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<br />~ <br /> <br />Impact of Two Forks/Williams Fork Projects <br /> <br />Post Ruedi Round II/Green Mountain water sales (Environmental <br />Baseline) daily flow conditions at Cameo for May, June and July for <br />the period 1952-1982 were calculated by developing a percentage <br />based upon dividing the monthly HYDROSS mean by the monthly mean at <br />the Cameo USGS gage. Daily flows from the Cameo gage were then <br />multiplied by the derived percentage to produce a new daily flow <br />for Cameo which has been adjusted for all projects included in the <br />1952-1982 period of record. <br /> <br />working from the adjusted daily flow at Cameo, post Two Forks and <br />Williams Fork flows were calculated by subtracting project <br />depletion. The depletions were subtracted in the order in which <br />they occurred (Two Forks then Williams Fork) with an assumption <br />that they occurred at a constant rate for each day in the month. <br /> <br />Peak mean daily flows at Palisades for each year in the period of <br />record were calculated by assuming the difference in monthly means <br />between Cameo and Palisades, after adjustment by the HYDROSS mean, <br />were representitive of the difference in daily values for the <br />sites. <br /> <br />8 <br />