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<br />093\) <br /> <br />. <br /> <br />Operation plans call for drawing the reservoir down to a point 2 feet <br />below the spillway crest and holding at this stage until August 1. For <br />the remainder of the water year, releases equnling the reservoir inflows <br />will be made, but in the month of August releases of not less than <br />150 c. f. s. will be made. <br /> <br />Table 3 and exhibit 5 show anticipated 1971 water year operation of <br />Ruedi Reservoir. <br /> <br />Turquoise Lake <br /> <br />Planned operation of Turquoise Lake for water year 1971 was made <br />assuming ideal conditions and complying with as many requests by <br />involved entities as possible. It is recognized that in actual operation <br />circumstances may require some variation from the plan. To simulate <br />ideal conditions, the presence of the aggregate stockpile was not <br />considered as a limit to storage after May 1, 1971. <br /> <br />. <br /> <br />For October through March period, native inflow was considered to be <br />the same for all three conditions and was equal to the 1949 through 1964 <br />average native inflow for those months. Native inflow was stored to the <br />CF&1 account in October, November, and December. Busk-Ivanhoe <br />imports were the average historical Busk-Ivanhoe imports for the years <br />1949 through 1964. <br /> <br />For the October through March period, Homestake project imports were <br />varied according to estimates made by the Homestake project personnel <br />under the three conditions. In each case sufficient imports were made <br />to supply a 30 c. f. s. release to Trout Creek Pumping Plant, plus <br />additional water for storage to the Homestake account in Turquoise <br />Lake. The rate of additional imports was sufficient to assure Homestake <br />project ownership at the end of April of 17,000 acre-feet, 9,000 acre- <br />feet and 25,000 acre-feet under most probable, reasonable minimum, <br />and reasonable maximum conditions, respectively, and without limita- <br />tion on storage. Since a limitation of 46,400 acre-feet of storage was <br />set so as not to encroach on the gravel stockpile, Homestake imports <br />were limited accordingly. <br /> <br />. <br /> <br />Part of Homestake project's Trout Creek Pumping Plant requirement <br />was furnished by exchange with Pueblo Water Board's water from Twin <br />Lakes; thus, water was stored in Turquoise Lake at a rate of 30 c. f. s. <br />to the credit of Pueblo Water Board until their ownership had accumulated <br />to a total of S, 000 acre-feet. In those cases where storage was curtailed to <br />avoid encroachment on the aggregate stockpile, the goal of 8,000 acre-feet <br />was not attained in this exchange. <br /> <br />11 <br />