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Show Denver 2, Colorado, March 23, 1945. PROJECT PLANNING MEMORANDUM! Subjects Water available from Colorado River for Central Arizona Project -Lover Colorado Basin. 1. The preliminary report now being prepared in the regional office is being based on the assumption of an annual diversion from Colorado River cf 2 million acre-feet, with the further assumption that a capacity of 3,000 second-feet will be provided in the aqueduct to permit this diversion to '• e made during a period of 11 months. Ultimately the State of Arizona must decide how much of its Colorado Fiver water it will elect to use in central Arizona and how much on other prospective developments within the state, but as a basis of that decision they desire to have a report and n preliminary estimate of cost for the Central Arizona Project. For a first trial, the tentatively selected capacity appears satisfactory. Prior to preparing construction plans we will wish to review this problem in greater detail and discuss it with Arizona. The purpose of this memorandum is to discus? some of the problems incident to determining the amount of Colorado Fiver water available for diversion to Central Arizona. Arizona contract 2. Article 7 of the contract between the State of Arizone and the Secretary of the Interior dated February 9, 1944, provides: •(a) Subject to the availability thereof for use in Arizona unaer the provisions of the Colorado River Compact end the Boulder Canyon Project Act, the United States shrll deliver "ni Arizona, or agencies or water users therein, will fiecept under this contract each calendar yetr from storage in Lake Mead, ... so much wst.er as m?y be necessary for the beneficial consumptive use for irrigation vjid domestic uses in Arizona of a maximum of 2,800,000 rtm-feet. "(b) The United States also shall deliver from storage in Lake Mend for use in Arizona, .... one h- If of any excess or surplus waters unapportioned by the Colorado River Compact to the extent such water is available for use in Arizona under suid compact end Bald act, 1«bb such excess or surplus -water unapportioned by said Compact as may be used in Nevada, New Mexico, >nd Utah in accordance with the rights of said states as 6tated in subdivisions (f) and (g) of this Article." * (d) The obligation to deliver water ;.t or below Boulder Dam shall tie diminished to the; extent thr t consumptive uses nov. or hereafter existing in Arizona above Lake Mead diminish the flow into Lake Mead, and such obligation shall be subject to such |
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Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : |