Colorado River

• Colorado River Storage and Interstate Release Agreement among the United States of America, acting through the Secretary of the Interior; the Arizona Water Banking Authority; the Southern Nevada Water Authority; and the Colorado River Commission of Nevada (PDF)
• Exchange of notes constituting an agreement concerning the loan of waters of the Colorado River for irrigation of lands in the Mexicali Valley. Done in Mexico City, 24 August 1966
• Treaty to Resolve Pending Boundary Differences and Maintain the Rio Grande and Colorado River as the International Boundary between the United States of American and Mexico. Signed at Mexico, 23 November 1970. 23 U.S.T. 371, T.I.A.S. No. 7313 (PDF)
• International Boundary and Water Commission, United States and Mexico, Minute 242, Permanent and Definitive Solution to the International Problem of the Salinity of the Colorado River, 30 August 1973 (PDF)
• Treaty between the United States of America and Mexico relating to the utilization of the Waters of the Colorado and Tijuana Rivers and of the Rio Grande, signed at Washington February 3, 1944; protocol signed at Washington November 14,1944, Entered into force November 8,1945, 59 Stat. 1219; Treaty Series 994 (PDF)
• Minutes of the International Boundary & Water Commission of the United States and Mexico

Columbia River

• Exchange of Notes Constituting an Agreement between Canada and the United States of America regarding Disposal Within the United States of the Canadian Entitlement to Downstream Power Benefits Under the Columbia River Treaty (with Agreement of 29 March 1999). Done in Washington 31 March 1999
• Exchange of Notes Constituting an Agreement between Canada and the United States of America regarding Sale of Canada’s Entitlement to Downstream Benefits Under the Treaty Relating to Co-operative Development of the Water Resources of the Columbia River Basin, Signed at Washington, 17 November 1961, Came into force 22 January 1964
• Exchange of Notes Constituting An Agreement Between Canada and the United States of America Authorizing the Canadian Entitlement Purchase Agreement Provided for Under the Treaty Relating to Co-Operative Development of the Water Resources of the Columbia River Basin, Done in Washington: 17 January 1961: in Ottawa: 16 September 1964; in force, 16 September 1964
• Treaty relating to cooperative development of the water resources of the Columbia River Basin (with Annexes), Done 17 January 1961

Niagara River

• U.S. Environmental Protection Agency - Canada Department of the Environment - New York Department of Environment and Conservation - Ontario Ministry of Environment Declarations of Intent Relating to the Niagara River and Lake Ontario Toxic Management Plans (1987)
• Declaration of Intent Relating to the Niagara River Toxics Management Plan (1987)
• Exchange of Notes Constituting an Agreement Between the United States and Canada for the Temporary Diversion for Power Purposes of the Water Normally Flowing over the American Falls at Niagara . Washington, 21 March 1969; in force 20 May 1969
• Exchange of Notes Constituting an Agreement Between the United States and Canada for the Construction of a Temporary Cofferdam at Niagara . Washington, 21 March 1969; in force 21 March 1969
• Exchange of Notes Constituting an Agreement Between the United States and Canada Relating to the Construction of Remedial Works at Niagara Falls . Ottawa 13, September 1954; in force 13 September 1954
• Treaty Concerning the Diversion of the Niagara River (1950)
• Treaty between the United States of America and Canada relating to the uses of the waters of the Niagara River. Signed at Washington, 27 February 1950; in force 10 October 1950
• Exchange of Notes Constituting an Agreement Between the United States of America and Canada Relating to Additional Temporary Diversion for Power Purposes of the Niagara River Above Niagara Falls. Washington, 27 October 1941; in force 27 November 1941
• Exchange of Notes Constituting an Agreement Between the United States and Canada Constituting An Arrangement Concerning Temporary Diversion for Power Purposes of Additional Waters of the Niagara River Above the Falls. Washington, 20 May 1941

Rio Grande

• Treaty to Resolve Pending Boundary Differences and Maintain the Rio Grande and Colorado River as the International Boundary between the United States of American and Mexico. Signed at Mexico, 23 November 1970. 23 U.S.T. 371, T.I.A.S. No. 7313 (PDF)
• Convention between the United States of America and Mexico: Boundary Solution of the Problem of the Chamizal. Signed at Mexico City 29 August 1963; in force 14 January 1964. T.I.A.S. No. 5515 (PDF)
• Treaty between the United States of America and Mexico relating to the utilization of the Waters of the Colorado and Tijuana Rivers and of the Rio Grande, signed at Washington 3 February 1944; protocol signed at Washington November 14,1944, Entered into force 8 November 1945, 59 Stat. 1219; Treaty Series No. 994 (PDF)
• Convention between the United States of America and Mexico: Rectification of the Rio Grande. Signed at Mexico City 1 February 1933. Treaty Series No. 864 (PDF)
• Convention between the United States and Mexico: Equitable Distribution of the Waters of the Rio Grande. Signed at Washington 21 May 1906; proclaimed 16 January 1907. Consolidated Treaty Series, vol 201 (1906); A.J.I.L., I, 281; U.S. stat., XXXIV, 2953; Mex. Tr. 1909, I, 318 (PDF)
• Convention between the United States and Mexico: Water Boundary - Extending the Duration of the Convention of 1 March 1889. Signed at Washington 2 December 1898; proclaimed on February 3, 1899. Treaty Series No. 241 (PDF)
• Convention between the United States of America and Mexico: Touching the International Boundary Line Where it Follows the Bed of the Rio Colorado. Concluded in Washington 12 november 1884; proclaimed 14 September 1886 (PDF)
• Minutes of the International Boundary & Water Commission of the United States and Mexico

Skagit River

• Treaty between Canada and the United States of America Relating to the Skagit River and Ross Lake, and the Seven Mile Reservoir on the Pend d'Oreille River (1984)

Souris River

• Exchange of Notes Constituting an Agreement Amending the Agreement between the Government of the United States of America and the Government of Canada for Water Supply and Flood Control in the Souris River Basin. Done in Washington14 January 2005 and 9 June 2005
• Exchange of Notes Constituting an Agreement Amending the Agreement between the Government of the United States of America and the Government of Canada for Water Supply and Flood Control in the Souris River Basin (with Annex). Done in Ottawa 20 December 2000 and 22 December 2000
• Canada-U.S.A. Agreement on the Souris River (1989)

Great Lakes

• Great Lakes-St. Lawrence River Basin Sustainable Water Resources Agreement, 2005 (English) (French)
• Supplementary Agreement Amending the Agreement Between The United States of America and Canada on Great Lakes Water Quality, 1978
• Great Lakes Water Quality Agreement, Canada & United States of America, 30 U.S.T.S. 1383, T.I.A.S. 9257, amended 1983, T.I.A.S. 10798 (1978)
• Agreement Relating to the Establishment of a Canada-United Sates Committee on Water Quality in the St. John River and its Tributary Rivers and Streams Which Cross the Canada-United States Boundary (Sept. 21, 1972, amended Feb. 2, 1972)
• Agreement Between the United States of America and Canada on Great Lakes Water Quality of 1972 with amendments by protocols in 1978, 1987, and 2012
• Exchange of Notes Constituting an Agreement Between the United States of America and Canada Modifying and Supplementing the Agreement of 30 June 1952 Relating to the St. Lawrence Seaway Project Signed at Ottawa 17 August 1954
• Exchange of Notes Constituting an Agreement Between the United States of America and Canada Relating to the Establishment of the St. Lawrence River Joint Board of Engineers . Signed at Washington 12 November 1953; in force 12 November 1953
• Exchange of Notes Constituting an Agreement Between the United States of America and Canada Relating to the St. Lawrence Seaway Project . Signed at Washington 30 June 1952; in force 30 June 1952
• Exchange of Notes Between the United States of America and Canada Constituting an Agreement Regarding the Development of Certain Portion of the Great Lakes – St. Lawrence Basin Project . Signed at Washington 14 and 31st October and 7th November 1940

Lake of the Woods

• Agreement Between the United States of America and Canada to Regulate the Level of Lake of the Woods, and Protocol. Signed at Washington, 24 February 1925; in force 17 July 1925

Rainy Lake

• Convention between the United States of America and Canada Providing for Emergency Regulation of the Level of Rainy Lake and of Other Boundary Waters in the Rainy Lake Watershed (1938)

• Minutes of the International Boundary & Water Commission of the United States and Mexico
• Treaty Between the United States and Great Britain Relating to Boundary Waters, and Questions Arising Between the United States and Canada, 1909, U.S.T.S. No. 548, 36 Stat. 2448

• Agreement on the Long-Lac and Ogoki Diversions (1940, Exchange of Notes)