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. so that a second set of results is obtained. Typically, beginning water years are indexed at 5-year intervals so that 15 sequences or sets of results are obtained. However, in this study, each and every year was indexed so that 75 sequences are obtained. Depletion Schedule Utilizing input from the Upper Basin States, the Burec estimates the most likely development of future water projects in the Upper Basin. These estimates were revised in August 1982. The revision mostly involved the five projects in Colorado and Wyoming which were classified inactive and their on-line date was scheduled for the year 2040. A complete tabulation of consumptive use by project as provided by BuRec is attached as Appendix B. Minimum Release Schedule In compliance with the Operating Criteria, Glen Canyon Dam must annually release a minimum of 8,230,000 ac-ft. A monthly schedule of releases is supplied to the model to satisfy that condition. The monthly schedule is designed to approximate the pattern of the system firm power load. Glen Canyon Monthly Re 1 ease Schedule (1000 Ac-Ft) Month Release Month Release - - Oct 568 Apr 578 Nov 560 May 551 Dec 856 Jun 585 Jan 889 Ju1 1045 Feb 527 Aug 1012 Mar 510 Sep 609 Starting Conditions Reservoir conditions at the beginning of the study were set equal to actual reservoir conditions at the end of water year 1982. The study started in October 1982 and continued for 27 years ending in September 2009. The following table shows the starting reservoir conditions. Water Surface Bank Surf ace Elevation Storage Storage Reservoir (feet) ( 1000 Ac-Ft) ( 1000 Ac-Ft) Fontene 11 e 6,503.56 0 326 Flaming Gorge 6,035.72 108 3,572 Blue Mesa 7,509.25 0 739 Morrow Point 7,154.47 0 113 Crystal 6,749.96 0 16 Navajo 6,072.14 0 1,506 Lake Powell 3,687.27 10,323 23,005 Lake Mead 1,198.96 1,480 22,766 2