Bi-national Desalination to Benefit Arizona and Sonora

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Bi-national Desalination to Benefit Arizona and
Sonora
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Study Team
Cooperating Partner
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Arizona-Mexico Commission Comision Sonora
Arizona Water Committee Mission
Statement Principio Básico

• 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.

• 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.

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Puerto Peñasco Project

• Immediate need for water to meet current and
  future demands
• USTDA-funded desalination study
• Preliminary design
• Feasibility analysis
• Success of Puerto Peñasco project will facilitate
  bi-national projects

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GeographicRegion

• Issues
• Delivery to Arizona
• Delivery in Sonora
• Power Supplies
• Legal Agreements
• Funding
• Cost-sharing
• Biosphere Reserves

Yuma
Puerto Penasco
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Scope of Work

• Pre-feasibility cost estimates for two seawater
  desalination alternatives
• Sonora-Arizona project
• 120,000 AF/year (0.4 Mm3/day)
• Mexico-U.S. regional project
• 1,200,000 AF/year (4 Mm3/day)

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Major Assumptions

• Land/ROW
• Energy
• Transmission/Generation
• Water Supply Volume
• Debt Service
• Operations/Materials

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Conceptual Layout for Cost Opinion
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Possible Conveyance Route
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Project Location Map
168 miles
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Preliminary Cost Estimates

• Local Project (120KAF/yr 0.4 Mm3/day)
• Treatment 0.57 billion
• Transportation 1.8 billion
• Total (approximate) 2700/AF or 8.40/1,000 gal
• Regional Project (1.2MAF/yr 4 Mm3/day)
• Treatment 4.4 billion
• Transportation 2.9 billion
• Total (approximate) 1200/AF or 3.65/1,000 gal

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Uncertainties

• Water Demand
• Environmental Constraints
• Alternative Conveyance Routes
• Energy
• Community Preferences
• Regulatory Requirements
• Risk Assessment

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Next Steps

• Share Report findings
• Engage Others
• Report back to AMC Summer, 2010