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and GP6 are the westernmost wells of the GP well series being <br />slightly less than one-half mile from active mining. Both wells <br />are completed in the QR aquifer with well GP6 approximately 5000 <br />feet upgradient of well GPS: Field conductivity plots for each <br />well present fairly stable plots of the data with average values <br />of 1600 umhos/cm for well GP5 and 1100 umhos/cm for well GP6 <br />showing that the downgradient well is subject to higher <br />concentrations of dissolved solids from material in the QR aquifer <br />between the two sites. Although these wells are relatively close <br />to active mining, changes seen in these wells are natural <br />fluctuations. <br />Wells GP7 and GPB are HI and KLM aquifer wells in the <br />• easternmost area of the Trapper Mitte permit. Conductivity plots <br />for each of these wells present significant scatter through 1986 <br />(see Figures B-28 and B-29). This variation in the early data is <br />probably due to the differences in bailed water samples and pumped <br />samples from the September monitoring each year. There was a <br />gradual declining trend occurring in well GP8 with a small rise in <br />1990. <br />The Third White Sandstone aquifer is monitored by well GP9 in <br />the northeast portion of the Trapper permit area. Figure B-30 <br />presents the conductivity versus time data for well GP9. A fair <br />amount of .scatter is again seen in the data for this well but <br />values have been fairly steady the'last two years.. <br />Wells P1 and P3 are alluvial and Lewis Shale completion <br />wells, respectively. The Lewis Shale is thought to contribute <br />3-6 <br />