Eric Kuhn General Manager, Colorado River Water Conservation District.

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Presentation transcript:

Eric Kuhn General Manager, Colorado River Water Conservation District

Congressional Briefing June 6, 2008 – Washington, DC Eric Kuhn, General Manager

Pieces of the Puzzle: the Colorado River Basin

= 10.0 maf/year OUTFLOW maf California maf Nevada maf losses maf Arizona maf Mexico Lake Powell OUTFLOW > INFLOW Lower Basin Lake Mead Upper Basin = 9.0 maf/year INFLOW maf Paria River maf tributary inflow maf from Lake Powell normal year operations releases from Lake Powell = 8.25 million acre-feet(maf) /year 7.5 maf for Lower Basin 0.75 maf for Mexico normal year operations releases from Lake Powell = 8.25 million acre-feet(maf) /year 7.5 maf for Lower Basin 0.75 maf for Mexico Colorado River Compact measuring point at Lee Ferry X

Challenges Climate change Hydrologic Variability (paleo record) Forest Changes Energy future

Projected Central Arizona Project (CAP) Shortages Source: USBR shortage criteria EIS direct paleo hydrology modeling

Three Policy objectives Avoid unacceptable outcomes Maintain constructive relationships Adapt to a wider range of hydrologic conditions Avoid unacceptable outcomes Maintain constructive relationships Adapt to a wider range of hydrologic conditions

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