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OuZU15 18 ASSEMBLY INTERn"I COMMITTEE ON WATER 4. Granting Arizona "the exclusive beneficial consumptive use of the Gila River and its tributaries within the boundaries of said state. " 5. Apportioning to California 4,400,000 acre-feet annually" Provid- ing also that California may annually use one-half of the excess or surplus waters unappropriated by the compact. 6. Subjecting the agreement to all provisions of the compact and .conditioning the tristate agreement on ratification Qf the compact :.....~, j }...'n 011 -j.-J,;...."'..... ",fo+aco I- 1..1,] u.-'..l. ...................... ~""'...'-'''-'. The tristate apportionment agreement authorized by the Project Act was never entered into by the states involved. On June 25, 1929 President Hoover declared the Boulder Canyon Project Act to be effective. It was almost 15 years later, however, before Arizona finally approved and ratified the Colorado River Compact. The Project Act authorized the Secretary of the Interior "under such general regulations as he may prescribe, to contract for the stor- age of water in said reservoir (Lake Mead) and for the delivery there of at such points on the river . . . as may be agreed upon, for irri- gation and domestic uses. . ." The act added, "No person shall have or be entitled to have the use for any purpose of the water stored as aforesaid except by contract made as herein stated." THE MEXICAN TREATY The compact provided as follows with regard to a Mexican Treaty: Article 3(c) if, as a matter of international comity, the United States of America shall hereafter recognize in the United States of Mexico any right to the use of any waters of the Colorado River system such waters shall be supplied first from the waters which are surplus over and above the aggregate of the quantity specified in paragraph (a) and (b) (7.5 million acre-feet to Upper and Lower Basin and Lower Basin option to increase use by one mil- lion acre-feet], and if such surplus shall prove insufficient for this purpose, then, the burden of such deficiency shall be equally borne by the Upper Basin and the Lower Basin, and whenever necessary the states of the Upper Basin shall deliver at Lee Ferry water to supply one-half of the deficiency so recognized in addition to that provided in paragraph (d) [75,000,000 acre-feet for any period of ten consecutive years]. The United States signed a treaty with Mexico on February 3, 1944 (59 Stat. 1219). The treaty guarantees annually to Mexico one and one-half million acre-feet annually provided that in times of surplus the United States would endeavor to deliver not to exceed 1.7 million acre-feet and provided further that in the event of extraordinary drought or serious accident to the irrigation systems of the United States making it difficult for the United States to deliver the guaran- teed 1.5 million acre-feet per year the water delivered to Mexico would be reduced in the same proportion as consumptive uses in the United States are reduced.