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<br />' The analytical solution assumes an infinite aquifer <br />system, while the rapid changes in aquifer hydraulic <br />i ' characteristics observed in the analyses shown in Figures G- <br />12 and G-13 (indicated by slope changes) indicate boundary <br />' conditions in the flow regime. The data from tFe flow tests <br />indicate that the confined aquifer in the vicinity of the West <br />Pit is of limited size, most probably a local aquifer system <br />' that derives its high artesian pressure at the base of the <br />system (near Rito Seco) simply due to topographic <br />' differentials. <br />' As the flow test demonstrated, these high surface flows <br />can be reduced dramatically after flowing for just one day. <br />' It is difficult to extrapolate test data from one test <br />in a fractured aquifer system over a larger are;, as one of <br />' the inherent assumptions of the analyses is oomogeneity. <br />However, until more data become available, the tr3nsmissivity <br />values obtained during the latter portion of tFis test are <br />assumed indicative of the local aquifer hydraulic <br />' characteristics. As more data become available, these analyses <br />will be updated, if necessary. <br />Based on geologic cross-sections prepared by Battle <br />Mountain Gold Company personnel, the thickness of the water- <br />' bearing strata of the ore zone aquifer is estimal.ed to be 75 <br />ft in the West Pit, and 40 ft in the East Pit. Th~s thickness <br />' of water-bearing strata relates to the mineralized section <br />identified in Battle Mountain's geologic analyses, since the <br />t massive Precambrian rock itself will yield very li:tle, or no, <br />water. The mineralized zone is expected to contain the majority <br />of the fracture system and vuggy zones that are water-bearing. <br />' The primary permeability in these rocks is through the fracture <br />system and the vuggy zones. <br />1 <br />1 <br />G-36 <br /> <br />