desalination southern california
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Desalination &Desalination &
Southern CaliforniaSouthern CaliforniaJonas MintonJonas Minton
Planning & Conservation LeaguePlanning & Conservation League
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Meeting Southern CaliforniaMeeting Southern California
water needswater needsPerspectives on how much we needPerspectives on how much we need
& where we will get water«& where we will get water«
Investment Strategy for Investment Strategy for California Water California Water
California Water PlanCalifornia Water Plan
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Investment Strategy for California Water Investment Strategy for California Water
How much water does California need?How much water does California need?
Additional NeedAdditional Need Million acre feetMillion acre feet
Additional Population Additional Population(12 million by 2030)(12 million by 2030) 2.02.0--2.42.4
EnvironmentalEnvironmentalRestorationRestoration 1.01.0
Total Additional NeedTotal Additional Need 3.03.0--3.43.4
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Additional Needs Additional Needs 3.03.0--3.4 maf 3.4 maf
Yield from priorityYield from priorityoptionsoptions
4.094.09--4.69 maf 4.69 maf
ResultingResultingBalanceBalance
+0.69 to +1.69+0.69 to +1.69maf maf
Needs vs. Potential YieldNeeds vs. Potential YieldFromFrom Investment Strategy Investment Strategy
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California Water Plan UpdateCalifornia Water Plan Update
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California Desalination Task ForceCalifornia Desalination Task Force
AB 2717 (Hertzberg) called for Task AB 2717 (Hertzberg) called for TaskForce to:Force to:
³Make recommendationsrelated to potential
opportunities for the use of seawater and brackish water
desalination.´
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Desalination Task Force MembersDesalination Task Force Members
League of California Cities (City of HuntingtonLeague of California Cities (City of HuntingtonBeach)Beach)
Water agencies (Long Beach, Marin, etc.)Water agencies (Long Beach, Marin, etc.)
Coastal CommissionCoastal Commission Department of Water ResourcesDepartment of Water Resources EPAEPA Department of Health ServicesDepartment of Health Services
Energy CommissionEnergy Commission Environmental Groups (Surfriders)Environmental Groups (Surfriders) Consumer advocacy groups (Clean Water Consumer advocacy groups (Clean Water
Resources)Resources)
Industry InterestIndustry Interest
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Desalination Task ForceDesalination Task Force Findings:
Seawater desalination is more energy intensivethan brackish water desalination or water recycling
Desalination using reverse osmosis technologyrequire ~ 30 % more energy than existinginterbasin supply systems currently deliveringwater to parts of Southern California
Recommendation: Compare reasonable benefits, costs &
environmental impacts for desalination with other water supply alternatives available
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Task Force Findings: CostTask Force Findings: Cost
Cost for new seawater desalination will range from $700to $1,200 per af plus distribution costs
Figures based on subsidized energy costs of $0.05 per
kWh
Currently energy costs range from $0.08 to $0.13 kWh,adjusting estimated costs upward by $150 to $350 per acre-foot.
Therefore costs are likely to be well over $1000 per acre-foot
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Desalination Task ForceDesalination Task Force
Findings:
Brackish water desalination, beach well
intakes and screened intakes minimizeenvironmental impacts
Recommendation:
Ensure seawater desalination projectsavoid, reduce or minimize impingement,entrainment & other environmentalimpacts
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Desalination Task ForceDesalination Task Force
Findings:Findings:
State regulatory agencies have indicated thatco-located & new desalination intakes willrequire current assessment of entrainment &impingement impacts
Recommendation:Recommendation: Complete a current assessment of
entrainment & impingement impacts as part of the environmental review & permitting
process
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Desalination Task ForceDesalination Task Force
Findings: Once through cooling technology has well-
documented environmental impacts on
marine organisms Co-locating may provide justification for the
continued use of once-through cooling
Recommendation:Recommendation: Analyze the impacts of the desalination facilityoperations apart from the operations of theco-located facilities.
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Desalination Task ForceDesalination Task Force
Findings: Growth inducing impacts of any new water
supply project, including desalination, must beevaluated on a case-by-case basis
Recommendation: Environmental reviews should ensure that
growth related impacts of desalinationprojects are properly evaluated.
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Other RecommendationsOther Recommendations
Evaluate desalination based upon adoptedcommunity approved plans that integrateregional planning, growth and water
supply/demand projections
Ensure adequate public involvement beginningearly in the conception and development of desalination projects and continuing throughoutplanning, design and evaluation processes
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Is Poseidon'sIs Poseidon'sDesalination ProjectDesalination Project
consistent with theconsistent with theRecommendations of Recommendations of
the Desalination Taskthe Desalination TaskForce?Force?
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Poseidon ProposalPoseidon Proposal
Task Force Recommendation:Task Force Recommendation:
Ensure seawater desalination projects
avoid, reduce or minimize impingement,entrainment, & other environmentalimpacts
Poseidon ProjectPoseidon Project Using unscreened open ocean intakeUsing unscreened open ocean intake
from Power Plantfrom Power Plant
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Poseidon ProposalPoseidon Proposal
Task Force Recommendation:Task Force Recommendation: Complete a current assessment of
entrainment and impingement impactsas part of the environmental review &permitting process
Poseidon ProjectPoseidon Project Using temporary assessment granted toUsing temporary assessment granted to
the Power Plant that did not thoroughlythe Power Plant that did not thoroughlyassess impingement or entrainmentassess impingement or entrainment
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Poseidon ProposalPoseidon Proposal
Task Force RecommendationTask Force Recommendation
Analyze the impacts of the desalination
facility operations apart from theoperations of the co-located facilities
Poseidon ProjectPoseidon Project
Did not analyzed impacts if power plantDid not analyzed impacts if power plantclosescloses
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Poseidon ProposalPoseidon Proposal
Task Force RecommendationTask Force Recommendation
Environmental reviews should ensure
that growth related impacts of desalination projects are properlyevaluated
Poseidon ProjectPoseidon Project Did not analyze growth inducing impactsDid not analyze growth inducing impacts
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Poseidon ProposalPoseidon Proposal
Task Force RecommendationTask Force Recommendation Evaluate desalination based upon
adopted community plans that integrateregional planning, growth & water supply/demand projections
Poseidon ProjectPoseidon Project Project not proposed for meeting needsProject not proposed for meeting needs
of City of Huntington Beachof City of Huntington Beach
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What you can doWhat you can do
Ask the City to require an Ask the City to require anadequate EIRadequate EIR
Require a realistic assessment of Require a realistic assessment of water costs with unsubsidized energywater costs with unsubsidized energy
Require project proponents toRequire project proponents tocomplete a current assessment of complete a current assessment of impingement & entrainment impactsimpingement & entrainment impacts
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What you can doWhat you can do
Require project proponents to analyzeRequire project proponents to analyzeenvironmental impacts if power plantenvironmental impacts if power plantclosescloses
Require project proponents to accuratelyRequire project proponents to accuratelyanalyze growth inducing impactsanalyze growth inducing impacts
Ask those who would get water from Ask those who would get water from
Huntington Beach to fully implementHuntington Beach to fully implementconservation, recycling & groundwater conservation, recycling & groundwater treatmenttreatment