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s �i■� FIs IWM ■� <br /> i • • <br /> TABLE 1 (continued) <br /> Casing Depth Groundwater LPH Concentration(gg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (ft MSI) (ft) (ft msl) (ft) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> RW4 02/03/97 923 2140 -12 17 000 1,700 6,500 1,900 7,200 42,000 1,300 <br /> 05/08/97 7 86 2005 -12 19 000 540 1,500 720 2,200 16,000 56 <br /> 08/26/97 2151 -13 65 000 98 180 140 340 2,600 56 <br /> 11/11/97 22 12 -1426 000 260 350 320 570 4,100 98 <br /> 03/03/98 16 85 -899 000 1,500 4,600 2,100 6,000 38,000 1,100 <br /> 03/03/98 <67* <br /> 05/20/98 16 11 -825 000 450 460 600 890 7,400 400 <br /> 05/20/98 <6 7* <br /> 08/19/98 1751 -965 000 130 240 210 580 3,100 90 <br /> 08/19/98 <12* <br /> 11/18/98 1798 -10 12 000 300 480 400 970 5,600 <25 <br /> 03/30/99 -- -- -- -- -- -- -- -- -- <br /> 05/05/99 -- -- -- -- -- -- -- -- -- <br /> 08/20/99 -- -- -- -- -- -- -- -- <br /> 12/06/99 -- <br /> SWI 02/17/94 Not accessible since 02/17/94 <br /> 02/17/95 2801 Air sparging we11-- samples not collected <br /> 05/11/95 -- Air sparging well-- samples not collected <br /> 08/24/95 -- Air sparging well-- samples not collected <br /> 10/19/95 -- Air sparging well-- samples not collected <br /> 02/13/96 -- Air sparging well-- samples not collected <br /> 04/18/96 -- Air sparging well--samples not collected <br /> 08/08/96 Air sparging well-- samples not collected <br /> 11/04/96 2424 -- 000 2,400 3,100 290 2,800 25,000 <250 <br /> 02/03/97 -- -- -- -- -- -- -- -- -- <br /> 05/08/97 -- -- -- -- -- -- -- -- -- <br /> 08/26/97 -- -- -- -- -- -- --11/11/97 -- -- -- _- -- -- -- -- <br /> 03/03/98 -- -- -- -- -- -- -- -- -- <br /> 05/20/98 -- -- -- -- -- -- -- -- -- <br /> 73942 Q1299 TI XLS Page 26 <br />