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<br />in 1987. The increase in conductivity in this well is due to <br />ground water dissolving constituents as it enters the backfill <br />material: Conductivity has been fairly steady 'for 1989 and 1990 <br />and appears to be leveling off. Well GF11 was completed in July <br />1988. An overall increasing trend seems to be occurring in the <br />backfill water at GF11. The conductivities in this backfill <br />aquifer are very close to background values. <br />The QR aquifer is monitored in the east part of the Trapper <br />Mine permit area by well GP1. Figure B-22 presents the plot of <br />field conductivity versus time for well GP1. A fair amount of <br />scatter is seen in the data with the 1988 and 1989 conductivity <br />values indicating a decline below the 1986 and 1987 values. The <br />1990 value indicates that the conductivity has leveled off to <br />approximately 1000 umhos/cm. <br />Figure B-23 presents field conductivity data for KLM well <br />GP2. The early data from well GP2 contains more scatter than the <br />last four values which is probably due to the variation in samples <br />bailed from the well versus those which were pumped during the <br />September monitoring each year. The pumped samples present a <br />fairly steady plot. Conductivity data for HI aquifer well GP3 <br />which is a flowing well is presented on Figure B-24. Figure B-24 <br />shows some scatter in the data. The conductivities from well GP3 <br />have been fairly steady at approximately 1300 umhos/cm~.: <br />..._. Well GP4 is also a flowing well that is completed in the KLM <br />. aquifer. The data presents a fairly steady plot with data staying <br />close'to a value of 1300 umhos/cm (see Figure B-25). Wells GP5 <br />3-5 <br />