water talks: investments in water reliability
DESCRIPTION
Presentation by Board Chair Michael T. Hogan at the May 31 Water Talks Forum. This is a summary of the Water Authority's diversification strategy and recent investments in supply reliability.TRANSCRIPT
Michael T. Hogan
Board Chairman
San Diego County Water Authority
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Wholesale water agency created by Legislature in 1944
◦ 24 member agencies
◦ 36-member board of directors
◦ Serves 3.1 million people, $186 billion economy
Service area
◦ 950,000 acres
◦ 97% of county’s population
Build, own and maintain large-scale water infrastructure
Water Authority secures supplies for 24 local agencies
◦ 6 cities
◦ 14 water or utility districts
◦ 3 irrigation districts
◦ 1 military base
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Local Water Agencies
Camp Pendleton
Lakeside WD City of Poway
Santa Fe ID
Carlsbad MWD
National City* Rainbow MWD
South Bay Irrigation District*
City of Del Mar
City of Oceanside
Ramona MWD
Vallecitos WD
City of Escondido
Olivenhain MWD
Rincon Del Diablo MWD
Valley Center MWD
Fallbrook PUD
Otay Water District
City of San Diego
Vista ID
Helix WD Padre Dam MWD
San Dieguito WD
Yuima MWD
* Member of the Sweetwater Authority
Common industry measurement
About 326,000 gallons
Enough to submerge one acre one foot deep
Supplies two families for a year
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LAKESHASTA
LAKEOROVILLE
State Water Project(Bay-Delta)
30%Colorado River
50%
Local Supplies and Conservation
20%
San Diego County imports ~80% of its water supply
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Metropolitan Water District
Imperial Irrigation District Transfer
All American & Coachella Canal Lining
Conservation
Seawater Desalination
Local Surface Water
Recycled Water
Groundwater
2011 20201991
95%
48%23%
14%
12% 9%
6%5%5%
17%
10%
7%6%
22%
13%
3%5%
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0
50,000
100,000
150,000
200,000
250,000
300,000
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
Calendar Year
Acre-Feet
IID Water Transfer
Canal Lining
IID and Canal Lining Deliveries 2003-2021
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Several hundred million dollars invested since 1991◦ 17 active non-potable recycling
projects countywide◦ >10 MGD brackish groundwater
desalting◦ Recycled water and groundwater
supplies to double by 2020
Seawater desalination Carlsbad Camp Pendleton Rosarito Beach
Indirect Potable Reuse Local supplies to provide 30%
of the region’s water supply by 2020
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0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
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91
19
93
19
95
19
97
19
99
20
01
20
03
20
05
20
07
20
09
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Multi-decade investment
◦ Incentive programs◦ Surveys and retrofits◦ Efficiency standards
2007-2009: drought response campaign
◦ 20-Gallon Challenge
2020: 17% of demand met through local conservation
$3.8 billion Capital Improvement Program (CIP)◦ $1.5 billion Emergency Storage Project
◦ New and expanded surface storage
◦ Water treatment
◦ Pipelines
◦ Pump stations
◦ Power generation
◦ Aqueduct Protection Program
Pipeline relining program
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Canal Linings
Regional Water
Treatment
Hydro-Electric
Pipelines Pumping/Control Facilities
1991 2000-2013 2020
Major CIP Investments Since 1991
Pipe Relining
Regional Water
Storage
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Project: All American & Coachella CanalLining ProjectsComplete: 2010 (AAC) and 2006 (CC)Cost: $452 million total, including
$198 million from Water AuthorityBenefits: 80,000 AF/Y for 110 Years
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Complete: 2008Cost: $179 millionBenefit: 100 MGD treated supply for region
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Project: Twin Oaks Water Treatment Plant
Project: Olivenhain Dam & ReservoirComplete: 2003Cost: $198 million
Benefit: 22,000 AF of storage
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Project: Lake Hodges ProjectsComplete: 2011Cost: $196 millionBenefits: 20,000 AF ESP storage; 40MW power
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Project: San Vicente Pipeline & TunnelComplete: 2011Cost: $459 millionBenefit: Improved Water Delivery
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Project: San Vicente Dam RaiseComplete: 2013Cost: $482 million
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Benefit: Increase reservoir capacity by 152,000 acre-feet
2121
Rendering of dam raised by 117 feet
Project: Pipeline Relining ProgramComplete: OngoingCost: $787 millionBenefit: Extended life of major pipelines
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Over past two decades:
◦ Achieved greater supply diversification
◦ Secured 280,000 AF/YR of long-term reliable new supplies from Colorado River
◦ Reduced reliance on MWD by 50%
Helped offset MWD cuts from 2009-2011
◦ Achieved sustained water conservation
◦ Invested billions in new, major water supply infrastructure
◦ Vastly improved water supply reliability to protect region’s $186 billion economy and quality of life for 3.1 million people
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San Diego County: 1991 vs. 2011
1991 2011
578
Water use (thousand acre-feet)
566$65
Gross Domestic Product (billions)
$186
Jobs (millions)
1.08
1.3
Population (millions)
2.5
3.1
$323
Cost of water per acre-foot (full service treated water rate)
$1,066
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