Desalination Southern California

8/6/2019 Desalination Southern California

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Desalination &Desalination &

Southern CaliforniaSouthern CaliforniaJonas MintonJonas Minton

Planning & Conservation LeaguePlanning & Conservation League



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



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



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



California Water Plan UpdateCalifornia Water Plan Update



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.´



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



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



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



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




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




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.




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.



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



Is Poseidon'sIs Poseidon'sDesalination ProjectDesalination Project

consistent with theconsistent with theRecommendations of Recommendations of

the Desalination Taskthe Desalination TaskForce?Force?



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




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




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




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




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



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



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

Desalination Southern California

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