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AWBA Water Supply and Demand Study

This study compares water supply and demand scenarios based on 1997 base vs. 2012 reservoir elevation, including Indian Firming projections through 2108. It examines shortage sharing proposals and presents data on shortage determination, triggers, distribution, and general assumptions. The director's recommendation for shortage sharing is analyzed using various scenarios to evaluate first shortage year, number of shortages, and remaining credits.

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AWBA Water Supply and Demand Study

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  1. AWBA Water Supply and Demand Study October 4, 2011 AWBA Meeting

  2. Comparison 1997 Base to Base 1997 Base Base 2012 Reservoir Elevation 23,724 AF Indian Firming Indian Firming Thru 2108 Shortage Sharing Proposal Stepped Shortage Determination • 1997 Reservoir Elevations • 15,000 AF Indian Firming • Indian Firming thru 2097 • Pro Rata CAP/On-River • Probability Base Shortage Determination

  3. First Shortage YearBase vs. 1997 Base

  4. Shortage VolumeBase vs. 1997 Base

  5. Number of ShortagesBase vs. 1997 Base

  6. Credits RemainingBase vs. 1997 Base

  7. General Assumptions • Starting Reservoir Elevation Jan. 2012 • Shortage Triggers • CAP Shortage Distribution • No Yuma Desalter • M&I Firming thru 2097 • Indian Firming thru 2108 • Indian Firming 23,724 AF

  8. Base vs. Scenarios Base Scenarios Director’s Shortage Sharing Recommendation • On-River/CAP shortage distribution pro rata based on demand

  9. Scenarios

  10. Shortage VolumeBase, Scenario A and Scenario C

  11. First Shortage YearBase, Scenario A and Scenario C

  12. Number of ShortagesBase, Scenario A and Scenario C

  13. Credits RemainingBase, Scenario A and Scenario C

  14. Shortage VolumeMedian Traces

  15. First Shortage YearMedian Traces

  16. Number of ShortagesMedian Trace

  17. Credits RemainingBase, Scenario A and Scenario C

  18. Discussion

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