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<br />32 <br /> <br />3723 <br /> <br />RUEDI DAM AND RESERVOIR, COLO. <br /> <br />Operation study <br />A monthly operat,jon study of Ruedi ReEeIToir was ma.de for the <br />IV-year period Au!!'ust 1929 i,hrough .T u]y 1948. This period reflects <br />a crit.ical period of water Sllj)ply und a complete c)"cle of operation <br />as the l\'servoir would ha,ve _n full at both the beginning and the <br />end of the period, as well as at some points in the interim. <br />The object,jye of the study was to determine the manner and ex- <br />tent to which Rue,li Reservoir would meet the 2014 requirements <br />for municipal and industria.! wa-ter expected to result. frOTIl com- <br />merei"l oi] shnle development. The operation study indicates Umt <br />in critic,,] ye"l'S the tot,tl reservoir w"ter yield would be needed <br />to meet those reqllirelnents. <br />]n addition the l\'servoir would provide full replacement require- <br />ments as a substitute for Aspen Resen'oir for the Fryingpan-Arkansas <br />project and the futl/re TWill LnkB6 Reservoir & C,"""l Co. diversions <br />msofa,r as rights below Ruedi are concerned. The operation study <br />maintained the minimum fish flows in the Fryingpa,n Ri,'er of 39 <br />c.f.s. November through April, and 110 c.f.s. May through October <br />reconunended by the Fish and Wildlife Service. The Fryingpan- <br />Arkansas project operating principles proride that these flows be <br />ma.intained immediately below the confluence of Rocky Fork and <br />the Fr,vingpan River a few hundred feet oolo\V Rue,!i Dum; hence, <br />the estimuted flows of Rocky Fork during the months of May, June, <br />and July were considered ,lS being available to contribute to fish-tlow <br />req u i remen ts. <br />Operat,ion' study criterin prmride for ot.her n.llowa.nces, including <br />bypass of rooen"oir inflow during- the irrig:ltion season of about, 8 <br />c.f.s. for de-creed irrigation rights between the Ruedi Dam site and <br />the month of the Fryin[rpnn River, for decreed irrigat.ion ,.ights at <br />Cameo of 1,800 c.f.s. during the irrigation season, and for a dec~ed <br />power right at Cameo of 8UO e.f.s. during the non irrigation season. <br />Only consumptiye-use requirements of municipal and industrial <br />water were conSIdered, because a.ddit.ionu.1 flows would be anlilable in <br />the Colorado River for di,"ersion requirements. The retUl11 flow <br />from municipal and industrial use would enter the river above the <br />point of major existing Use. <br />In the pc:esent study river ]~es and control looses for municipal <br />and maustrIaI releases from Ruedl Resen"OIl' were dlsre.garded. ~lore <br />detailed studies will consider these nuttlers. <br />A detailed study to determine the municipal and industrial supple- <br />mental water requirements for all years was not made. This would <br />]ULve required a daily operation study of the entire Colorado River <br />system above Cameo. However, snch a, detailed dailv study was made <br />for the yeaTS 1934 and 1944. These daily stndies \,'ere based on as- <br />sumptions of a. 300-second-foot. municipal and indust.rial consumptive- <br />use requirement (,veal' ~014) and thnt all existing- decrees including <br />Denver's Blue River syst,em were ill full ope.ration. The study also <br />asslIDled that, the potentml Pm'shall unit Eagle Divide unit. West <br />Divide unit, Rnd Silt project 'were in operat'ion. <br />The ana-lysis showed the municipal and illclustrinl wnter require- <br />ment from Ruedi Reservoir to be 70,000 acre-feet in 1934 and 41,500 <br />