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to 5 gallons -per- minute, which was not sustainable. The consulting ground water geologist <br />present during the well drilling indicated that the ground water in the well entered from the <br />overlaying soils, and not the bedrock formations. <br />As evident in the drill log, the exploratory well was drilled through 95 feet of glacial - alluvial <br />materials, 357 feet of quartz monzonite (sill), and 138 feet of the Minturn Formation (shale <br />and dolomite). The drilling log showed that there are very few fractures in the sill, and that <br />the metamorphosed shales and dolomites of the Minturn Formation are well indurated and <br />contain very few fractures. Perched water was encountered in the alluvium during the drilling <br />operation. Ground water, however, was not produced from the bedrock. <br />The collar elevation of the exploratory well is approximately 11,310 feet above mean sea level <br />(msl) with the bottom of the well at 10,720 feet msl. For reference, the surface elevation of <br />the Arkansas Valley drainage located just west of the Mosquito Fault is at approximately <br />10,980 feet msl. The level of the ground water in the flooded underground workings during <br />November, 1994 was 10,870 feet msl. These data show that the bottom of the exploratory <br />well is approximately 260 feet below the surface of Arkansas Valley and 150 feet below the <br />ground water level in the flooded workings (during November, 1994). Therefore, if a <br />significant quantity of ground water were migrating east -west from the Precambrian bedrock <br />across the Mosquito Fault, it would have been intercepted by this well. The drilling log for <br />the well clearly shows the lack of ground water in the bedrock, therefore east -west ground <br />water flow through the fault is not evident. <br />Precambrian Idaho Springs Formation and Silver Plume Granite <br />The Precambrian Idaho Springs Formation and the Silver Plume Granite are considered to be <br />of relatively low permeability. The low permeability is evident from field data of packer tests <br />conducted in these units and from water balance data from the underground workings at the <br />Climax Mine. <br />Packer Test Results <br />A total of 22 pressure packer tests were conducted in the Precambrian Idaho Springs <br />