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�1 <br />� <br />1.0 INTRODUCTION <br />This preliminary evaluation of alternative water management plans for the <br />Upper Gunn9son and Uncompahgre River Basins was conducted by the Colorado. <br />Water Resources and Power Development Authority (Authority) at the request of <br />the Study's sponsors: the Upper Gunnison River Water Conservancy District <br />(UGRWCD) and the Colorado River Water Conservation District (CRWCD). The <br />purpose of this Summary Report is to present a concise overview of the Study. <br />The Final Report for the Study presents these topics in greater detail. <br />I The physical area investigated (the Study Area) in this'Study includes <br />� the Upper Gunnison sub-basin (upstream of Crystal Dam) and the Uncompahgre <br />I sub-basin. Figure 1.1 shows the Gunnison River Ba'sin and the Study Area <br />boundary. Located in west-central Colorado, the Study Area is bordered by the <br />1 Continental Divide to the east and southeast, the San Juan Mountains to the <br />south, the iown 'of Delta to the west, and the North Fork of the Gunnison and <br />Roaring Fork watersheds to the north. The Study Area encompasses <br />� approximately 5120 square miles of land. <br />l1.1 AUTHORIZATION <br />I The Upper Gunnison-Uncompahgre 8asin Phase I feasibility Study (Study) <br />was authorized on December 12, 1986, by the Authority's Board of Directors in <br />response to an application submitted by the previously mentioned Study <br />( sponsors. The Authority entered into a contract with HDR Engineering, Inc. <br />(HDR) on June 5, 1987, to provide consulting services for the Study. HDR <br />Isubcontracted with three other organizations to provide specialty services: <br />WBLA Inc., for hydrologic/water ri9hts modeling; Woodward Clyde Consultants <br />I for geology and geotechnical engineering; and the CU Center for Economic <br />Analysis for popnlation projections and economic farecasting. The following <br />� individuals also participated as members of the Study Team: Dr. Hugo Ferchau <br />for botany; Dr. Robert Behnke for aquatic biology; and Mr. Robert Rosette for <br />waterfowl and stream access studies. <br />1-1 <br />