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Show (g) All additional consumptive uses provided for in sub-sections (e) and (f) of this section shall be subject to all rights in New Mexico and Arizona as established by the decree entered by the United States District Court for the District of Arizona on June 29, 1935, in United States against Gila Valley Irrigation District and others (Globe Equity Number 59) and to all other rights existing on the effective date of this Act in New Mexico and Arizona to water from the Gila River, its tributaries and underground water sources, and shall be junior thereto and shall be made only to the extent possible without economic injury or cost to the holders of such rights. SEC. 305. (a) Article II (B) (3) of the decree of the Supreme Court of the United States in Arizona against California (376 U.S. 340) shall be so administered that in any year in which, as determined by the Secretary, there is insufficient main stream Colorado River water available for release to satisfy annual consumptive use of seven million five hundred thousand acre-feet in Arizona, California, and Nevada, diversions from the main stream for the Central Arizona unit shall be so limited as to assure the availability of water in quantities sufficient to provide for the aggregate annual consumptive use by holders of present perfected rights, by other users in the State of California served under existing contracts with the United States by diversion works heretofore constructed and by other existing Federal reservations in that State, of four million four hundred thousand acre-feet of main stream water, and by users of the same character in Arizona and Nevada. Water users in the State of Nevada shall not be required to bear shortages in any proportion greater than would have been imposed in the absence of this section 305 (a). This section shall not affect the relative priorities, among themselves, of water users in Arizona, Nevada, and California which are senior to diversons for the Central Arizona unit, or amend any provisions of said decree. (b) The limitation stated in paragraph (a) shall cease whenever the President shall proclaim that works have been completed and are in operation, capable in his judgment of delivering annually not less than two million five hundred thousand acre-feet of water into the main stream of the Colorado River below Lee Ferry from sources outside the natural drainage area of the Colorado River system; and that such sources are adequate, in the President's judgment, to supply such quantities without adverse effect upon the satisfaction of the foreseeable water requirements of any State from which such water is imported into the Colorado River system. Such imported water shall be made available for use in accordance with subsection (c) of this section. (c) To the extent that the flow of the main stream of the Colorado River is augmented by such importations in order to make sufficient water available for release, as determined by the Secretary pursuant to article II (B) (1) of the decree of the Supreme Court of the United States in Arizona against California (376 U.S. 340), to satisfy annual consumptive use of two million eight hundred thousand acre-feet in Arizona, four million four hundred thousand acre-feet in California, and three hundred thousand acre-feet in Nevada, respectively, the Secretary shall make such additional water available to users of main stream water in those States at the same costs and on the same terms as would be applicable if main stream water were available for release in the quantities required to supply such consumptive use, taking into account, among other things, (1) the nonreimbursable allocation to the replenishment of the deficiencies occasioned by satisfaction of the Mexican Treaty burden provided for in section 401, and (2) such assistance as may be available from the development fund established by title IV of this Act. (d) Imported water made available for use in the lower basin to supply aggregate annual consumptive uses from the main stream in excess of seven million five hundred thousand acre-feet shall be offered by the Secretary for use in the States of Arizona, California, and Nevada in the proportions provided in article II (B) (2) of said decree. The Secretary shall establish prices therefor which take into account such assistance as may be available from the development fund established by title IV of this Act in excess of the demands upon that fund occasioned by the requirements stated in subsection (c) of this section. Within each State, opportunity to take such water shall first be offered to persons or entities who are water users as of the effective date of this Act, and in quantities equal to the deficiencies which would result if the total quantity available for consumptive use from the main stream in such State 60 |