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Aspinall Unit Reservoir Operations: Meeting Operational Considerations and Goals

This document outlines key operational considerations for the Aspinall Unit, covering water storage, power production, flood control, and downstream flow requirements. It includes target elevations, meeting flow targets, baseflow targets, and operational goals for 2015. Details on forecasted runoff volumes, peak flows, and operational milestones are highlighted.

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Aspinall Unit Reservoir Operations: Meeting Operational Considerations and Goals

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  1. Aspinall Unit Reservoir Operations 2015

  2. Operational Considerations • Aspinall Unit Purposes • Water storage / Compact Development • Power Production • Flood Control • Downstream Flow Requirements - including Senior Water Rights, timing side-inflows • Target Elevations • Meeting the ROD flow targets at Whitewater • Others - Including Recreation and Safety

  3. 2015 May 1st ForecastedRunoff Volume (440,000 Acre-Feet, 83% exceedance)

  4. 73% of seasonal peak

  5. 2015

  6. May 1 Forecast 440 KAF 2054 cfs June 23 - 24 Hr Peak 7180 cfs May 9 - 24 Hr Peak 2120 cfs

  7. 5,300cfs May 7

  8. 2015 BaseflowTargets

  9. 2015 Spring Operational Goals • Black Canyon Water Right • One Day Peak Target 2,054cfs • ROD Peak Flow at Whitewater • 4991cfs(Instantaneous) • <14,000 cfs at Delta, CO • Safe Ramping Rates • Fill Blue Mesa

  10. Whitewater flowwas meet starting on May 7th Black Canyon Water Right was meet starting on May9th

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