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<br />".;) <br />.,:J <br />N <br />( .) <br />~ <br />~1 <br /> <br />10 <br /> <br />The Upper Colorado River Basin Compact of 1949 <br /> <br />For the Upper Basin states to receive federal support for water <br /> <br />storage projects it was necessary for them to divide their 1922 Compact <br /> <br />apportioned water. The agreement reached, embodied in the Upper Colo- <br /> <br />rado River Basin Compact, provided the following: <br /> <br />(1) <br />(2) <br /> <br />3 <br />To Arizona, the consumptive use of 50,000 AF/yr (0.062 kIn /yr); <br /> <br />To the remaining Upper Basin states, the following percentages <br /> <br />of flow remaining after depletions by Arizona: <br /> Colorado 51. 75% <br /> New Mexico 11.25% <br /> Utah 23.00% <br /> Wyoming 14.00% (U.S.C. , 1949) <br /> <br />The Colorado River Storage Project Act of 1956 <br /> <br />This act authorized the Secretary of the Interior to construct, <br /> <br />operate, and maintain the Colorado River storage project and partici- <br /> <br />pating projects, consisting essentially of four Upper Basin reservoirs, <br /> <br />including Glen Canyon Dam. Glen Canyon Dam, which forms Lake Powell, <br /> <br />was completed in 1963 and has a total active capacity of 25 MAF <br />3 <br />(30.8 kIn) (U.S.C., 1956). <br /> <br />Arizona vs. California, 1963 <br /> <br />A conflict remained between the State of Arizona and the other <br /> <br />Basin states with regard to precisely which Basin waters were being <br /> <br />apportioned by the 1922 Compact and the Boulder Canyon Project Act of <br /> <br />1928. Arizona contended that the river water being divided was <br /> <br />the average annual flow measured at Lees Ferry, Arizona. <br />