -1962 -027 5600 -- 160 ND<5 0 72 270 210 250 <br /> 03/20/02 1220 31 78 000 -1958 004 1800 -- 230 ND<5 0 45 67 210 230 <br /> 06/06/02 1220 31 03 000 -1883 0 75 -- 2000 290 ND<5 0 69 88 -- 120 <br /> 09/30/02 1220 3360 000 -21 40 -257 -- 55 5 6 ND<0 50 12 16 -- 3 <br /> 12/30/02 1220 33 15 0 00 -2095 045 -- ND<50 0 53 ND<O 50 ND<O 50 ND<I 0 -- ND<2 0 <br /> 03/29/03 1220 32 12 000 -19 92 103 -- 200 38 061 2 2 3 4 -- 89 <br /> 06/25/03 1220 3242 000 -2022 -030 -- 220 24 057 3 2 5 6 -- 43 <br /> 09/24/03 1220 3481 000 -2261 -239 -- 140 25 0 68 3 3 5 3 -- 28 <br /> 12/30/03 1220 3431 000 -22 11 050 -- 200 32 ND<2 0 56 96 22 <br /> 03/09/04 12 20 33 43 000 -21 23 088 -- 150 29 0 71 59 10 -- 16 <br /> 06/16/04 1220 3403 000 -21 83 -060 -- 280 35 ND<2 5 7 8 14 - 16 <br /> 09/20/04 1220 -- -- -- -- -- -- -- __ -- -- __ -_ Dry well <br /> 12/30/04 1220 3635 000 -24 15 -- 110 -- 10 ND<0 50 40 7 1 - 12 <br /> 03/24/05 1220 3500 000 -2280 135 120 -- 18 ND<O 50 3 8 5 6 -- 18 <br /> 06/28/05 1220 3344 000 -21 24 1 56 100 -- 9 0 0 191 24 40 __ 22 <br /> seal Page 28 of 37 <br />