case study for the cwc case study... · purpose nodos as a case study in public and non-public...
TRANSCRIPT
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Case Study for the CWC
July 17 , 2013
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Purpose
NODOS as a case study in public and non-public benefits
Outline – Background – Measuring Benefits – Allocation of Costs – Financing
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Caveats:
• Preliminary • Subject to revision
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Proposed Water Bond - Requirements
Non Public
Ecosystem
Emergency Response
Recreation
Water Quality
Flood
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NODOS Objectives
Primary Objectives and
Secondary Objectives M&I and Environmental Water Quality
Emergency Response
Recreation
Flexible Generation
Water Supply
Ecosystem
Flood Protection
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NODOS Alternatives Components
• Location • Conveyance • Size • Operations
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NODOS Reservoir Location Alternatives
• Red Bank Reservoir • Newville Reservoir • Colusa Reservoir • Sites Reservoir
Red Bank Project (Dipping Vat Reservoir
and Schoenfield Reservoir)
Newville Reservoir
Colusa Reservoir
Sites Reservoir
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Proposed Sites Reservoir Elements
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Benefits
How Methods Where
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How: Proposed Reservoir Operations Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Fill Reservoir
Drain Reservoir
SWP
Wildlife Refuges
CVP
Augment Delta Water Quality
Hydropower
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How: Integrated Operations Shasta
Sites Oroville
Folsom
Trinity
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Methods: System-Wide Benefits
Hydrology & System Operations
CALSIM II, USRDOM
Water supply impacts, river flows, exports, storage
Salinity (EC, Cl, TDS, Br) and fingerprinting (EC, volume)
Delta Hydrodynamics DSM2-HYDRO
Delta Water Quality DSM2-QUAL
Reservoir/River Temp USRWQM,
Reclamation Temperature
Power LTGEN, PLEXOS
SWP Power, NODOS Power
Economics SWAP,
LCPSIM/SUPEM, LCRBWQM/SBWQM
Delta channel flows, stages, velocities
Reservoir, River temperatures
Fisheries Reclamation
Mortality, SALMOD, WRCLCM (IOS)
Quantification of Economic Benefits
Net Generation, Daily Pump-Back and Benefits
Survival, Potential Production, Population
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Methods: Local Benefits
SRH-SIAM
Sediment Loads
SRH-Meander
Point Bar Growth
SRH-2D Local Velocity, Scour, & Stage
SRH-1DV Riparian Vegetation
Survival
RHEM Riparian
Vegetation Growth
Fluvial Geomorphology and Riparian Habitat
Surface Water Quality
USRWQM Daily Sacramento River
Temperature
Other Quantitative and Qualitative
Analyses
CAL2DOM CALSIM II
Monthly storage, flow &
diversion operations
USRDOM Daily storage, Sac River and tributary flow and
diversion operations
Surface Water Resources
Aquatic Biological Resources
WRCLCM (IOS/DPM Model)
Sacramento River Winter Chinook
SALMOD Sacramento River
Fall, Late-Fall, Winter & Spring Chinook
SAC-EFT Sacramento River Chinook salmon, steelhead, green
sturgeon, bank swallow, western pond turtle
Other Quantitative and Qualitative
Analyses
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Recreation
• Two potential recreation sites • Potentially improves lake
levels at existing reservoirs
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Recreation
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Flood Protection
Flood damage reduction in project vicinity (up to 8,600 acres)
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Potential Contribution to Hydropower Generation
• Potentially generates up to 125 MW of new hydropower through pump-back facilities
• Could be quickly ramped up or down to complement other renewable energy sources
PHOTO: DWR. CASTAIC
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Water Benefits Summary
Ecosystem Enhancement
Water Quality
Water Supply
Yiel
d En
hanc
emen
t, TA
F
Long-Term Average Dry/Critical Years Average
700
600
500
400
300
200
100
0
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Water Supply
Municipal & Industrial
Agricultural
Wildlife Refuges
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System Flexibility and Emergency Response
Additional Water in System Storage
Sites Shasta Oroville
Addi
tiona
l Wat
er in
Sys
tem
Sto
rage
(TAF
)
Average Driest Period
1600
1400
1200
1000
800
600
400
200
0
Trinity Folsom
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Water Quality
Municipal & Industrial
Agricultural
Environmental – X2
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Ecosystem
Coldwater pool
In-stream flows
X2
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$151.9
$19.7
$45.4
$0.7 $2.2 $0.0
100-Year Period of Analysis
Water Supply Water Quality Ecosystem Enhancement Hydropower (Net Revenue) Recreation Flood Damage Reduction
Values in $millions
Estimated Federal Annual Benefits
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Preliminary Benefit Cost Ratio
($M)
Proposed Project Costs $3,384
Interest During Construction $972
Annual Costs:
Interest/Amortization $176
Operations & Maintenance $14
Total Annual Costs $190
Total Annual Benefits
$231
Net Annual Benefits $41
Benefit Cost Ratio 1.2 Preliminary – Subject to Change
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Cost Allocation
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Preliminary Proposed Project Costs
Dams
Outlet Works
Pump/Gen Plants
Conveyance
Roads Misc
Total: $3.4 Billion
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$2,041.3 $374.6
$864.4
$86.9 $41.9 $0.05
Water Supply Water Quality Ecosystem Enhancement Hydropower (Net Revenue) Recreation Flood Damage Reduction
Values in $millions
Preliminary Total Cost Allocation Summary
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Public and Non-Public Share
Benefit Type Percentage Allocation
Public Allocation Non-Public Allocation
Water Supply 53.4% 53.4%
Water Quality 11.0% 11.0%
Ecosystem 31.9% 31.9%
Hydropower 2.5% 2.5%
Recreation 1.2% 1.2%
Flood Reduction 0.0% 0.0%
TOTAL 44.1% 55.9%
Note: Ecosystem is 72.3% of Public Benefits
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Finance
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Potential Funding Partners
State Water Bond Federal CVP
Contractors SWP
Contractors Power Utility
Water Supply M&I SWP
Ag CVP Ag SWP
Water Quality M&I SWP
Ag CVP Ag SWP
Ecosystem Recreation Power Flood
Emergency Storage
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Estimated Construction Cost Assignment by Cost Share Partner
$-
$500.0
$1,000.0
$1,500.0
$2,000.0
$2,500.0
$3,000.0
$3,500.0
$4,000.0
Scenario 1 Scenario 2 Scenario 3
Utility Providers Water Bond Water Contractors/Users Federal
Values in $millions
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Purpose
Sites Joint Powers Authority
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Sites Joint Powers Authority (JPA)
• Authorized under Section Water Code 79749(a). – The purpose of JPA is to establish a public entity to
design, acquire, manage and operate Sites Reservoir and related facilities to improve the operation of the state's water system and provide improvements in ecosystem and water quality conditions the Sacramento River system and in the Bay-Delta as well as provide flood control and other benefits for the State of California.
• Senate (Feinstein) also proposing similar language in current Appropriations Bill
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JPA Members
• Glenn County • Colusa County • Glenn-Colusa Irrigation District • Tehama Colusa Canal Authority • Reclamation District 108 • Maxwell Irrigation District • Yolo County Flood Control and Water Conservation
District • DWR – no voting member
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2013 Actions and Engagement
• Conduct Public Outreach and Information • Address Affordability & Funding Options • Identify Beneficiaries and Cost/Benefit Evaluation • Project Construction Cost Evaluation
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Conduct Public Outreach and Information
• Cooperating with DWR and Center for Collaborative Policy
• Focused Outreach to Stakeholders – Landowners - Project Footprint – Counties – Road relocation, bridge, Recreation Areas – Sac Valley Region – Districts, Counties, IWRMP’s – NGO’s – aquatic and terrestrial goals
• JPA not limited by state/federal pre-decisional concerns
• Outreach could true-up EIR/EIS to improve formal public review process and comments
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Address Affordability
• Financial Feasibility vs. Affordability • Economics (benefits to costs) vs. Repayment (is there a
customer base) • Pooled Benefits and Repayment or value discounting? • How will the public share be funded?
– Water Bond, capital or annual payments? – Valuing Public Benefits, are or science?
• How will the non-public share be funded + terms? – Federal Authorization and Budget – WIFIA – Equity/Bond Market
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Identify beneficiaries and cost/benefit evaluation
• “What will I get, and what will it cost me?” • How do I finance my share? Local bonding or Project
bonding? • How does Sites perform without and with BDCP?
– Without BDCP, operations provide dry and critical year water supply.
– With BDCP, could meet new outflow requirements and water supply reliability
• How do we value reoperation benefits? • JPA developing a financial modeling tool to evaluate
different funding and payment scenarios
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Project Construction Cost evaluation
• Conducting a new capital cost study for Sites - current costs indexed for inflation
• Cost of Construction at $972M and 12 years -need to expedite construction schedule, timing of capital purchases
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Contacts:
Sean Sou Department of Water Resources P.O. Box 942836 Sacramento CA 94236 916-651-9269 [email protected]
Sharon McHale Bureau of Reclamation 2800 Cottage Way, MP-700 Sacramento CA 95825 916-978-5086 [email protected]
Project Websites: www.storage.water.ca.gov/northdelta/index.cfm www.usbr.gov/mp/nodos/index.html