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<br /> <br /> <br />. <br /> <br />OS8~) <br /> <br />The April 1 snow surveys and subsequent runoff forecast indicated <br />that the reservoir should not be drawn down further if we were to <br />assure refilling by July I, 1972. <br /> <br />The lowest stage was reached on April 24, 1972, when the storage was <br />61,215 acre-feet. <br /> <br />Inflow to Ruedi Reservoir during the May through July period was <br />slightly less than that predicted in the outlook for most probable <br />condi tions. <br /> <br />The total volume of inflow to Ruedi Reservoir during the spring run- <br />off season was 95 percent of that anticipated in the 1972 outlook <br />under most probable conditions. The monthly pattern varied slightly <br />from that assumed. <br /> <br />On July 1, 1972, Ruedi Reservoir storage was 102,810 acre-feet. By <br />July 3, storage had reached a maximum for the year at 103,000 acre- <br />feet. This storage content has a corresponding water surface eleva- <br />tion of 7766.64 or 0.64 foot above the spillway crest. <br /> <br />At the request of the Colorado River interests a minimum of 150 c.f.s. <br />was released during August. This resulted in a storage drawdown of <br />about 4,000 acre-feet. <br /> <br />. <br /> <br />A minor variation was made from the estimated plan of operation in <br />September. At the request of the Colorado Department of Natural <br />Resources, Division of Wildlife, the release from Ruedi Reservoir <br />was reduced to 50 c.Ls. for one 5-day period to allow electrofishing <br />of the Fryingpan River. This electrofishing was for fish counting <br />and tagging as a part of a migration and spawning study. <br /> <br />On October 1, 1972, there were 95,657 acre-feet in storage in Ruedi <br />Reservoir. <br /> <br />Table 1 and exhibit 3 show the 1972 operation of Ruedi Reservoir. <br /> <br />Collection System <br /> <br /> <br />The initial diversions by the project occurred on May 16, 1972. Div- <br />ersions were made simultaneously from Chapman GUlch, South Fork, and <br />the main stem of the Fryingpan River. Diversions from Sawyer Creek <br />were added to the other three diversions starting June 7. Sawyer <br />Creek flows are diverted into Chapman Gulch above the Chapman diver- <br />sion and are measured as a part of the Chapman diversions. The fish <br />bypass requirements as used in the 1972 operation were as. follows: <br /> <br />. <br /> <br />7 <br />