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<br />C. Po",er Generation - Lakes Hene! and I'"",ell <br />-- -------.------. <br /> <br />Moat of thp. CORt of conRtructinp; nnd opcr[ltin~, <:!c-n Cnnyon llIH\ <br />Hoover Dams is being repaid from rcvr.nucs from the 9111e of clcclr1cnl <br />,merr,y. Projected operation of both I.akes Powell and Head reflect,; <br />this leJ\ialative requirement as well afl the contrac tual obligation" <br />entered into by the United States and energy purveyor fl. The 9chedu Ie <br />of (;len Canyon and 1I0over Dam energy f\eneration (nee Appendix II) IN <br />}'lls"d on the followIng: <br /> <br />1. ContrActual firm energy requirements. <br /> <br />2. IIvailable hydroenergy from Colorado !{iver Stor,,{;e Project <br />reservoirs. <br /> <br />3. Energy available from outside sources through direct <br />purchase or interchange agreements. <br /> <br />4. National priorities. <br /> <br />Glen Canyon and Hoover Dam release schedules, shown in Appenclb ^, <br />reflect these requirements while maintaining reasonable integration <br />",ith other national objeccives, such as maintenance of a fishery and <br />recreational opportunities where possible. <br /> <br />D. ~'on-l.t:.o!.~JLE.LQ~En ti'p_ns <br /> <br />The actunl day-to-day operations of Lake I'owcll :lnd I."ke Head arc <br />monitored and compared ",ah the projected operation in ti,e mOHt current <br />operatJ.on plan. Deviations of more than 2 feet in the actunl water <br />surface elevation of Lake Po",ell or Lake 11ead from the elevation thnt <br />",ould be obtained by aaauming a fltraight line between the elevation nt <br />the bep.inning of the month and the projected elevntion at the end of the <br />month at either reservoir ",ill be reported by telephone to interested <br />parties. Further, a letter explaining the reason for the deviation and, <br />when appropriate, a revised 12-month projection will be sent to such <br />interested parties within 7 days after the deviation. <br /> <br />Explanations of the causes that result in deviations will be <br />included in the discussions of the actual operation for each month in <br />update of Appendix C. <br /> <br />23 <br />