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SUSTAINABLE WATER MANAGEMENT Project Overview

SUSTAINABLE WATER MANAGEMENT Project Overview. Brad Moore September 2 012.

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SUSTAINABLE WATER MANAGEMENT Project Overview

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  1. SUSTAINABLE WATER MANAGEMENT Project Overview Brad Moore September 2012

  2. ACFS’s mission is to achieve equitable water-sharing solutions among stakeholders that balance economic, ecological and social values, while ensuring sustainability for current and future generations. 

  3. Consensus is critical. ACFS members seek to understand one another’s interests as they work together, but accept that their interests will differ. Consensus ensures no stakeholder interest is left out.

  4. PROJECT HISTORY 2011 consensus on science based approach Developed specifications and executed RFQ Process Initiated fundraising campaign Chose contractors and started fall 2011

  5. Project Team TOCWG facilitators Kristin Rowles Gail Bingham

  6. WORK PLAN TASKS • Performance Metrics • IFA – rivers and bay • Data Gathering • Modeling • WMA’s • Model Runs • Consensus

  7. Overall Plan Tasks OVERALL SUSTAINABLE WATER MANAGEMENT PLAN TASKS 1. Work Plan 2. Problem Definition/Performance Indicators 3. Tailoring of Models to Indicators (ACF-DSS and ResSim) 4. Data and Information 5. Development of Water Management Alternatives 6. Conduct Iterative Basin Assessments 7. Seek Consensus 8. Report and Study Dissemination NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB

  8. Modeling Modeling to be performed by GWRI ACF-DSS will be used Additionally, scenarios will be performed using both ResSim and ACF-DSS.

  9. Model inputs Nodes Storage (volume and stage/storage) Unimpaired inflows Water withdrawals Water returns Evaporation history Precipitation history Hydropower facilities Operational constraints

  10. PERFORMANCE METRICS • Desired lake levels • Navigation windows • Environmental flows • Flows needed for industry or thermal power • Reservoir operations 12

  11. PERFORMANCE METRICS SUMMARY TABLE

  12. Unimpaired flows Unimpaired inflow (UIF) series represent the natural inflows that would occur if no human development were present 14

  13. A workshop focused on the UIF data series to be held on September 10th

  14. Water Balance • Water Withdrawals – Tabulation of existing, proposed, and growth based (future) water users in the basin; includes municipal, industrial, agricultural, and thermoelectric users • Water Returns – Tabulation of existing and future returns from municipal and industrial NPDES permit holders Withdrawals Returns Net Consumption = SWithdrawals - SReturns

  15. Components of an Environmental Flow Recommendation • Goal – prevent unacceptable environmental impacts • Identification of resources of interest to be protected • Unit of measure (e.g., flow in cfs, habitat in useable area, days of inundation, salinity) METRIC • A benchmark period (UNIMPAIRED FLOW), and • A protection standard statistic PERFORMANCE MEASURE

  16. Basic Principles and Ecological Consequences of Altered Flow Regimes for Aquatic Biodiversity • Principle 1: Flow is a major determinant of physical habitat in streams, which in turn is a major determinant of biotic composition. • Principle 2: Aquatic species have evolved life history strategies primarily in direct response to the natural flow regime. • Principle 3: Maintenance of natural patterns of longitudinal and lateral connectivity is essential to the viability of populations of many riverine species.

  17. Habitat-Based Approach

  18. Regulated Flow Regime

  19. Fish Passage

  20. Long-Term Inundation Analysis Floodplain Exposed Roots Snags e.g., Potential criterion – X% reduction in flow reduces the number of days of inundation of exposed root habitat by X%

  21. Hydrodynamic Model Output For Bay Low Flow High Flow

  22. Water Management Alternatives PROCESS Soliciting a panel of experts to review to receive briefing. Stakeholder meetings to develop WMAs Screening process of WMAs during iterative model runs.

  23. Water management alternatives Each stakeholder gets input

  24. Water management alternative Examples Potential changes to RIOP Interbasin transfers Municipal conservation Additional storage Agricultural conservation/limits

  25. Modeling scenario progression Unimpaired Baseline - no dams Baseline with dams and run of river RIOP operation of reservoirs AND current water demands and discharges Alternative WMA Scenarios (iterative)

  26. Where are we now? OVERALL SUSTAINABLE WATER MANAGEMENT PLAN TASKS 1. Work Plan 2. Problem Definition/Performance Indicators 3. Tailoring of Models to Indicators (ACF-DSS and ResSim) 4. Data and Information 5. Development of Water Management Alternatives 6. Conduct Iterative Basin Assessments 7. Seek Consensus 8. Report and Study Dissemination NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FEB

  27. Report and Study dissemination ACFS will carry recommendations to states and usace 29

  28. ANY QUESTIONS ?

  29. Project Overview

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