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plot of conductivity for well G82. Figure B-4 presents the <br /> conductivity versus time plot for well GB5. Conductivities for <br /> the well GB5 during the last few years have remained fairly stable <br /> although approximately 200 micromhos lower than earlier data. <br /> Changes in the Third White Sandstone aquifer at this well are <br /> thought to be within the range of natural fluctuation. These <br /> changes in conductivity in water from well GB5 are probably <br /> natural but could have been influenced some by the adjacent <br /> mining . <br /> Well GCI monitors the H aquifer at the GC site on the far <br /> east side of the Trapper Mine permit area at least two and one- <br /> half miles from the active mining . Figure B-5 presents the <br /> conductivity data for well GC1 . Concentrations have been very <br /> steady from this well in 1989. Well GC2 is completed in the Third <br /> White Sandstone at the GC well site. Figure B-6 shows some <br /> scatter in the conductivity data while the 1989 value shows an <br /> increase. Additional data is required to determine if <br /> concentrations are on an increasing trend . The alluvial aquifer <br /> is monitored at the GC site by well GC3. Figure B-7 presents the <br /> conductivity versus time plot for well GC3. A fair amount of <br /> scatter is seen on the plot, but an increase in values was seen <br /> from 1984 to 1996 with stable values after the rise. All changes <br /> in the aquifers at the GC site are natural due to the distance <br /> from active mining . <br /> Well GD1 is a Twenty Mile Sandstone well and is used as the <br /> • water supply well for the mine and the power plant since 1985. <br /> 3-2 <br /> l <br />