Mexican Water Treaty of 1944

E708924

bilateral treaty international treaty water allocation agreement

The Mexican Water Treaty of 1944 is an international agreement between the United States and Mexico that allocates and regulates the sharing of waters from the Colorado River and other border rivers.

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All labels observed (6)

Label	Occurrences
Mexican Water Treaty of 1944 canonical	3
1944 United States–Mexico Water Treaty	2
1944 Treaty on the Utilization of Waters of the Colorado and Tijuana Rivers and of the Rio Grande	1
1944 U.S.–Mexico Water Treaty	1
1944 Water Treaty between the United States and Mexico	1
Treaty relating to the Utilization of Waters of the Colorado and Tijuana Rivers and of the Rio Grande	1

How this entity was disambiguated

This entity first appeared as the object of triple T8067999 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Mexican Water Treaty of 1944
Context triple: [Colorado River Compact, relatedAgreement, Mexican Water Treaty of 1944]

A. Boundary Waters Treaty of 1909
The Boundary Waters Treaty of 1909 is a foundational agreement between the United States and Canada that established principles and mechanisms for preventing and resolving disputes over shared boundary waters.
B. Treaty of Mesilla
The Treaty of Mesilla was an 1853 agreement between the United States and Mexico that finalized the Gadsden Purchase, transferring land in present-day southern Arizona and New Mexico to the U.S. to facilitate a southern transcontinental railroad route.
C. Treaties of Mexico
Treaties of Mexico are formal international agreements that define Mexico’s legal, economic, and political relations with other countries and organizations.
D. Treaty of Itaipu
The Treaty of Itaipu is the 1973 bilateral agreement between Brazil and Paraguay that established the terms for constructing and jointly operating the Itaipu hydroelectric dam on the Paraná River.
E. Rio Treaty
The Rio Treaty is a 1947 mutual defense pact among many countries of the Americas, establishing that an attack against one signatory is to be considered an attack against all.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Mexican Water Treaty of 1944
Target entity description: The Mexican Water Treaty of 1944 is an international agreement between the United States and Mexico that allocates and regulates the sharing of waters from the Colorado River and other border rivers.

A. Boundary Waters Treaty of 1909
The Boundary Waters Treaty of 1909 is a foundational agreement between the United States and Canada that established principles and mechanisms for preventing and resolving disputes over shared boundary waters.
B. Treaty of Mesilla
The Treaty of Mesilla was an 1853 agreement between the United States and Mexico that finalized the Gadsden Purchase, transferring land in present-day southern Arizona and New Mexico to the U.S. to facilitate a southern transcontinental railroad route.
C. Treaties of Mexico
Treaties of Mexico are formal international agreements that define Mexico’s legal, economic, and political relations with other countries and organizations.
D. Treaty of Itaipu
The Treaty of Itaipu is the 1973 bilateral agreement between Brazil and Paraguay that established the terms for constructing and jointly operating the Itaipu hydroelectric dam on the Paraná River.
E. Rio Treaty
The Rio Treaty is a 1947 mutual defense pact among many countries of the Americas, establishing that an attack against one signatory is to be considered an attack against all.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	bilateral treaty ⓘ international treaty ⓘ water allocation agreement ⓘ
aimsTo	prevent and resolve water disputes between the United States and Mexico ⓘ promote equitable sharing of transboundary waters ⓘ
allocatesToMexico	1.5 million acre-feet of Colorado River water per year ⓘ
appliesToRegion	United States–Mexico border ⓘ linked to: U.S.–Mexico border
appliesToRiver	Colorado River ⓘ Rio Grande ⓘ Tijuana River ⓘ
bindingOn	federal governments of the United States and Mexico ⓘ
countryInvolved	United Mexican States ⓘ linked to: Mexican Federation United States of America ⓘ
dateSigned	1944 ⓘ
establishesBody	International Boundary and Water Commission ⓘ
field	international relations ⓘ water resources management ⓘ
governs	operation of international storage dams on the Colorado River ⓘ operation of international storage dams on the Rio Grande ⓘ
hasAnnex	Minute 242 ⓘ Minute 319 ⓘ Minute 323 ⓘ
hasEffectOn	agricultural irrigation in northern Mexico ⓘ agricultural irrigation in the southwestern United States ⓘ urban water supply in border regions ⓘ
language	English ⓘ Spanish ⓘ
legalStatus	in force ⓘ
negotiatedBy	diplomatic representatives of Mexico ⓘ diplomatic representatives of the United States ⓘ
providesFor	construction of storage dams and reservoirs ⓘ flood control measures ⓘ hydroelectric power development coordination ⓘ sanitation projects along the border ⓘ
regulates	distribution of Colorado River water between the United States and Mexico ⓘ distribution of Rio Grande water between the United States and Mexico ⓘ distribution of Tijuana River water between the United States and Mexico ⓘ
relatedTo	United States–Mexico border treaties ⓘ linked to: Treaties of Mexico international environmental law ⓘ
signatory	United Mexican States ⓘ linked to: Mexican Federation United States of America ⓘ
subjectTo	interpretation by the International Boundary and Water Commission ⓘ
topic	international river law ⓘ irrigation water supply ⓘ transboundary water management ⓘ water allocation ⓘ

How these facts were elicited

Referenced by (9)

Full triples — surface form annotated when it differs from this entity's canonical label.

Colorado River Compact → relatedAgreement → Mexican Water Treaty of 1944 ⓘ

Law of the River → includesInstrument → Mexican Water Treaty of 1944 ⓘ

Colorado River Basin → governedBy → Mexican Water Treaty of 1944 ⓘ

Lower Colorado River water management system → governedBy → 1944 United States–Mexico Water Treaty ⓘ