municipal water district of orange county february 1, 2017€¦ · slide2. slide3 pilot scale...
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Municipal Water District of Orange CountyFebruary 1, 2017
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BackgroundPotential ProgramMajor Findings
Technical feasibilityAdvisory panelConsistent with IRPCosts
Next Steps
Slide 2
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Slide 3
Pilot Scale Studies (2010-12) Progress Report (September 2015) Board approval and appropriation for Demonstration
Plant (November 2015) Historical Review and 2015 Update (February 2016) Progress Report (August 2016) Feasibility Study Final Draft (December 2016)
Demonstration PlantCompletion of Final Design (February 2017)Award of Construction Contract (June 2017)
Detailed Facility Planning and Engineering (2017-18)
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Slide 4
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Slide 5
Collaboration between Metropolitan and Sanitation Districts of Los Angeles CountyDevelopment of new regional water source
Up to 150 mgd (168,000 AFY)Deliveries to Member AgenciesRecharge and store in multiple groundwater basinsIncreases regional storage reserves
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Slide 6
Full-Scale AWT Site
Demo Plant Site
110
Main St.
Sepulveda Blvd.
Figueroa St.
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Slide 7
JWPCP
Main SanGabriel Basin
CentralBasinWest
CoastBasin
OrangeCountyBasin
Rio HondoSpreadingGrounds
OCSpreadingGrounds
Santa FeSpreadingGrounds
Weymouth Plant
Diemer Plant
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Slide 8
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Slide 9
No Fatal Flaws?Is it technically, institutionally and legally possible to implement a 150 MGD Indirect Potable Reuse program using effluent from the LACSD JWPCP?
Justified and Cost Effective?Are the costs and benefits of the program consistent with the IRP and other approaches for achieving comparable amounts of recycled water?
Impacts on cost of water to Member Agencies?How would the cost of water be affected if the base case and its assumptions were implemented?
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Slide 10
Comprehensive technical evaluationCoordination with Regulators throughoutCooperation and support from groundwater
basin managersExpert advisory panel review and input
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Slide 11
Potential 150-mgd program is feasibleTreatment, conveyance and groundwater recharge technically feasibleInstitutional complexity but no fatal flawsRegulatory approvals and permitting feasible
Program provides significant regional benefitsCosts and benefits are consistent with the 2015
IRP UpdateAdaptable to future Direct Potable Reuse
regulations, if needed
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Program Element Feasibility1. Advanced Water Treatment Plant Feasible2. Conveyance System Likely Feasible3. Groundwater Basins, Storage and Extraction Feasible4. Environmental and Regulatory Feasibility Feasible5. Feasibility of Essential Agreements with LACSD Feasible6. Feasibility of Essential Institutional Arrangements No Fatal Flaws7. Regional Benefits and Consistency with IRP Feasible8. Overall Estimated Program Costs Feasible9. Public Acceptability (with robust outreach effort) Feasible
Feasible: No fatal flaws, limited dependence on other parties, other examples of success, and some unknownsLikely Feasible: No fatal flaws, significant dependence on other parties, limited comparable existing examples, and many unknownsNo Fatal Flaws: No fatal flaws but in need of further investigations and studies
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Slide 13
Richard Atwater, ChairFormer Executive Director of Southern California Water Committee
Shivaji DeshmukhAssistant General Manager of West Basin Municipal Water District
Thomas HarderThomas Harder and Associates (Hydrogeology)
David JenkinsProfessor Emeritus, University of California, Berkeley
Edward MeansPresident, Means Consulting LLC
Joseph ReichenbergerProfessor, Loyola Marymount University
Paul WesterhoffProfessor, Arizona State University
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Slide 14
Concluded findings are reasonableDo not see any technical fatal flawsEmphasized institutional complexityHelped identify program risks Contributed to and support recommendations
“The Advisory Panel agrees with the findings and recommendations of the Feasibility Study Report and supports moving forward”
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Slide 15
Consistent with Metropolitan’s IRP 2015 UpdateAugments regional supplies during normal,
drought and emergency conditionsReduced frequency and magnitude of supply
allocationsIncreases storage in groundwater basins and
regional storage reserves
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Local Supply
CRA
SWP
0.00.51.01.52.02.53.03.54.04.55.0
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
Mill
ion
Acre
-Fee
t
Forecast Year
RRWPDry-Year Retail Demand with Conservation
Dry-Year Storage and/or Additional Development*
*Additional Development of Local Supplies or Conservation Beyond IRP Target
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Slide 17
RRWP offsets the use of imported supplies to meet groundwater replenishment needs
The offset imported water is stored in regional storage for use in dry years
Dedicated replenishment supplies stabilize groundwater production
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Slide 18
Total capital cost of $2.7 billionAll new facilities including 150-mgd AWT, 60 miles of pipeline and 3 pump stations
Annual O&M cost of $129 millionIncludes power costs for AWT and pump stations
Total unit cost of $1,600/AFInterest rate at 4%No grants or low-interest loansIncludes 35% capital cost contingency
Total cost divided by total water sales of $150-$160/AFMetropolitan water sales at 1.7 MAFY
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$0
$1,000
$2,000
$3,000
$4,000
$5,000
$6,000
$7,000
$8,000
StormwaterCentralized
StormwaterDistributed
GroundwaterRecovery
Recycled Water SeawaterDesalination
($/AF)
$1,600
$12,000
RRWP1
High
Low
75th Percentile
25th Percentile
Source: Integrated Water Resources Plan 2015 Update1 Estimated unit cost is based on 4% interest rate financing and does not include additional outside funding or optimized design.
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Slide 20
Low Base HighCapital Cost Contingency 25% 35% 50%
Unit Cost per Acre Foot $1,368 $1,600 $2,013
Financing Interest Rate 2.0% 4.0% 5.0%
O&M Contingency -0- -0- 25%
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Slide 21
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Slide 22
Complete design, construction, start-up and operation of Demonstration Plant
Proceed with facility planning & optimization, engineering and additional groundwater modeling
Finalize agreements with Sanitation DistrictsDevelop institutional and financial arrangements
needed for implementationInitiate public outreach effort focused on
Demonstration Plant
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Slide 23
2016 2017 2018 2019
Feasibility Phase
PlanningPhase
Board Action
Regulatory Coordination
CEQA
DesignPhase
Feasibility Study
Demo Plant Design
OperationsConstruction
Facilities Planning & Eng.
Institutional Arrangements
Conceptual/Prelim Design
Public Outreach
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Slide 24
Additional Indirect Potable Reuse deliveriesChino and Raymond Basins
Flexibility to accommodate future Direct Potable Reuse regulations
Potential regional conveyance in close proximity to Weymouth and Diemer plantsTreatment augmentation through Weymouth and Diemer PlantsAdditional recycled water delivered from Joint Water Pollution Control Plant or other regional wastewater treatment plants (e.g., Hyperion)
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