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total water diversions. For example, the Ute Water Conservancy District (UWCD) diverts water from Plateau Creek for municipal and commercial use in the Grand Valley. While diversions are upstream of Cameo, return flows associated with this use accrue to the Colorado River downstream of both the Cameo Demand and the 15 Mile Reach. When it is necessary for the Ute District to augment the Cameo Demand, or offset depletions to the 15 Mile Reach, the District may have to replace total water diversions, not just consumptive water use. The majority of the anticipated growth in the Grand Valley is expected to occur within the service area of the UWCD. Recent projections indicate that more than 70% of the future growth in the area will be served by the District. Current diversions by the Ute Water Conservancy District average less than 8,000 acre feet per year. However, the UWCD estimates that by the year 2045, average annual diversions in excess of 37,000 acre feet will occur. This represents a potential increase of almost 30,000 acre feet of annual depletions to Cameo and the 15 Mile Reach from UWCD diversions alone. Given the above considerations, we anticipate a demand for reservoir water will occur, to augment a significant portion of depletions associated with future municipal growth throughout the basin. In this regard, it is not unreasonable to expect that the municipal contract demand for reservoir water will increase by 10,000 to 15,000 acre feet, or more, by the year 2045. 5.2 INDUSTRIAL DEMANDS Industrial contracts (both approved and pending) from Green Mountain Reservoir and Ruedi Reservoir currently total about 14,000 acre feet, per year. Industrial reservoir contracts are primarily used for augmentation of snowmaking diversions or for augmentation of evaporation losses from gravel pits. Several site specific industries, such as the Gypsum Wallboard Plant, also require augmentation water. Actual industrial demands are difficult to anticipate. However, as population growth continues, increased industrial development on the West Slope will occur. A portion of this development will require water right augmentation resulting in increased demand for industrial reservoir contracts. Future industrial demands will depend on the type of industries developed and the location of these industries. For example, demands for gravel pit augmentation will likely increase throughout the basin as more or larger gravel pits are developed in response to growth within the study area. Snowmaking demands are also prltjected to Increase. In recent years, the area of ski terrain covered by snowmaking has increased significantly. Many areas are routinely increasing the coverage of their snowmaking systems. Another factor affecting snowmaking demand is the potential development or expansion of significant new ski areas. If major ski area expansion or development is permitted (Adam's Rib, Burnt Mountain, etc.), snowmaking demands may increase significantly. If no major ski area expansions occur, the increase in snowmaking demand will lessen. ] .1 20