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43 U.S.C. § 1512 — Mexican Water Treaty

Federal law — U.S. Code and appendices · legal_authorities

43 U.S.C. § 1512 — Mexican Water Treaty

The Congress declares that the satisfaction of the requirements of the Mexican Water Treaty from the Colorado River constitutes a national obligation which shall be the first obligation of any water augmentation project planned pursuant to [section 1511 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title43-section1511&num=0&edition=prelim) and authorized by the Congress. Accordingly, the States of the Upper Division (Colorado, New Mexico, Utah, and Wyoming) and the States of the Lower Division (Arizona, California, and Nevada) shall be relieved from all obligations which may have been imposed upon them by article III(c) of the Colorado River Compact so long as the Secretary shall determine and proclaim that means are available and in operation which augment the water supply of the Colorado River system in such quantity as to satisfy the requirements of the Mexican Water Treaty together with any losses of water associated with the performance of that treaty: Provided, That the satisfaction of the requirements of the Mexican Water Treaty (Treaty Series 994, 59 Stat. 1219), shall be from the waters of the Colorado River pursuant to the treaties, laws, and compacts presently relating thereto, until such time as a feasibility plan showing the most economical means of augmenting the water supply available in the Colorado River below Lee Ferry by two and one-half million acre-feet shall be authorized by the Congress and is in operation as provided in this chapter.

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Source location: Title 43, Chapter 32, § 1512; chapter-032-colorado-river-basin-project.md

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Federal law — U.S. Code and appendices · legal_authorities

43 U.S.C. § 1501 — Congressional declaration of purpose and policy

**(a)** It is the object of this chapter to provide a program for the further comprehensive development of the water resources of the Colorado River Basin and for the provision of additional and adequate water supplies for use in the upper as well as in the lower Colorado River Basin. This program is declared to be for the purposes, among others, of regulating the flow of the Colorado River; controlling floods; improving navigation; providing for the storage and delivery of the waters of the Colorado River for reclamation of lands, including supplemental water supplies, and for municipal, industrial, and other beneficial purposes; improving water quality; providing for basic public outdoor recreation facilities; improving conditions for fish and wildlife, and the generation and sale of electrical power as an incident of the foregoing purposes. **(b)** It is the policy of the Congress that the Secretary of the Interior (hereinafter referred to the “Secretary”) shall continue to develop, after consultation with affected States and appropriate Federal agencies, a regional water plan, consistent with the provisions of this chapter and with future authorizations, to serve as the framework under which projects in the Colorado River Basin may be coordinated and constructed with proper timing to the end that an adequate supply of water may be made available for such projects, whether heretofore, herein, or hereafter authorized.

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Federal law — U.S. Code and appendices · legal_authorities

43 U.S.C. § 1511 — Reconnaissance investigations by Secretary of the Interior; reports; 10-year moratorium on water importation studies

Pursuant to the authority set out in the Reclamation Act of June 17, 1902, 32 Stat. 388, and Acts amendatory thereof or supplementary thereto, and the provisions of the Water Resources Planning Act of July 22, 1965, 79 Stat. 244, as amended [[42 U.S.C. 1962](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section1962&num=0&edition=prelim) et seq.], with respect to the coordination of studies, investigations and assessments, the Secretary of the Interior shall conduct full and complete reconnaissance investigations for the purpose of developing a general plan to meet the future water needs of the Western United States. Such investigations shall include the long-range water supply available and the long-range water requirements in each water resource region of the Western United States. Progress reports in connection with these investigations shall be submitted to the President, the National Water Commission (while it is in existence), the Water Resources Council, and to the Congress every two years. The first of such reports shall be submitted on or before June 30, 1971, and a final reconnaissance report shall be submitted not later than June 30, 1977: Provided, That for a period of ten years from November 2, 1978, any Federal official shall not undertake reconnaissance studies of any plan for the importation of water into the Colorado River Basin from any other natural river drainage basin lying outside the States of Arizona, California, Colorado, New Mexico, and those portions of Nevada, Utah, and Wyoming which are in the natural drainage basin of the Colorado River.

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Federal law — U.S. Code and appendices · legal_authorities

43 U.S.C. § 1552 — Criteria for long-range operation of reservoirs

**(a) Promulgation by Secretary; order of priorities** In order to comply with and carry out the provisions of the Colorado River Compact, the Upper Colorado River Basin Compact, and the Mexican Water Treaty, the Secretary shall propose criteria for the coordinated long-range operation of the reservoirs constructed and operated under the authority of the Colorado River Storage Project Act [[43 U.S.C. 620](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title43-section620&num=0&edition=prelim) et seq.], the Boulder Canyon Project Act [[43 U.S.C. 617](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title43-section617&num=0&edition=prelim) et seq.], and the Boulder Canyon Project Adjustment Act [[43 U.S.C. 618](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title43-section618&num=0&edition=prelim) et seq.]. To effect in part the purposes expressed in this paragraph, the criteria shall make provision for the storage of water in storage units of the Colorado River storage project and releases of water form Lake Powell in the following listed order of priority: (1) releases to supply one-half the deficiency described in article III(c) of the Colorado River Compact, if any such deficiency exists and is chargeable to the States of the Upper Division, but in any event such releases, if any, shall not be required in any year that the Secretary makes the determination and issues the proclamation specified in [section 1512 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title43-section1512&num=0&edition=prelim); (2) releases to comply with article III(d) of the Colorado River Compact, less such quantities of water delivered into the Colorado River below Lee Ferry to the credit of the States of the Upper Division

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Federal law — U.S. Code and appendices · legal_authorities

43 U.S.C. § 1571 — Water quality improvement

**(a) Authority to proceed with program** The Secretary of the Interior, hereinafter referred to as the “Secretary”, is authorized and directed 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, and to enable the United States to comply with its obligations under the agreement with Mexico of August 30, 1973 (Minute No. 242 of the International Boundary and Water Commission, United States and Mexico), concluded pursuant to the Treaty of February 3, 1944 (TS 994), in accordance with the provisions of this chapter. **(b) Desalting complexes and plants** (1) The Secretary is authorized 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 (hereinafter referred to as the division), including a pretreatment plant for settling, softening, and filtration of the drain water to be desalted; (2) the necessary appurtenant works including the intake pumping plant system, product waterline, power transmission facilities, and permanent operating facilities; (3) the necessary extension in the United States and Mexico 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, with the part in Mexico, subject to arrangements made pursuant to subsection (d); (4) replacement of the metal flume in the existing main outlet drain extension with a concrete siphon; (5) reduction of the quantity of irrigation return flows through acquisition of lands to reduce the size of the division, and irrigation efficiency improvements to minimi

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Federal law — U.S. Code and appendices · legal_authorities

43 U.S.C. § 1512 — Mexican Water Treaty

Page 400 TITLE 43—PUBLIC LANDS § 1512 sources of the western United States authorized by the Colorado River Basin Project Act [43 U.S.C. 1501 et seq.]. (Pub. L. 91–611, title II, § 203, Dec. 31, 1970, 84 Stat. 1828.) Editorial Notes REFERENCES IN TEXT The Colorado River Basin Project Act, referred to in text, is Pub. L. 90–537, Sept. 30, 1968, 82 Stat. 885, which is classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under section 1501 of this title and Tables. CODIFICATION Section was not enacted as part of the Colorado River Basin Project Act which comprises this chapter. § 1512. Mexican Water Treaty The Congress declares that the satisfaction of the requirements of the Mexican Water Treaty from the Colorado River constitutes a national obligation which shall be the first obligation of any water augmentation project planned pursu- ant to section 1511 of this title and authorized by the Congress. Accordingly, the States of the Upper Division (Colorado, New Mexico, Utah, and Wyoming) and the States of the Lower Divi- sion (Arizona, California, and Nevada) shall be relieved from all obligations which may have been imposed upon them by article III(c) of the Colorado River Compact so long as the Sec- retary shall determine and proclaim that means are available and in operation which augment the water supply of the Colorado River system in such quantity as to satisfy the requirements of the Mexican Water Treaty together with any losses of water associated with the performance of that treaty: Provided, That the satisfaction of the requirements of the Mexican Water Treaty (Treaty Series 994, 59 Stat. 1219), shall be from the waters of the Colorado River pursuant to the tre

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