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A Perspective on Today’s Colorado River Issues

A Perspective on Today’s Colorado River Issues. Upper Colorado Region River Basins. Green, Colorado and San Juan Rivers. Colorado River Basin Hydrology 16.5 million acre-feet (maf) allocated annually 13 to 14.5 maf of consumptive use annually 60 maf of storage

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A Perspective on Today’s Colorado River Issues

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  1. A Perspective on Today’s Colorado River Issues

  2. Upper Colorado Region River Basins

  3. Green, Colorado and San Juan Rivers

  4. Colorado River Basin Hydrology • 16.5 million acre-feet (maf) allocated annually • 13 to 14.5 maf of consumptive use annually • 60 maf of storage • 15.1 maf average annual “natural” inflow into Lake Powell over past 100 years • Inflows are highly variable year-to-year

  5. Natural FlowColorado River at Lees Ferry Gaging Station, ArizonaWater Year 1906 to 2009

  6. Colorado River Basin Storage(as of July 20, 2010)

  7. State of the System (1999-2010) • Inflow based on latest CBRFC forecast; storage and percent capacity based on April 2010 24-Month Study

  8. Colorado River Water Supply & Use

  9. Shortage Criteria & Coordinated Operating Criteria for L. Powell & L. Mead ROD signed in Dec. 2007 • Multiple entities involved in EIS process • Tremendous assistance from stakeholders • Criteria in place till 2026

  10. Glen Canyon Adaptive Management Program • State-of-the-art process • Diverse stakeholder groups • Independent review panels • Recommendations to the Secretary

  11. Glen Canyon High Flow Test

  12. We’ve begun a process to create High Flow Protocols

  13. Colorado River Basin Salinity Control Program Salinity damage totals nearly $330 million per year in U.S. Projects prevent more than 550,000 tons of salt from entering Colorado River each year

  14. Colorado River Endangered Fish Species Bonytail (Gila elegans) Colorado Pikeminnow (Ptycheilus lucius) Razorback Sucker (Xyrauchen texanus) Humpback Chub (Gila cypha)

  15. Endangered Fish Recovery Programs Programs in the Upper Colorado River and San Juan River Enables water development to proceed in compliance with ESA

  16. Questions/Discussion

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