Transcript Temperance Flat RM 274 Reservoir

Upper San Joaquin River Basin
Storage Investigation
ACWA
Regions 9 and 10
Carlsbad Water Summit
Don Rasmussen
State of California
Department of Water Resources
September 13, 2007
U.S. Department of the Interior
Bureau of Reclamation
Outline
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Planning Objectives
Potential Benefits
Feasibility Status and Project Alternatives
Estimated Costs and Example Cost Allocation
Evaluating Project Operations
How SOD Can Help California
Next Steps
Planning Objectives
 Primary Objectives – Develop and Manage Water Supply to:
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Contribute to restoration of the San Joaquin River
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Improve water quality of the San Joaquin River
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Facilitate conjunctive water management and exchanges that
improve urban water quality
 Secondary Objectives
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Increase control of flood flows at Friant Dam
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Improve water supply for environmental protection
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Develop hydropower generation opportunities
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Develop recreation opportunities
Potential Benefits
 San Joaquin River Restoration Enhancement
 Agricultural Water Supply Reliability
 M&I Water Supply Reliability
 M&I Water Quality
 Hydropower
 Flood Damage Reduction
 Reservoir Recreation
Feasibility Study Phases
Initial Alternatives
Plan Formulation
Feasibility Study
Initial
Alternatives
Phase
 Reviewed 24 Reservoir Sites
 Reservoir enlargement
 On-stream
 Off-stream / Off-canal
 Details Considered
 Water supply
 Environmental effects
 Hydropower
 Costs
 Retained 4 Reservoir Sites
 Enlarged Millerton Lake
 Fine Gold Reservoir
 Temperance Flat RM 274
 Temperance Flat RM 279
Retained Alternatives
Fine Gold
Reservoir
Temperance
Flat RM 274
Temperance
Flat RM 279
Fine Gold
Reservoir
 Storage capacity 780 TAF, H = 600 Ft
 Pump storage with Millerton Res.
 Reservoir surface area 5,400 acres
 Saddle dam required
 Power use exceeds generation
Temperance Flat
RM 274
Reservoir
 Storage capacity 1,260 TAF
 Dam height 640 feet
 Reservoir surface area 5,700 acres
 Extends upstream to Kerckhoff Dam
 Power losses exceed generation
Temperance Flat
RM 279
Reservoir
 Storage capacity 690 TAF
 Dam height 545 feet
 Reservoir surface area 3,500 acres
 Extends upstream to Kerckhoff Dam
 Full power recovery is possible
Feasibility Phase
 Refine and Compare Alternatives
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Structural features and operating plan
Complete feasibility-level designs and cost estimates
Environmental effects
Benefit/cost analysis
 Prepare Feasibility Report and Environmental
Compliance Documents (EIS/EIR)
 Identify Preferred Alternative
 Address Implementation Issues
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Obtain financial commitment from partner(s)
Estimated Cost and Example Cost
Allocation
Total Project Cost Estimate
$2.0 Billion
Assumed Portion of Project Costs
Allocated to Water Supply
50%
Average Annual Water Supply
183,000 acre-feet per year
Equivalent Unit Cost for
Water Supply
$350 per acre-foot
Evaluating Project Operations
“a moving target”
Wanger
Ruling
Isolated
Conveyance
Climate
Change
SJR
Settlement
How SOD Storage can Benefit CA
Los Vaqueros
Expansion
Los Banos Grande Temperance Flat
San Luis Reservoir
Potential Cross
Valley Conveyance
How SOD Storage Can Benefit
California
 The operational flexibility of SOD surface storage can produce
benefits for supply, quality and the ecosystem while reducing
stressors in the Delta
 TF and LVE can both serve SWP Contractors by helping improve or
at least retain SWP supply reliability
 Can integrate FWUA service area with the SWP and CVP
 Can work conjunctively with groundwater and improve the efficiency
of other water management measures (transfers, exchanges, timing
dependent actions)
 Provide water supply in drought periods– when the benefits of
conservation can lose their effectiveness
Next Steps
A revised schedule is being developed in light of:
 San Joaquin River Settlement Agreement
 Integration Opportunities
 Wanger Decision, Climate Change, Delta
Conveyance
 Objective: Get Feasibility Study Report Done
ASAP!
For Additional Information
Contact
Erika Kegel
Project Manager
Bureau of Reclamation
2800 Cottage Way
Sacramento CA 95825
916-978-5081
[email protected]
Don Rasmussen
Project Manager
Department of Water Resources
1416 Ninth Street
Sacramento CA 95814
916-651-9244
[email protected]
Project Websites:
www.usbr.gov/mp/sccao/storage/index.html
www.storage.water.ca.gov/upsanj/index.cfm