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• characteristics by the II.S. Geological Survey, CYCC and independent <br /> consultants. Pump tests were conducted under various geologic <br />conditions and with the use of observation wells and continuous <br />water level and discharge recorders. The results of these teats are <br />listed in Table 27, Aquifer Characteristics. Data and analyses <br />derived from the pump tests are presented in Eahibit 19, Aquifer <br />Test Data. The overburden aquifer has an average permeability of <br />3.4 gallons per day per square foot (indicative of low yields), <br />storage coefficient of 1.12 a 10'5 (in the range of typical <br />confined, Artesian aquifers with low porosity) and an average yield <br />of 5.5 gallons per minute (suitable for small stockvater or domestic <br />supply). Due to low permeability and Limited yield, the overburden <br />could only be considered an aquifer for the specific use of loin <br />• yielding wells for small demand. <br />Ground Water Recharge Characteristics <br />The proposed permit and adjacent area is Located in a semi-arid <br />climate, with average annual precipitation of about 16 inches. Moat <br />precipitation is lost to runoff, evapotranspiration and sublimation, <br />minimizing the amount available for ground water recharge. The <br />unconfined alluval aquifers are recharged in the spring when the <br />snowmelt eater infiltrates through the alluvium. The confined <br />overburden aquifer is recharged predominantly by infiltration in the <br />. outcrop area delineated on Map 4, Mine No. 3 Hydrology. <br />2.04-40 <br />