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1 ',;.' .\~ << :if J~ ,-f' ~. LEEDS, HILL AND JEWETT. INC. projects and those authorized before 1949 for construction in Utah alone account for more than two-thirds of the 23 per cent available to that State, if California's existing uses are not to be curtailed under the decree recommended by the Special Master. Utah must, of course, bear its share of reservoir losses from Colorado River Storage Projects, so that there would be little more than half enough water available for Participating Projects in Utah, already authorized and in part under construction. Wyoming would be in a somewhat better position, but its 14 per cent share of 4,000,000 acre feet would be exhausted soon after 1980 if developments proceed as projected (Table E). Depletions by existing projects amount to 239,000 acre feet and Participating Projects to Colorado River Storage Project are estimated to deplete the flow of Colorado River by 104,000 acre feet in 1980 and eventually by 156,000 acre feet per year. The Sublette Project and the portion of the Savory- Pot Hook Project in Wyoming are expected to deplete the river to the extent of 65,000 acre feet in 1980, and eventually to the extent of 118,000 acre feet per year. There would remain, therefore, a very small margin, if any, for municipal and industrial uses unless the Participating Projects were cut back. The t6ta1 projected depletion of the virgin flow of Colorado River at Lee Ferry is recapitulated in Table F with the assumption that there would be no expansion of existing us es in the Upper Basin portion of Arizona. The totals shown in that Table are summarized below: -9-