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<br />r <br /> <br />-; <br /> <br />,-- <br /> <br />- <br />I <br />, <br />, <br /> <br />that the Study has covered only a limited number of the facets involved in selection of projects for <br />construction, no ranking or preference has been attempted. Instead, alternatives have been defined <br />and water yields and estimated costs have been listed for consideration in the next level of <br />development of these projects. <br /> <br />HYDROLOGIC ANALYSIS <br /> <br />The portion of the Upper Colorado River Basin analyzed in this Study extends over 200 miles <br />from the Continental Divide to the Cameo stream gage upstream of Palisade, Colorado, The farthest <br />downstream dam and reservoir site studied was the Una Site, between Parachute and DeBeque, <br />some 35 miles east of Grand Junction. <br /> <br />In the upper reaches of the study area, the Blue River and Muddy Creek flow into the <br />Colorado River near Kremmling, Colorado. Four dam sites are located in this vicinity. Alternative <br />. <br /> <br />Wolford Mountain Sites A' and C are located to the north on Muddy Creek. The Red Mountain Site is <br />1 mile east of Kremmling on the Colorado River, and the Azure Site is 10 miles downstream to the <br />southwest of Kremmling on the Colorado River in Lower Gore Canyon. <br /> <br />To the south of Kremmling, the existing Green Mountain Reservoir regulates the Blue River <br />to allow for out-of-priority diversions by the Colorado-Big Thompson Project and to provide water for <br />western Colorado's needs. Further up the Blue River, Dillon Reservoir stores flows which can be <br />diverted through the Roberts Tunnel. West of this area, closer to the confluence of the Eagle and <br />Colorado Rivers is the Wolcott Site. It is located on a minor tributary to the Eagle River just north of <br />the town of Wolcott. It is an off-stream storage site that would be filled with water pumped from the <br />Eagle River, and, alternatively could also receive flows pumped from the Colorado River. <br /> <br />Hydrologic conditions prevailing in the Upper Colorado River Basin were evaluated to <br />estimate the yield from each reservoir site and to assess the ability of the proposed reservoirs to <br />meet the objectives of a Joint-Use Reservoir or to function as Replacement Reservoirs for the Green <br />Mountain Exchange Project. These hydrologic analyses included estimation of historic and natural <br />streamflows in conjunction with evaluating historic water use. Water rights and other legal and <br />institutional arrangements were examined that could affect river administration in the basin. In <br />addition, various levels of water development in the basin were examined to estimate potential <br />future water utilization. To effectively perform such hydrologic analyses, a review was made of <br />several existing hydrologic simulation models for their potential applications. The Boyle <br /> <br />3 <br />