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Frank Belock, Deputy General ManagerSan Diego County Water Authority

Water Authority Background

Wholesale water agency g ycreated by State Legislature in 1944

24 membe agencies24 member agencies36-member board of directorsServes 3.2 million people and Se es 3 o peop e a dregion’s $174 billion economy

Service area920,000 acres97% of county’s population

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Water Authority.. The early yearsy y y

1946Last year local water supply was able to support San Diegowas able to support San Diego county’s population and economy

County population: 552,80491% increase from 194091% increase from 1940

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San Diego County’s Typical Water Sources

LAKELAKESHASTA

LAKEOROVILLE

San Diego County imports more than 80% of its water supply

State Water Project(Bay-Delta)

28%

of its water supply

28%Colorado River

54%

Local Water Supply Projects

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Supply Projects 18%

Annual Precipitation

San Diego CountyCounty

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Future Diversification Goals

2010 20201991

95%

6%

7%

6%

10%

10%

5%

9%

11%2%

2% 4%2%

8%

29%

6%

9%

Metropolitan Water District Seawater Desalination62%

21%

Imperial Irrigation District Transfer

All American & Coachella Canal Lining

Conservation

Local Surface Water

Recycled Water

Groundwater

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Conservation Groundwater

Dry-Year Water Transfers

Challenges to Our Water Supplyg pp y

Regulatory restrictionsg yFish protections limit State Water Project deliveries

Longfin Smelt

DroughtThree straight dry yearsFirst 2010 snow survey at

Delta Smelt

g

First 2010 snow survey at 85% of normal

Low Storage Chinook SalmonLow Storage

Central Valley Steelhead

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Green Sturgeon

When Can We Move Delta Water?

Regulatory Pumping RestrictionsJAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

S l

Regulatory Pumping Restrictions

Salmon

Delta Smelt

Longfin Smelt

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El Niño Does Not Solve Supply Problempp y

Doesn’t always deliver heavy rain and snow

Does not resolve pumping restrictions

More water lost duringMore water lost during wet years

Local rainfall only 5% of yregional supply

Map showing El Niño conditions forming in Pacific

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Climate Change:Water Resource ImpactsWater Resource Impacts

Decreasing snowpack, earlier snowmelt More rain and runoff, altered water qualityIncreased demand & evaporation from higher temperaturesSaltwater intrusion from sea level rise

Threatens Delta supplies

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Where Are We Today?y

Drought Alert in effectDrought Alert in effect through June 30, 2010

8% mandatory savings target8% mandatory savings target

Shortage likely into 2011Monitoring supply conditionsMonitoring supply conditions5% initial allocation from State Water ProjectShortage level for FY 2011 to be determined this spring

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Region Succeeding in Saving Water

July – December Urban Water Use

350,000

Acre-feet

16.9% b l

300,00012.9%

below 2008

below 2007

250,000

200,000200920082007

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Enhancing Colorado River Supplies to San DiegoSan Diego

QSA Supplies (Colorado River)Q pp ( )Imperial Irrigation District transfer

(45 to 75 years)

Canal-lining projects (110 years)All-American Canal Lining

Coachella Canal Lining C l li i j tCoachella Canal Lining

Provide 165,000 acre-feet combined in 2010

Canal-lining project

280,000 acre-feet annually by 2021

Current challenge to the agreementWater continues to flow until resolved

Paving train in action

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Water continues to flow until resolved

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Carlsbad Desalination Project

Private 50 mgd local gdesalination project being developed by Poseidon Resources

Located at the Encina PowerLocated at the Encina Power Station in Carlsbad

Water purchase agreements with nine SDCWA memberwith nine SDCWA member agencies

Work continues on finalizing the configuration of distribution Aerial view of Encina Power Stationgsystem (WA assistance)

Projected on-line date: 2012

Aerial view of Encina Power Station

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Camp PendletonSeawater Desalination Project

Proposed capacity between 50 and 150 mgd

Seawater Desalination Project

150 mgd

Feasibility Study nearing completion

Subsurface and open ocean intakeSubsurface and open ocean intake options

Potential integration with existing Camp Pendleton systemsp y

Next Steps

Planning Agreement with MCBCPMCBCP

Complete Environmental Review

Complete Preliminary Design

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Complete Preliminary Design

Earliest On-line Date - 2018Site map of potential plant

locations

$3.8 Billion Capital ImprovementProgram (1989-2030)Program (1989-2030)

System of facilities $3 8 Billi CIPSystem of facilitiesMeet regional demands

Meet emergency demands

$3.8 Billion CIP

Support

Common to bothDams and reservoirs

Pi li

ppEmergency Demands

34%

SupportPipelines

Pump stations and flow control facilities

Support Regional Demands

66%

Treatment Plant & Hydroelectric regional assets

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assets

Twin Oaks Valley Water Treatment PlantTreatment Plant

First Design-Build-Operate Project for W t A th itWater Authority

100 MGD plant in Twin Oaks ValleyTwin Oaks Valley

Provide water for 100,000 households

Enables distribution of treated water in ESP event

High quality water

Completed 2008

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Completed 2008

Pipeline ReliningPipeline ReliningReline or replace 82 miles of pipeline

Twenty-year program

Approx. $787 million

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Phase 1

Phase 3

Phase 2 Phase 4

Olivenhain Reservoir

Completed in 2003$198 million24,000 AF of24,000 AF of water, enough for 50,000 families a yearyear

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Lake Hodges ProjectsLake Hodges Projects

Will provide 20,000 AF for emergency use

Up to 40 000Up to 40,000 homes

Generate enough electricityenough electricity for 26,000 homes annuallyEstimated completion late 2010

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2010

25Photo Taken March 2009

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Reach 6 ‐ San Vicente Portal S  T l   S  Vi  R iStarter Tunnel at San Vicente Reservoir

Reach 6 ‐ San Vicente PipelineRotary Head Tunnel Boring Machine

San Vicente Pump Station

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San Vicente Surge Tank

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August 2009

October 2009

November 2009

2010 Water Bond Highlights

$11.14 billion

2010 Water Bond Highlights

Vital for plans to restore Bay-DeltaFunding for local supplyFunding for local supply reliability projectsFunding for local gwatershed projectsCompetitive grants for:

Drought relief projectsDrought relief projectsConservation, recycling, desalEnvironmental protection and restoration

Water Bond includes $100 million for San Vicente Dam Raise project restoration

Climate change adaptation

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Challenges Will ContinueC a e ges Co t ue

Achieving Delta fixes thatAchieving Delta fixes that restore reliability

Resolving Quantification g QSettlement Agreement disputes

Mitigating impacts of climate change

Creating new water ethic Delta waterways

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Future Diversification Goals

2010 20201991

95%

6%

7%

6%

10%

10%

5%

9%

11%2%

2% 4%2%

8%

29%

6%

9%

Metropolitan Water District Seawater Desalination62%

21%

Imperial Irrigation District Transfer

All American & Coachella Canal Lining

Conservation

Local Surface Water

Recycled Water

Groundwater

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Conservation Groundwater

Dry-Year Water Transfers

Questions?Questions?

San Diego County Water AuthoritySan Diego County Water Authority Speakers Bureau Requests & Information

speakersbureau@sdcwa.org(858) 522-6708( )

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