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Investigation of Binational Desalination for the Benefit of Arizona and Sonora

December 5, 2008. AMC/CSA Meeting . Investigation of Binational Desalination for the Benefit of Arizona and Sonora. Guy W. Carpenter, P.E. Project Manager guy.carpenter@hdrinc.com 1-602-522-4337.

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Investigation of Binational Desalination for the Benefit of Arizona and Sonora

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  1. December 5, 2008 AMC/CSA Meeting Investigation of Binational Desalination for the Benefit of Arizona and Sonora Guy W. Carpenter, P.E. Project Manager guy.carpenter@hdrinc.com 1-602-522-4337

  2. To pursue water management planning in the Arizona-Sonora region that emphasizes collaboration on programs for the advancement of economic, social, and environmental benefits of both states, and that arise from constructive solutions to shared water supply issues. Promover la planeación para la gestión del agua en la región Sonora-Arizona, que de énfasis a la colaboración sobre programas que promuevan los beneficios económicos, sociales, y ambientales entre los dos estados, y que surgen de soluciones constructivas relacionado a los asuntos compartidos sobre recursos hidráulicos. Arizona-Mexico Commission/Comision Sonora ArizonaWater Committee Mission Statement/Principio Básico

  3. Salt River Project (SRP) 1.0 MAF (1,233 hm3/año) of annual Salt and Verde Rivers and groundwater water deliveries Central Arizona Project (CAP) 1.5 MAF (1,850 hm3 /año) of annual Colorado River water deliveries HDR 7,000 employees and 150+ offices Water, environmental, transportation Project Team

  4. Study Team Funding Partners Agency Partners Cooperating Partner

  5. Population growth Arid environment Fast growing Planning for future development Water Commonalities

  6. 2100 = 18.1 million people statewide 15.2 million in CAP Service Area 1920 = 344,000 people 2000 = 5.1 million people statewide 4.1 million in CAP Service Area Population Estimates and Projections 1900 to 2100 SOURCE: U.S. Census Bureau 1900 to 2000; Arizona Department of Economic Security 2010 to 2050 (April 2006 Projections); Global Institute of Sustainability 2060 to 2100 (June 2006)

  7. Source: INEGI and DES County Projections

  8. Fully allocated surface water Groundwater mining Future growth Access to the ocean 92% of water use is agriculture 5 MAF: 1.6M acres 6,167 hm3/año: 607,000 hectares 7% of water use is municipal and industrial (310,000 AFY: ~382 hm3/año) Fully allocated surface water Groundwater mining Future growth No access to ocean 68% of water use is agriculture 32% of water use is municipal and industrial Sonora Outlook Arizona Outlook

  9. The Idea • Arizona and Sonora need more water to sustain economic growth • Need data to support developing a new supply of water for Arizona and Sonora • Timing: near- and long-term • Project • Ocean desalination • Brackish groundwater desalination

  10. Not a New Idea • 1968: Nuclear power and water desalting plants for Southwest United States and Northwest Mexico • United States • Mexico • International Atomic Energy Agency • Project never advanced • Central Arizona Project authorized by Congress – although future supplies for augmentation still needed

  11. AMC/CSA Provides the Opportunity • Expanding trade • Increasing economic development • Improving quality of life • Advancing environmental benefits • Preparing region for prolonged droughts

  12. Project “Roadmap” • Background (Mexico Treaty, 1968 Study, etc.) • Description of study • Institutional framework (AZ, Sonora, U.S., and Mexico) • Water supplies (brackish groundwater and ocean) • Quantify water demands • Water production • Ocean (location, quality, technology, energy, costs) • Brackish GW (location, quality, technology, energy, costs)

  13. Project “Roadmap” - Continued • Pipeline/canal alignments • Energy needs • Evaluation of alternatives

  14. Both Studies Matter to Each Other • Success of Puerto Peñasco project planning and execution paves the way for future successes • Environmental, ocean, and policy impacts will influence future projects • Report findings should be consistent with one another • Working together to share information and ideas

  15. Scenario #1: 120,000 AFY

  16. Scenario #2: 1.2 MAFY

  17. Point of Reference • Ashkelon, Israel • 94,640 AFY, (117 hm3/año) • Capital cost • $250M (U.S.) • Production cost • $2.95/1000 gal ($0.78/m3) • Twice as big as largest previous plant • Globally, facilities will get bigger as water scarcity increases

  18. Description of Actions to Date • Met with Peñasco, toured site • Attended initial desalination meeting in CA • Bouchard and HDR sharing information • Scenarios agreed upon • Draft investigation report prepared

  19. Next Steps • Finalize the report • Discuss opportunities with Sonoran partners • Report back to AMC Spring 2009 • Future steps

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