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<br />,J !'~. '"1 . <br />J......\.. <br /> <br />The ~ation plan for Water Year 1979 <br /> <br />. <br /> <br />~stem Slope Collection System <br /> <br />There are six diversion p:>ints ccmpleted on the western slope: Sawyer <br />Creek Olaj:llla11. Gulch. South Fork of the Fryingpan River, Fryingpan River <br />at ~ Creek, Lily Pad, and Ivanhoe Creek. Transrrountain diversions <br />at these p:>ints will be regulated so that no diversions will be II\3.de <br />that will reduce remaining aggregate streamflCMS to less than the <br />minimum standards oontained in the Fryingpan-Arkansas Project Operating <br />Principles. For plarming purposes, data fran the =llection system <br />yield and sizing studies were used to detennine the diversions in 1979. <br />The 10-, 50-, and 90-percent chance values were obtained fran the <br />prob:lbili ty curve shown on Exhibit 2 and are =nsidered to represent the <br />reasonable minimum, rrost probable, and reasonable maximum diversions, <br />respectively. It is intended that, throughout the year, all water that <br />is physically available above the minimum bypass requirements will be <br />diverted. Additional diversion points located at North, Middle and <br />South Cunnigham Creeks and funron Creek lI\3.y be operated in 1979 if <br />cxmstzuction is finished in time for the ejiversion season. The minimum <br />bypass for funron Creek diver~ion is 2 ft ~s, for North and Middle <br />Cunningham diversions is 1 ft Is, and 0 ft /s for South Cunningham <br />Creek. '1he reasonable minimum, naxirnum and rrost probable diversions for <br />these four si tes are not reflected in Tables 4, 5 and 6. <br /> <br />. <br /> <br />Feservoirs (General) <br /> <br />Wree detailed ncnthly operations studies have been II\3.de which simulate <br />the proposed operation of Ruedi Feservoir, Turqmise Lake, and Pueblo <br />Feservoir. 'IW:> of the studies simulate operations with extrenely high <br />and lCM water supply oonditons. Feservoir inflCM in 1979 has a l-in-lO <br />chance of being less than the reasonable minimum, and a l-in-lO chance <br />of being greater than the reasonable maximum. Therefore, actual opera- <br />tions in 1979 have a 8-in-lO chance of falling between the limits of the <br />extretOO! oonditions. '1he third study simulates operations with /lOSt <br />prob:lble water supply oondi tions. <br /> <br />In preparing the operation studies, it was intended to provide the <br />necessary flexibility. to change fron one set of oonditions to another. <br />The ever-changing situation regarding inflows, downstream requirements <br />etc., w~ll require nany adjust:m:mts. c:peration schedules will be adj~ted <br />as requued. Forecasts of the April through July reservoir inflow will <br />be started on FebIUary 1, 1979, and oontinue on the first of each succeed- <br />ing rronth through Nay 1. <br /> <br />. <br /> <br />9 <br />