INTERNATIONAL BOUNDARY AND WATER COMMISSION, UNITED STATES AND MEXICO

Transcription

1 INTERNATIONAL BOUNDARY AND WATER COMMISSION, UNITED STATES AND MEXICO

2 CHARACTERISTICS OF THE U.S.-MEXICO BORDER Land Boundary 674 miles Colorado River 24 miles Rio Grande 1,254 miles Over 12 million residents

3 INTERNATIONAL RIVER BASINS Tijuana River Basin Colorado River Basin Rio Grande Basin Pacific Ocean Gulf of Mexico

4 MISSION OF THE COMMISSION The International Boundary and Water Commission is responsible for applying the boundary and water treaties between the United States and Mexico and settling differences that arise in their application.

5 IBWC STRUCTURE INTERNATIONAL BOUNDARY AND WATER COMMISSION (IBWC) MEXICAN SECTION Mexican Commissioner Secretary Two Principal Engineers Legal Adviser US SECTION US Commissioner Secretary Two Principal Engineers Legal Adviser

6 IBWC STRUCTURE Each Commissioner is appointed by his respective president When the two Sections meet as a Commission, they have the status of an International Organization Each Section employs its own staff IBWC staff operate projects, including joint operation of dams

7 IBWC STRUCTURE Decisions of the Commission shall be recorded in the form of Minutes Minutes are subject to approval by the Governments (State, SRE) and are binding 130 Minutes entered into since treaty ratification

8 IBWC STRUCTURE Joint Reports or Joint Memoranda of the Principal Engineers include technical recommendations to the Commissioners Commissioners, Principal Engineers, Secretaries, and Legal Advisers are diplomatic officers Significant day-to-day contact between the two Sections

9 CONVENTION OF 1906 Distribution between Mexico and the U.S. of the waters of the Rio Grande in the El Paso-Juarez region U.S. to deliver 60,000 acre-feet per year Proportional reduction in deliveries in case of extraordinary drought Water stored in Elephant Butte Dam, NM

10 American Dam (El Paso-Juarez)

11 OTHER BOUNDARY TREATIES Convention of 1933/Rio Grande Rectification Project Stabilize the international boundary in the El Paso-Juarez Valley Chamizal Convention (1963) Relocate the Rio Grande in a new channel in El Paso- Juarez Treaty of 1970 Maintain the Rio Grande and Colorado River as the international boundary

12 PROYECTO RIO GRANDE RECTIFICATION DE RECTIFICACION PROJECT IN EN THE EL PASO-JUAREZ VALLE DE JUAREZ VALLEY PROYECTO RIVER DE BED RECTIFICACION AND RECTIFIED CHANNEL EN CHAMIZAL

13 1944 WATER TREATY Colorado River U.S. to deliver to Mexico a volume of 1.5 million acre-feet per year When there are surplus waters, U.S. to deliver to Mexico a total volume of up to 1.7 million acre-feet per year

14 M O R E L O S D A M

15 1944 WATER TREATY (Rio Grande, Ft. Quitman to the Gulf) Waters allotted to Mexico All water from the following Mexican rivers: San Juan and Alamo 2/3 of the flow arriving in the Rio Grande from the following Mexican tributaries: Conchos, San Diego, San Rodrigo, Escondido, Salado, Arroyo de las Vacas 50% of flows from the unmeasured tributaries

16 1944 WATER TREATY (Rio Grande, Ft. Quitman to the Gulf) Waters allotted to the United States All water from the following U.S. rivers/creeks: Pecos, Devils, Good-enough Spring, Alamito, Terlingua, San Felipe, Pinto 1/3 of the flow arriving in the Rio Grande from the following Mexican tributaries: Conchos, San Diego, San Rodrigo, Escondido, Salado, Arroyo de las Vacas Minimum annual average of 350,000 acre-feet 50% of flows from the unmeasured tributaries

17 EVOLUTION OF THE DEFICT IN THE ALLOTMENTS OF WATER TO THE UNITED STATES FROM THE RIO GRANDE, IN Mm³ 2,000 1,600 1, NOTA: ,263 1,546 1,774 1,587 1,431 1,639 1, * 60 ** CICLO 25 CICLO 26 CICLO 27 *Conforme al Acuerdo del 10-Marzo-05 entre ambos Gobiernos, el 27-Sept-05 México cubrió el volumen faltante de 884 Mm³ y por lo tanto quedan cerrados los ciclos 25 y 26. ** está actualizado hasta el 21 de enero de Mexico faced an unprecedented deficit in deliveries from the Rio Grande. In response, a series of agreements were necessary to be able to use available volumes in the basin. These agreements were undertaken from 2002 to 2005, which permitted the total elimination of the deficit.

18 I B W C O F F I C E S O N T H E B O R D E R

19 International Boundaries Surface Waters Bridges and Border Crossings IBWC AREAS OF JURISDICTION Groundwater Border Sanitation

20 2. CURRENT PROJECTS

21 AMISTAD DAM International Storage Reservoir Total Capacity 4.9 million acre-feet (6025 million cubic meters) Silt and Conservation 3.15 million acre-feet (3887 million cubic meters) Flood Control Recreation Hydroelectric Power

22 AMISTAD DAM

23 FALCON DAM International Storage Reservoir Total Capacity 3.16 million acre-feet (maf) (3897 million cubic meters) Silt and conservation 2.65 maf (3273 million cubic meters) Flood Control Hydroelectric Power

24 U.S. Hydroelectric Plant

25 LOWER RIO GRANDE FLOOD CONTROL PROJECT 340 miles of levee Anzalduas Diversion Dam Retamal Diversion Dam Floodways Flood protection for hundreds of thousands of people in the U.S. and Mexico

26 Anzalduas PRESA DERIVADORA Diversion ANZALDUAS Dam 1966 Flood at Brownsville-Matamoros

27 SANITATION PROJECTS 3 international wastewater treatment plants San Diego, CA Nogales, AZ Nuevo Laredo, Tamaulipas

28 SOUTH BAY INTERNATIONAL WASTEWATER TREATMENT PLANT

29 WATER QUALITY MONITORING 3 Rio Grande binational toxic substances studies Binational toxic substances study of the New and Colorado Rivers Intensive water quality monitoring study of the Rio Grande at Laredo-Nuevo Laredo

30 COLORADO RIVER SALINITY CONTROL Minute 242 (1973) regulates the salinity of water delivered to Mexico Wellton Mohawk Canal bypasses saline flows to the Santa Clara Slough in Mexico Desalination plant in the U.S. can be made operational when needed

31 WATER ACCOUNTING More than 50 gaging stations in the Rio Grande basin in the United States and Mexico 11 gaging stations on the Colorado River Data reviewed weekly by the U.S. and Mexican Sections Determination of the national ownership of waters of the Rio Grande Publication of flow data, rainfall, reservoir storage, evaporation, and water quality data in annual water bulletins

32 WATER ACCOUNTING Telemetry system at North Floodway, Lower Rio Grande Rio Grande gaging station at Presidio-Ojinaga

33 INTERNATIONAL BOUNDARY AND WATER COMMISSION, UNITED STATES AND MEXICO Mexican Section U.S. Section (656) (915)