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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) 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 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 /> 15 <br /> GEOTRANS, INC. <br />