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<br />\~ J\rticle 8
<br />The two Governments recognize that both countries have a common interest in the conservation
<br />and storage of waters in the international reservoirs and in the maximum use of these structures
<br />for the purpose of obtaining the most beneficial, regular and constant use ofthe waters belonging
<br />to them. Accordingly, within the year following the placing in operation of the first of the major
<br />international storage dams which is constructed, the Commission shall submit to each
<br />Government for its approval, regulations for the storage, conveyance and delivery of the waters
<br />of the Rio Grande (Rio Bravo) from Fort Quitman, Texas to the Gulf of Mexico. Such
<br />regulations may be modified, amended or supplemented when necessary by the Commission,
<br />subject to the approval of the two Governments. The following general rules shall severally
<br />govern until modified or amended by agreement of the Commission, with the approval of the two
<br />Governments:
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<br />Article 10
<br />Ofthe waters of the Colorado River, from any and all sources, there are allotted to Mexico:
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<br />(a) A guaranteed annual quantity of 1,500,000 acre-feet (1,850,234,000 cubic meters) to be
<br />delivered in accordance with the provisions of Article 15 ofthis Treaty.
<br />(b) Any other quantities arriving at the Mexican points of diversion, with the understanding that
<br />in any year in which, as determined by the United States Section, there exists a surplus of waters
<br />of the Colorado River in excess of the amount necessary to supply uses in the United States and
<br />the guaranteed quantity of 1,500,000 acre-feet (1,850,234,000 cubic meters) annually to Mexico,
<br />the United States undertakes to deliver to Mexico, in the manner set out in Article 15 of this
<br />Treaty, additional waters ofthe Colorado River system to provide a total quantity not to exceed
<br />1,700,000 acre-feet (2,096,931,000 cubic meters) a year. Mexico shall acquire no right beyond
<br />that provided by this subparagraph by the use ofthe waters ofthe Colorado River system, for any
<br />purpose whatsoever, in excess of 1,500,000 acre-feet (1,850,234,000 cubic meters) annually.
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<br />hl the event of extraordinary drought or serious accident to the irrigation system in the United
<br />States, thereby making it difficult for the United States to deliver the guaranteed quantity of
<br />1,500,000 acre-feet (1,850,234,000 cubic meters) a year, the water allotted to Mexico under
<br />subparagraph (a) of this Article will be reduced in the same proportion as consumptive uses in
<br />the United States are reduced.
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<br />p. 18
<br />"(a) That no commitment for works to be built by the United States in whole or in part at its
<br />expense, or for expenditures by the United States, other than those specifically provided for in
<br />the treaty, shall be made by the Secretary of State of the United States, the Commissioner of the
<br />United States Section of the hlternational Boundary and Water Commission, the United States
<br />Section of said Commission, or any other officer or employee of the United States, without prior
<br />approval of the Congress of the United States.
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