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<br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />will resuJ. t in higher sustained releases in late irrigation season <br />months and will tend to improve quality of water for irrigation. A <br />continuous water supply of excellent quality wouJ.d be provided for <br />municipal use from Grey Mountain reservoir. Further study of <br />quality of water, particularly from the standpoint of public heaJ.th, <br />will be required during feasibility investigations. <br /> <br /> <br />Fish, wiJ.d1ife, and recreation--each of the project reservoirs <br />will have an inactive pool for the purpose of furnishing additional <br />power head, and providing minimum pools for fishery and recreation. <br />Size and depths of these minimum storage pools are listed below: <br /> <br /> Minimum Stora~e pools <br />Reservoir Depth Surface Area Content <br /> Feet Acres Acre-feet <br />Idyl,nlde 113 330 ll,OOO <br />Kinnikinick Afterbay .20 12 J.50 <br />Ca.che 1e. Poudre Forebay 55 28 80G. <br />Grey Mountain ll5 400 20,000 <br /> <br />.' <br /> <br />Bureau of sport Fishery and Wildlife personneJ. furnished tenta- <br />tive estimates of minimum flows for fishery purposes below Rustic <br />Diversion Dam and below Grey Mountain Dam. Power reJ.eases between <br />Kinnikinick Afterbay flowing to Rustic Diversion Dam wouJ.d insure <br />adequate fJ.ows to maintain the fishery in that reach of the river. <br />The fish releases at Rustic Diversion Dam represent 28,500 acre-teet <br />per year which wouJ.d otherwise be available for power production at <br />the Cache 1e. Poudre Powerpla.nt. This fishery release couJ.d maintain <br />the following flow below Rustic Diversion Dam: <br /> <br />Minimum fish flows used in hydrology studies <br /> <br />BeJ.ow Rustic Diversion Dam1 <br />September 15 ... June 1 .........-....... <br />June 1 - September 15 ................ <br />Below Grey Mountain Dam: <br />October 1 - May 1 ................... <br />May 1 - October 1 ................... <br /> <br />25 cfs <br />75 cfs <br /> <br />80 cfs <br />llO cfs <br /> <br />Reconnaissance operation studies indicate flows in the river <br />below Grey Mountain Reservoir wouJ.d exceed the recommended minimums <br />from May 1 to October J.. The reconunended winter fish flows wouJ.d be <br />maintained to the vicinity of Fort Collins and the water reguJ.ated for <br />irrigation use by Windsor, Timna.th, Fossil Creek, and other smaller <br />reservoirs. The detaiJ.ed studies of the required operational arrange- <br />ments with the above-mentioned reservoirs and the additional Grey <br />Mountain reJ.eases necessary for maintaining the minimum fish flow <br /> <br />34 <br />