1 December 19, 2007 North-of-the-Delta Offstream Storage Project Overview State of California...
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Transcript of 1 December 19, 2007 North-of-the-Delta Offstream Storage Project Overview State of California...
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December 19, 2007December 19, 2007
North-of-the-Delta Offstream Storage
Project Overview
North-of-the-Delta Offstream Storage
Project Overview
State of CaliforniaDepartment of Water Resources
U.S. Department of the InteriorBureau of Reclamation
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Feasibility Study PhasesFeasibility Study Phases
Initial Alternatives Initial Alternatives
Plan Formulation Plan Formulation
Feasibility StudyFeasibility Study
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Feasibility Study Phase Feasibility Study Phase
Refine and compare alternatives Refine operations Complete feasibility-level design and cost estimates Evaluate environmental effects Perform benefit/cost analysis
Prepare feasibility report and environmental documents (EIS/EIR)
Refine and compare alternatives Refine operations Complete feasibility-level design and cost estimates Evaluate environmental effects Perform benefit/cost analysis
Prepare feasibility report and environmental documents (EIS/EIR)
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Planning ObjectivesPlanning Objectives Primary Objectives:
• Increase water supply and water supply reliability and Sacramento Valley water management flexibility
• Improve Delta water quality• Increase the survival of anadromous fish populations in
the Sacramento River, as well as the health and survivability of other aquatic species
Secondary Objectives:• Provide ancillary hydropower generation • Provide additional recreational opportunities• Provide incremental flood damage reduction benefits
Primary Objectives:• Increase water supply and water supply reliability and
Sacramento Valley water management flexibility• Improve Delta water quality• Increase the survival of anadromous fish populations in
the Sacramento River, as well as the health and survivability of other aquatic species
Secondary Objectives:• Provide ancillary hydropower generation • Provide additional recreational opportunities• Provide incremental flood damage reduction benefits
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See detail map
New Pipeline
FacilitiesFacilities
Sites Reservoir Storage Capacity: 1,800 TAF
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Potential Benefits Potential Benefits Support ecosystem restoration Increase water supply and water supply reliability
for:• Urban• Agricultural• Environmental
Improve Delta water quality Improve system flexibility Provide ancillary hydropower generation Improve flood protection Increase recreational opportunities Provide for Delta emergency response
Support ecosystem restoration Increase water supply and water supply reliability
for:• Urban• Agricultural• Environmental
Improve Delta water quality Improve system flexibility Provide ancillary hydropower generation Improve flood protection Increase recreational opportunities Provide for Delta emergency response
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Improve System Flexibility Improve System Flexibility Sites can provide much needed flexibility to the state’s
constrained water management system
Sites can be operated to contribute to the long-term sustainability of the Delta ecosystem, maintain water quality and supply reliability, and mitigate the effects of Delta levee failure
Restoration Action storage could be adaptively managed to support restoration actions in the Sacramento River and the Delta
Added flexibility from Sites can also improve the viability and effectiveness of conjunctive management, water exchanges and transfers
Sites can provide much needed flexibility to the state’s constrained water management system
Sites can be operated to contribute to the long-term sustainability of the Delta ecosystem, maintain water quality and supply reliability, and mitigate the effects of Delta levee failure
Restoration Action storage could be adaptively managed to support restoration actions in the Sacramento River and the Delta
Added flexibility from Sites can also improve the viability and effectiveness of conjunctive management, water exchanges and transfers
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ShastaShasta
SitesSitesOrovilleOroville
FolsomFolsom
●Provide Stable Flows – Keswick to Colusa
●Increase Cold Water Pool in Shasta Lake
●Improve Fish Passage at RBDD
●Reduce Diversions at TC and GCID Canals
●Provide Supplemental Flows for Cottonwood Establishment
●Provide Stable Flows – Keswick to Colusa
●Increase Cold Water Pool in Shasta Lake
●Improve Fish Passage at RBDD
●Reduce Diversions at TC and GCID Canals
●Provide Supplemental Flows for Cottonwood Establishment
Ecosystem Restoration ActionsEcosystem Restoration Actions
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Planning SchedulePlanning Schedule
2005 2006 2007 2008 2009
Initial Alternatives Information Report
Plan Formulation Report
Final Feasibility Report & EIS/EIR
DefineInitial
AlternativesDevelop & Evaluate
Alternatives
Draft Feasibility Report & EIS/EIR
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Sacramento RiverDaily Operations Model
(DOM)
Sacramento RiverDaily Operations Model
(DOM)
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Sacramento River DOMSacramento River DOMWill provide the foundational daily flow dataset for a
number of recently developed models:Reclamation’s Sacramento River Water Quality
ModelTNC Sacramento River Ecological Flows Tool Reclamation’s Models on Physical River Processes
and Riparian Habitat on the Sacramento River DWR (NODOS) Winter-Run and Spring-Run Life
Cycle IOS Models
Will provide the foundational daily flow dataset for a number of recently developed models:
Reclamation’s Sacramento River Water Quality Model
TNC Sacramento River Ecological Flows Tool Reclamation’s Models on Physical River Processes
and Riparian Habitat on the Sacramento River DWR (NODOS) Winter-Run and Spring-Run Life
Cycle IOS Models
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Sacramento River DOM StatusSacramento River DOM Status
Reservoir operations calibrated based on historical flood and uncontrolled release operations of 1995 – 2003
QA / Agency review and CALSIM II interface need to be completed to support scenario (i.e. project or program) analyses
Methodology has been applied to develop a “hindcast” of the daily flows for 1964 – 2003
Reservoir operations calibrated based on historical flood and uncontrolled release operations of 1995 – 2003
QA / Agency review and CALSIM II interface need to be completed to support scenario (i.e. project or program) analyses
Methodology has been applied to develop a “hindcast” of the daily flows for 1964 – 2003
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DOM HindcastDOM Hindcast
Useful for calibration and verification of models (specifically model efforts that require daily flows from Keswick Dam to Knights Landing)
Some concerns remain about the routing and operations between Ord Ferry and Knights Landing due to sparseness in observations
Does not provide scenario testing capability, but will inform the DOM development as it is integrated with the CALSIM II model
Useful for calibration and verification of models (specifically model efforts that require daily flows from Keswick Dam to Knights Landing)
Some concerns remain about the routing and operations between Ord Ferry and Knights Landing due to sparseness in observations
Does not provide scenario testing capability, but will inform the DOM development as it is integrated with the CALSIM II model