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• . I <br />During well development, the discharge from the submersible pump was measured and varied <br />' at each well to evaluate what long term pumping rates could be sustained at each of the wells. <br />M-13R was able to sustain a discharge rate of approximately 3 gpm, while M-14 was able to <br />' sustain a discharge rate of approximately 5 gpm. The lower sustainable discharge rate at well <br />M-13R is consistent with the observation that the geologic section, in the vicinity of M-13 and <br />' M-13R contains a greater silt fraction. Pumping yields are indicative of the aquifers' <br />transmissivity. In conjunction with the geologic observations, the sustainable pumping rates <br />indicate that the upper saturated portion of the Santa Fe Formation is very tight. The <br />observations and data indicate that ground water in this area is very slow moving. <br />SUMMARY <br />' With reference to the Division of Minerals and Geology's TR-08 approval, Battle Mountain <br />Resources, Inc. has complied with conditions 2 and 4 with the installation of two additional <br />ground water monitoring wells. M-13R was installed as a replacement Well to M-13 <br />approximately 36 feet to the east, and M-14 was installed between the col[ectiorl pond and the <br />toe of the tailings dam. Both wells were drilled, geologically logged, and completed in a manner <br />comparable to wells M-9 and M-12. Both wells, M-13R and M-14, are completed in the <br />uppermost water-bearing interval of the Santa Fe Formation. The Santa Fe Formation in this <br />' area consists of a repetitive fanglomerate sequence of loosely consolidated silts, sands, gravels, <br />and cobble lenses. A geophysical log suite which included gamma, neutron, and EM <br />conductivity was also run in well M-14. Geologic observations and pumping data indicate that <br />the upper saturated portion of the Santa Fe Formation is very tight. Water levels recorded from <br />' the monitoring well network, in the vicinity of the tailings facility, indicate that the <br />potentiometric surface mimics the natural topographic surface. Ground water flows from the <br />' elevated flanks toward the central portion of the valley, with resultant flow from east to west <br />down the valley. The local ground water gradient is approximately 0.04. <br />1 <br />1 _g_ <br />1 <br />