1. INTERNATIONAL BOUNDARY AND WATER COMISSION COMISIÓN INTERNACIONAL DE LÍMITES Y AGUAS Colorado River Joint Cooperative Proces Presentation to Urban Water Institute August 23, 2012 Edward Drusina U.S. Commissioner International Boundary and Water Commission

2. IBWC History  1848 Guadalupe Hidalgo Treaty – Mexican American War Ends  1853 Gadsden Purchase  1889 Convention – IBC Becomes Permanent Agency of USFG  1906 Treaty – Rio Grande Allocations  1944 Treaty – Renames the IBC to the IBWC Colorado River, Rio Grande & Tijuana River

3. U.S.-MEXICO JOINT DECLARATIONS  August 2007 ► Joint Declaration of U.S. and Mexico to Discuss Joint Cooperative Actions Related to the Colorado River, signed by DOI Secretary Kempthorne and Mexican Ambassador Sarukhan  January 2009 ► Joint Declaration of DOI Secretary Salazar and Mexican Ambassador Sarukhan  December 2010 ► DOI Secretary Salazar and SEMARNAT Secretary Elvira continue dialogues on drought conditions in the Colorado River, with meetings in Mexico City Bridge over dry Colorado River near SIB Water in Colorado River Limitrophe reach

4. LEADERSHIP TEAM   Formed in February 2011   Participation from the IBWC and Reclamation Commissioners, Principal Engineers, BOR Regional Directors   2012 Established Seven Basin States & ConAgua join direct discussions Feb. 23 Leadership Meeting in El Paso, Texas

5. LEADERSHIP TEAM   Reviewed structure for the Joint Cooperative Process   Reviewed and prioritized issues and projects   2011 process effective Key and Fundamental Issues Clarified   2012 US & MX Water Stakeholders at the table   Current Project Focus – Incorporate Key and Fundamental Issues

6. KEY FUNDAMENTAL ISSUES   Salinity   Shortage Management   Surplus Sharing   Intentionally Created Mexican Allocation (ICMA)   Exchange of Water   Water for the Environment

7. SALINITY   Need to address salinity impacts of potential projects   Technical analysis/modeling has been undertaken   Legal and policy issues are being considered Colorado River at NIB

8. SHORTAGE MANAGEMENT   Determined the conditions and means by which shortage would be addressed as part of a comprehensive framework of cooperative actions   Considered drought indicators, parameters not controlled by humans, rainfall, runoff, reservoir elevations, etc. Lake Mead “bathtub ring” at Hoover Dam

9. SURPLUS SHARING   Determine the conditions and means by which this issue would be addressed   Surplus is being considered as part of the JCP. High flow at SIB following April 2011 rainfall

10. I C M A   Intentionally Created Mexican Allocation (ICMA) – similar to Intentionally Created Surplus in the United States   Could give Mexico greater flexibility in how it manages its Colorado River allotment   Minute 318 Earthquake Relief Results:   2011 - 50,336 AF, 2012 - 132,228 AF(est.), 2013 – 77,435 AF(est.)   Benefits Lake Mead levels

11. EXCHANGE OF WATER   Minute 318 Water could serve as an investment in the regions future.   As we develop projects such as for conservation or new water sources, are there ways to exchange water rather than physically move it great distances? Morelos Dam diverts Colorado River water into Mexico’s irrigation canal

12. WATER FOR THE ENVIRONMENT   Identify a framework that identifies how water for the environment could be used when it becomes available, taking into consideration the sources of water and legal restrictions   Requires significant technical, legal, and policy analysis Dry riverbed at SIB, Wellton-Mohawk Drain on left.

13. INTERNATIONAL BOUNDARY AND WATER COMISSION COMISIÓN INTERNACIONAL DE LÍMITES Y AGUAS USIBWC HEADQUARTERS El Paso, TX 915-832-4100 www.ibwc.gov