nc chamber public policy meeting
DESCRIPTION
Presentation by Frank Belock, Deputy General Manager to the Public Policy group at the North County Chamber on 9/17/09TRANSCRIPT
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San Diego Region San Diego Region Water Supply OutlookWater Supply Outlook
Frank BelockSeptember 17, 2009
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Water Authority Background
Wholesale water agency created by State Legislature in 1944
24 member agencies6 cities14 water utility 3 irrigation districts1 military base
Service area920,000 acres97% of county’s population
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Who Provides Your Water? Individual customers served by local retail water agencyLocal agencies supplied by wholesaler (Water Authority)Water Authority secures supplies from outside the region for 24 local agencies
6 cities14 water/utility districts3 irrigation districts1 military base
Local Water Agencies
Yuima MWD
San DieguitoWD
Padre Dam MWD
Helix WD
Vista IDCity of San Diego
Otay Water District
Fallbrook PUD
Valley Center MWD
Rincon Del Diablo MWD
Olivenhain MWD
City of Escondido
Vallecitos WD
Ramona MWD
City of Oceanside
City of Del Mar
South Bay Irrigation District*
Rainbow MWD
National City*Carlsbad MWD
Santa Fe ID
City of Poway
Lakeside WDCamp Pendleton
* Member of the Sweetwater Authority
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San Diego County’s Water Sources (2008)
LAKESHASTA
LAKEOROVILLE
State Water Project
(Bay-Delta) 28%
Colorado River 54%
Local Water Supply Projects
18%
San Diego County imports more than 80% of its water supply
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FONTENELLERESERVOIR
FLAMINGGORGE
RESERVOIR
NAVAJO RESERVOIR
BLUE MESA, MORROW POINT, CRYSTAL
RESERVOIRS
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Colorado River Entitlements(Million acre-feet)
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Imported Water SourcesState Water Project SuppliesColorado River Supplies
24 Local Retail Agencies and cities
San Diego County Water Authority
Bureau of Reclamation
Department of Interior
Priority 1: Palo Verde Irrigation District
Priority 2: Yuma Project
Priority 3a: Imperial Irrigation District
Priority 4 and 5a:Metropolitan Water District
of Southern California
Department ofWater Resources
State Water ContractorsMetropolitan Water District of Southern California
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California Water Use
Environmental35%
Urban13%
Agricultural52%
Source: Water Plan Update 2005
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How do we use water locally?
-50,000
100,000150,000200,000250,000300,000350,000400,000450,000
Commercial& Industrial
Public &Other
Residential Agriculture
Acre Feet
17%13%
59%
12%
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Three Challenges to Our Water Supply
1. RegulatoryPumping restrictions are sharply limiting imported water from Northern California
2. DroughtLast three years in California8 of last 10 on the Colorado River
3. Low storageMajor reservoirs have been drawn down to low levels
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Fish Protections Restrict Pumping
Banks Pumping PlantState Water Project Chinook salmon
Central Valley steelhead
Green sturgeon
Delta smelt
Longfin smelt
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JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
NoRe
stric
tions
NoNoRe
stric
tions
Rest
rictio
ns
Pumping Restricted ¾ of the Year
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Impacts of Regulatory Restrictions on Southern California’s Supplies
Critical Dry Average
598,000 AF
1,518,000 AF1,886,000 AF
Water supplies from the State Water Project without restrictions
AF = Acre-feet. One acre-foot = 325,900 gallons.
Wet
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Impacts of Regulatory Restrictions on Southern California’s Supplies*
980,000 AF
1,709,000 AF1,851,000 AF
23% lost
30% lost30% lost
460,460 AF 1,058,046 AF 1,320,200 AF
Reductions in water supplies from the State Water Project due to pumping restrictions to protect fish
AF = Acre-feet. One acre-foot = 325,900 gallons.
Critical Dry Average Wet
*Source: Metropolitan Water District; updated 7/78/2009
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Key Delta RisksKey Delta Risks
Seismic RiskBay Area FaultsSeismic RiskSeismic RiskBay Area FaultsBay Area Faults
Flooding RiskJones Tract (2004)
Flooding RiskFlooding RiskJones Tract (2004)Jones Tract (2004)
Fishery DeclinesDelta smelt
Fishery DeclinesFishery DeclinesDelta smeltDelta smelt
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We face significant losses of spring snowpack
By the end of the century California could lose half of its late spring snow pack due to climate warming. This simulation by Noah Knowles is guided by temperature changes from PCM’s Business-as-usual climate simulation. (a middle of the road emissions scenario)
• Less snow, more rain
• Particularly at lower elevations
• Earlier run-off
• More floods
• Less stored water
Knowles and Cayan 2001
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Water Resource Impacts
Decreasing snowpack, earlier snowmelt More rain - increased runoff – altered water qualityIncreased demand & evaporation– due to higher temperaturesIncreased saltwater intrusion – due to sea level rise
Increased salinity in Delta
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Current Drought Condition inSan Diego County
Metropolitan Water District (MWD) will allocate supplies
13% cut from MWD starting July 1
Water Authority allocating supplies to its 24 member retail agencies
Regional shortage: 8% Cutbacks to agriculture: 13% to 30%
Financial penalties in place
“Drought Alert” conditionMandatory water use restrictions
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Mandatory Water Use RestrictionsIrrigation restrictions
Limits on number of days/duration/prohibited hours Stop runoff/time limits to repair leaks
Ornamental water fountain/feature use prohibitedUnless using recycled water
Washing paved surfaces prohibitedCar washing: positive shut-off nozzle or commercial site that re-circulates/re-uses water Restaurants: water served only upon requestLodging: must offer guests option of not laundering towels and linens dailyConstruction purposes: use recycled or non-potableFor specifics on local regulations: www.sdcwa.org
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CY 2010 Recommended Rates and Charges— Summary
Overall increase is 18.1% starting September 1, 2009
Impact on a typical household is $5.80/monthIncrease is below MWD’s treated water increase of 21.1%Wholesale full-service, treated water rate is $905/acre-foot
Average single-family household of four with an irrigated landscape uses ½-acre-foot per year
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Diversifying San Diego County’s Water Supply Portfolio
Metropolitan Water District
Imperial Irrigation District Transfer
All American & Coachella Canal Lining
Conservation
Seawater Desalination
Local Surface Water
Recycled Water
Groundwater
2010 20201991
95%
MWD Supplies 62%
MWD Supplies
29%
QSA Supplies
20%Local Supplies
16%
QSA Supplies
31%
Local Supplies 40%
Dry-Year Transfers
2%
Dry-Year Water Transfers
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Diversification Strategy is Working
Colorado River Quantification Settlement Agreement (QSA)155,000 AF in FY 2010
Ramping up to 280,000 AF/YR by 2021
Expanding development of local suppliesRecycled waterGroundwaterSeawater desalinationConservation
$3.7 billion Capital Improvement ProgramHistoric regional infrastructure investments
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Enhancing Colorado River Supplies to San Diego
QSA Supplies (Colorado River)Imperial Irrigation District transfer (45 to 75 years)
Canal-lining projects (110 years)All-American Canal Lining
Coachella Canal Lining
Provide 129,000 acre-feet combined in 2009
280,000 acre-feet annually by 2021
Canal-lining project
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All American Canal Lining
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Desalination
Benefits:New locally-controlled potable water supplyDrought-proof supplyImproved water qualityReliable supply (proven technology)Economies of Scale
Challenges:Higher capital and operating cost (similar to the cost of recycled water)Availability of coastal sites for desalinationIntake and Discharge Permitting (impacts to marine life)Higher energy use relative to other water resources
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Carlsbad Desalination Project
Private 50 mgd local desalination project being developed by Poseidon Resources
Located at the Encina Power Station in Carlsbad
Water purchase agreements with nine SDCWA member agencies
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Major permitting hurdles:
Coastal development permit (cleared)
Lease amendment from SLC (cleared)
Discharge permit with RWQCB (now cleared)
Work continues on finalizing the configuration of distribution system
Projected on-line date: 2012
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Proposed capacity between 50 and 150 mgd
Feasibility Study nearing completion
Subsurface and open ocean intake options
Potential integration with existing Camp Pendleton systems
Next Steps
Planning Agreement with MCBCP
Complete Environmental Review
Complete Preliminary Design
Earliest On-line Date - 2018
Camp PendletonSeawater Desalination Project
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Seawater Desalination: Mexico and South County
Joint study with Mexico and U.S. Colorado River water agencies
Rosarito Beach site25 to 50 mgd
South San Diego CountyFollow-up to 2005 Water Authority studySite north of border, near International OutfallUp to 25 mgd
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Non-potable Recycled Water:
is a high-quality, drought-proof water supply
is an environmentally sensible use of a limited resource
replaces potable water use for the irrigation of landscapes, crops, golf courses, freeways, etc.
is not impacted by potable water restrictions/ aqueduct shutdowns
Will represent 6% of the supply portfolio in 2020
What about Water Recycling?
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Indirect Potable Reuse
Coordination with Regional Board & California Department of Public HealthProtect public health and water qualityPublic acceptance
Need creative solutions for San Diego- Accommodate small groundwater basins- Reservoir Augmentation
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City of San Diego Indirect Potable Reuse (IPR)/Demonstration Project
+ + + + +Ultra-filtration
ReverseOsmosis
UV +Peroxide
PipelineChlori-nation
DetentionTime
inReservoir
Treatmentat
Drinking WaterPlant
Tertiary Treatment
Advanced Water Treatment process
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Capital Improvement ProjectsEmergency Storage ProgramMajor Projects Completed or under constructionAsset Management
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$3.8 Billion Capital ImprovementProgram (1989-2030)
System of facilities to:Meet regional demands
Meet emergency demands
Common to both:Dams and reservoirs
Pipelines
Pump stations and flow control facilities
Treatment Plant & Hydroelectric regional assets
$3.8 Billion CIP
Support Emergency Demands
34%
Support Regional Demands
66%
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Water Storage –Olivenhain Reservoir
Completed in 2003 at a cost of $198 million, the OlivenhainReservoir stores 24,000 AF of water, enough water for 50,000 families a year
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Water Storage –Lake Hodges Projects
Will provide 20,000 AF of water storage for emergency use, enough for up to 40,000 homes, and annually generate enough electricity for 26,000 homes
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Lake Hodges Projects
Construction of the Lake Hodges Projects began in 2005 and is anticipated to be complete in late 2010.
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Water Storage –San Vicente Dam Raise
Will increase lake capacity by 150,000 AF from the current 90,000 AFTotal project cost is $568 millionConstruction will be complete by the fall of 2012Once finished, depending upon rainfall and water supply and demand, will take 2 – 5 years to fill to capacity
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Twin Oaks ValleyWater Treatment PlantTwin Oaks ValleyWater Treatment Plant
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Brand Identity Package
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Water Smart Branding
LandscapesDesignIrrigationPlantsMaintenance
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Challenges and Opportunities
The diversification of our water supplies is key to reliabilityWe need to create a “new water ethic”The price of water will continue to increase as a result of supply shortages, environmental requirements, and new facility development.
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Questions?
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