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~~ The municipal supply includes drinking water and water for <br />use in the change houses and mining facilities. As PCC <br />plans to acquire this water from the town of Nucla, no <br />augmentation is required. This water requirement is not <br />considered further in this report. <br />The industrial water supply for each mining area has <br />two components, listed below with the estimated annual <br />requirement in acre-feet. <br />MINING AREA <br />NUCLA NUCLA EAST <br />1) Dust Suppression and Compaction <br /> Make-up Water 14.0 23.0 <br />• 2) <br />~ Evaporation from PCC's Ponds 6.0 6.3 <br />3) Water Needed to Augment Water <br /> .Rights Impacted. by Mining 0.0 25.8 <br /> Subtotal 20.0 55.1 <br />Total <br />75.1 <br />Evaporative losses at NUCLA (6 acre-feet) and NUCLA EAST <br />(6.3 acre-feet) were determined using pan evaporation data <br />from the weather station at Montrose, Colorado. A factor of <br />0.7 was used to convert pan evaporation to .pond evaporation. <br />A second factor of 1.06 was also used to adjust for the <br />evaporation difference between the Montrose station and NUCLA <br />and NUCLA EAST mining areas. (Reference 1). Table 6 <br />summarizes the calculations.- <br />: <br />15 <br />GEOriRANS, IMC. <br />