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<br />. <br /> <br />. <br /> <br />Note 4. <br /> <br />Average 1914-1945 Virgin <br />Flow Lee Ferry. . . . . <br /> <br />(Final Report Eng. Advisory <br />~Cammittee to Upper Colorado <br />15,638,500 A.F. (River Basin Commission, Nov. <br />, (29, 1948, Page 3. <br /> <br />Inflow Lee Ferry to Hoover <br />Dam 1,060,000 A.F. <br /> <br />(Bureau of Reclam. 1946 Report <br />(on Colo. River House Document <br />(419, 80th Congress 1st Session, <br />(Page 282. <br /> <br />150,000 A.F. 4 Same authori ty, Page 283 <br /> <br />Inflow Hoover Dam to Gila <br /> <br />Natural channel loss Hoover <br />Dam to Gila -l,030,OOO A.F. (Same authority, Page 283- <br /> <br />Virgin Flow of Gila River l,270,OOO A.F..';(Same authority, Page 284 <br /> <br />Total <br /> <br />17,088,500 A.F. <br /> <br />Upper and Lower Basin <br /> <br />(Colorado River Compact <br />16,000;000 A.F. (Articles III (a) & III (b) <br /> <br />Balance available for <br />Mexico <br /> <br />Compacted to MeXico <br /> <br />1,088,500 A.F. <br /> <br />1,500,000 A.F. (Treaty lidth Mexico, Feb. 1944, <br />(78th Congress, 2nd Session, <br />(Part In ColoradoRi ver Article <br />(10 (a) <br /> <br />Shortage to be made up <br />equally by Lower and Upper <br />Divisions <br /> <br />411,500 A.F.(Colorado River Compact Article <br />(III (c) <br /> <br />Upper Division Share <br /> <br />205,750 A.F.(Colorado River Compact Article <br />(III (c) <br /> <br />Colorado 51.75% Share <br /> <br />l06,475 A.F.(Upper Colorado River Basin <br />Compact Article IV <br /> <br />Incidentally, the "further equitable apportionment II of the Colorado River <br />in 1963, as referred to in Article III (f), Colorado River Compact, will not take <br />place because there is none to apportion. It should also be noted that this short- <br />age results from the virgin flow over the long flow period and if the average flow <br />of the more recent period had been used, the shortage would be some 15% greater. <br /> <br />Note 5. Report of' Regional Director Larson R~gion IV submitted March 1949, reports <br />at page 12, Colorado River Storage Project, nine reservoirs in Upper Basin <br />with a total capacity of 48,065,000 acre feet necessary to iron out wet <br />and dry cycles and provide necessary silt basins in order to fulfill the <br />Upper Division obligation not to deplete the river flOW below an aggregate <br />of 75,000,000 acre feet for any period of ten consecutive years (Article <br />III (d)) and his studies show' an annual evaporation rate on these reser- <br />voirs ranging from 1.5% to 3.2%, with the rate of 2.6% on the Glen Canyon <br /> <br />-2- <br />