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I I I I I I I I I I I I I I I I I I I O~~fHI5 TITLE: YELLOW JACKET PROJECT DATE: December, 1982 SPONSOR: Colorado Water Conservation Board OBJECTIVE: Evaluate at an appraisal level the engineering feasibility and cost of constructing alternative storage, diversion, and pumping and delivery facilities to develop the water rights held by the Yellow-Jacket Water Conservancy District. SIGNIFICANT FINDINGS: o The District owns conditional storage and direct flow rights on the North Fork, that were assumed for purposes of thi s study to have an annual depletion of 80,000 acre-feet per year and a yield of 87,500 acre-feet. o The 87,500 acre-foot yield can supply 18,000 acre-feet for irrigation in the Little Beaver Creek area, 5,000 acre-feet of municipal supply at Meeker, and 64,500 for industri a1 supply, consi sti ng of 18,000 acre-feet for coal development and 46,500 for shale oil development. o Of sixteen storage sites evaluated, the Avery, Sawmill Mountain, and Warner Point sites were selected for final evaluation. When these reservoi rs were combi ned wi th requi red del ivery systems, the Avery and Warner Point alternatives were found most feasible, at an estimated cost of about $75 per acre-foot of yield. SUMMARY OF RECOMMENDATIONS: o Additional geotechnical information is needed at many dam sites within the .basin. o The depletion allowable by the Yellow Jacket water rights will have to be determined through legal processes. o Continued investigation should be made of potential s for joint use projects in the basin, utilizing additional water rights and storage facilities.