Colorado River Basin Salinity Control Act

Summary

Colorado River Basin Salinity Control Act - Title I: Programs Downstream from Imperial Dam - Authorizes and directs the Secretary of the Interior to proceed with a program of works of improvement for the enhancement and protection of the quality of water available in the Colorado River for use in the United States and the Republic of Mexico, in accordance with the provisions of this Act. Directs the Secretary to construct, operate, and maintain a desalting complex, including: (1) a desalting plant to reduce the salinity of drain water from the Wellton-Mohawk division of the Gila project, Arizona, (2) the necessary appurtenant works including the intake pumping plant system, product waterline, power transmission facilities, and permanent operating facilities; (3) the necessary extension of the existing bypass drain to carry the reject stream from the desalting plant and other drainage waters to the Santa Clara Slough in Mexico, subject to arrangements made pursuant to this Act; (4) replacement of the metal flume in the existing main outlet drain extension with a concrete siphon; (5) reduction of irrigation return flows through acquisition of lands to reduce the size of the division, and irrigation efficiency improvements to limit return flows; and (6) regulation of Gila River floodwaters entering the division, including possible acquisition of private lands above Painted Rock Dam in Arizona. Provides that the desalting plant shall be designed to reduce the salinity of approximately one hundred and twenty-nine million gallons a day of drain water by a membrance process using advanced technology commercially available. Requires that the Secretary shall use sources of electric power supply for the desalting complex that will not diminish the supply power to preference customers from Federal power systems operated by the Secretary. Authorizes the appropriation of $153,500,000 to accomplish the purposes of this title. Title II: Measures Upstream from Imperial Dam - Directs the Secretary of the Interior to implement the salinity control policy adopted for the Colorado River in the "Conclusions and Recommendations" published in the Proceedings of the Reconvened Seventh Session of the Conference in the Matter of Pollution of the Interstate Waters of the Colorado River and Its Tributaries in the States of California, Colorado, Utah, Arizona, Nevada, New Mexico, and Wyoming, held in Denver, Colorado, on April 26-27, 1972, under the authority of the Federal Water Pollution Control Act. Authorizes the appropriation of $121,200,000 to carry out this title.

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3 official files

• Public Law (PDF)

  Public Law · EN · 25 June 1974

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• Public Law

  summary · EN · 24 June 1974

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• Introduced in House

  summary · EN · 21 January 1974

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