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The term "regulatory" was coined to describe the Wayne N. Aspinall Unit (Aspinall Unit) of the Colorado River Storage Project (CRSP} which was constructed by the Federal government primarily to regulate Gunnison River flows. The Aspinall Unit is comprised of three storege reservoirs located on the main stem of the Gunnison River: Blue Mesa, Morrow Point and Crystal. Flows of the Gunnison River are largely controlled by Blue Mesa Reservoir, the largest and uppermost of the three. Each of the three reservoirs includes a hydroelectric generating facility for the purpose of project repayment. The toial combined installed capacity of the three plants is 208,000 kilowatts (kW). The primary function of the Aspinall Unit, however, is to regulate streamflow so that water commitments to the Lower Colorado River Basin can be met in dry periods without curtailing the development of water allotted to the Upper Basin. The only commercial hydroelectric power generating statien in the Study Area other than the Aspinall Unit facilities, is the Ouray facility. The Ouray hydropower plant is a 7�0 kW run-of-river facility oaned and operated by the Colorado Ute Electric Association. It is located on the Uncompahgre River within the town of Ouray. Agricultare has historically been the largest user of water within the Study Area. Irrigated agriculture has been practiced in the area since the late 1800's. Three U.S. Bureau of Reclamation (USBR) projects which provide irrigation water from storage serve agricultural lands within the area. These projects are the Uncompahgre Project (Taylor Reservoir), Bostwick Park Project (Silver Jack Reservoir) and the Dallas Creek Project (Ridgway Reservoir). These projects are owned by the USBR but are operated and maintained by the Uncompahgre Valley Water Users Association (UVWUA), the Bostwick Park Water Conservancy District (BPWCD) and the Tri-County Water Conservancy District (Tri-County). Each of these organizations is also responsible for repayment of the project loans. The Uncompahgre Project irrigates 86,�00 acres, the Bostwick Park Project irrigates 7000 acres, and the Dallas Creek Project provides 11,000 acre-feet (afJ of supplemental supply to presently irrigated acreage in the Uncompahgre Valley. �