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<br />. <br /> <br />. <br /> <br />cfs the amount storable at the Sheephorn damsite would increase from <br />138,500 to an average of 178,700 acre-feet per year for the study <br />period. Table 4 shows the storable flow with a 50 crs bypass at the <br />Sheephorn damsite. <br />Although the quantities given in Tables 3 and 4 represent the <br />storable flow at the Sheephorn damsite, they do not represent the <br />yield of the reservoir as it is not economically feasible to construct <br />a project of sufficient size and capacity to carryover the required <br />number of years to equate these flows. <br />To determine the yield of 210,000 acre-feet of storage capacity <br />in the proposed Sheephorn reservoir, a simple mass diagram was developed <br />from which it was found that an average firm yield of 96,000 acre-feet <br />per year could be realized with a 300 cfs fish and wildlife bypass and <br />105,000 acre-feet per year with a 50 cfs bypass. As the final quantity <br />of water required to maintain a viable stream below the damsite is <br />unknown, the yield of this reservoir is expected to range between <br />96,000 and 105,000 acre-feet for the adopted study period. <br />Studies were made to determine how large a synthetic liquid fuels <br />requirement could be supplied from the Sheephorn reservoir. Corrected <br />Cameo and Shoshone streamflow was analyzed to determine the quantities <br />of reservoir water needed to supplement synfuel direct flow rights in <br />the reach between these two points. As stated previously, these <br />studies were ror an annual requirement of 100,000, 200,000 and 350,000 <br />acre-feet. It was found that the 210,000 acre-foot reservoir would <br />firm up a synfuel requirement of 340,000 acre-feet per year. This <br />would supply 2.2 and 7.2 million gallons per day oil shale plants <br />using the Colorado Water Conservation Board's range for different <br />processes. <br /> <br />. <br /> <br />-14- <br />