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. t- o C") W . . HISTORY OF WATER RESOURCE DEVELOPMENT (continued) "7. The United States will support efforts by Mexico to obtain appropriate financing on favorable terms for the improvement and rehabilitation of Mexicali Valley. The United States will also provide nonreimbursable assistance on a basis mutually acceptable to both countries exclusively for those aspects of the Mexican rehabilitation program of the Mexicali Valley relating to the salinity problem, including tile drainage. In order to comply with the above-mentioned purposes, both countries will undertake negotiations as soon 8S possible. "8. The United States and Mexico shall recognize the under- takings and understandings contained in this Resolution as con- stituting the permanent and definitive solution of the salinity problem referred to in the Joint Communique of President Richard Nixon and President Luis Echeverria dated June 17, 1972. "9. The measures required to implement this Resolution shall be undertaken and completed at the earliest practical date. "10. This minute is subject to the express approval of both Governments by exchange of Notes. It shall enter into force upon such approval; Provided, however, That the provisions which are dependent for their implementation on the construction of works or on other measures which require expenditure of funds by the United States, shall become effective upon the notification by the United States to Mexico of the authorization by the United States Congress of said funds, which will be sought promptly." The passage of the Colorado River Basin Salinity Control Act, Public Law 93-320, on June 24, 1974, authorized construction of the Yuma desalting plant and other works necessary for the United States to comply with the provisions of Minute 242. 5. Colorado River Basin Salinity Control Act On June 24, 1974, Public Law 93-320 was signed by the President. This Act is cited as the "Colorado River llasin Salinity Control Act." The act is divided into Title I, which includes features to comply with the United States obligations to Mexico under Minute 242 of the International Boundary and Water Commi S8 ion J and Ti t Ie I I, which authorizes construc- tion and planning of salinity control features and the goal of maintaining lower main stem salinity concentrations at or below 1972 level. Features authorized for construction under Title 1 include a 100 mi llion gallon a day (4.3B m3fs) desalting plant, a brine discharge canal, lining of the Coachella Canal, acreage retirement and irrigation efficiency improvement programs in the Wellton-Mohawk Irrigation District, and development of a well field along the international boundary. Title II authorizes con- struction of the Paradox Valley, Grand Valley, Las Vegas Wash, and Crystal Geyser salinity control units and the expedited planning of 12 other salinity control projects in the basin above Imperial Dam. 27