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i • • - <br /> Table 2 <br /> 4 HISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> September 1996 Through February 2005 <br /> 76 Station 5886 <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) (µg11) (µgll) (1g11) (41) (µg11) (µg/1) (µg11) (µg/1) <br /> MW-7D continued <br /> 1!116100 276 896 000 -620 045 ND -- ND 051 ND ND ND ND <br /> 02/05/01 276 885 000 -609 Oil ND ND ND ND ND ND ND <br /> 05/07/01 276 866 000 -590 -- ND - ND ND ND ND ND ND <br /> 08/20/01 2 76 9 86 000 -7 10 -- ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 <br /> 11/19/01 276 936 000 -660 -- ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<I 0 <br /> 02/11/02 276 896 000 -620 ND<50 - ND<0 50 1 3 ND<0 50 097 ND<2 5 ND<2 0 <br /> 05/02/02 276 899 000 -623 -- ND<50 - ND<0 50 ND<0 50 ND<0 50 ND<0 50 ND<5 0 ND<2 0 <br /> 08/01/02 276 942 000 -666 -043 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 ND<2 0 <br /> 11/20/02 276 691 000 -4 15 2 51 - ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 - ND<2 0 <br /> 02/20/03 2 76 9 01 000 -6 25 -210 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 <br /> 05/07/03 276 8 21 - -545 0 80 -- -- -- - -- -- _ __ Sampled Serpi-Annually <br /> 08/04/03 276 947 000 -671 -126 ND<50 ND<5 0 ND<5 0 ND<5 0 ND<l 0 -- ND<2 0 <br /> 11/20/03 276 889 000 -6 13 0 58 -- - -- -- -- -- __ Monitored Only <br /> 02/11/04 276 865 0 00 -5 89 0 24 -- ND<50 ND<0 50 ND<0 50 0 78 2 3 - ND<2 0 <br /> 05/27/04 276 886 000 -6 10 -021 -- -- -- __ __ __ __ __ Monitored Only <br /> 08/30/04 276 8 80 000 -604 006 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<l - ND<0 5 <br /> 11/23/04 276 857 000 -5 81 0 23 -- -- -- -- -- -- - -- Sampled Semi-Annually <br /> 02/23/05 276 797 000 -5 21 060 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 <br /> MW-7S (Screen Interval in feet 7 0-17 0) <br /> 05/02/97 236 9 37 000 -701 -- ND ND ND ND ND ND - <br /> 09/02/97 2 36 1143 000 -9 07 -206 ND -- ND ND ND ND ND -- <br /> 12/01/97 236 987 000 -751 1 56 ND -- ND ND ND ND ND -- <br /> 03/25/98 236 790 000 -554 197 ND -- ND ND ND ND ND 41 <br /> 06/17/98 236 8 91 000 -655 -101 ND -- ND ND ND ND ND ND <br /> 5886 Page 18 of 30 <br />