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.

1. Michael T. Hogan
Board Chairman
San Diego County Water Authority

2.  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
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3.  Water Authority Camp
Local Water Agencies
Lakeside WD City of Santa Fe
secures supplies for Pendleton Poway ID
24 local agencies
Carlsbad National City* Rainbow South Bay
MWD MWD Irrigation
District*
◦ 6 cities City of Del City of Ramona Vallecitos
Mar Oceanside MWD WD
◦ 14 water or utility
City of Olivenhain Rincon Del Valley
districts Escondido MWD Diablo Center
MWD MWD
◦ 3 irrigation districts Fallbrook Otay Water City of San Vista ID
PUD District Diego
◦ 1 military base Helix WD Padre Dam San Yuima
MWD Dieguito MWD
WD
* Member of the Sweetwater Authority
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4.  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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5. LAKE
SHASTA
San Diego County
LAKE imports ~80% of its
OROVILLE
water supply
State Water Project
(Bay-Delta)
30%
Colorado River
50%
Local Supplies
and Conservation
20%
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6. 66

7. 1991 2011 2020
3% 5% 7% 6%
5% 14% 5% 6% 10%
12% 9%
13%
95%
17%
48%
23%
22%
Metropolitan Water District Seawater Desalination
Imperial Irrigation District Transfer Local Surface Water
All American & Coachella Canal Lining Recycled Water
Conservation Groundwater
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8. IID and Canal Lining Deliveries 2003-2021
Acre-Feet
300,000
250,000
IID Water
Transfer
200,000
Canal Lining
150,000
100,000
50,000
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
Calendar Year
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9.  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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10.  Multi-decade investment
◦ Incentive programs 70,000
60,000
◦ Surveys and retrofits 50,000
◦ Efficiency standards 40,000
30,000
 2007-2009: drought 20,000
10,000
response campaign 0
2005
1991
1993
1995
1997
1999
2001
2003
2007
2009
◦ 20-Gallon Challenge
 2020: 17% of demand
met through local
conservation
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11.  $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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12. Major CIP Investments Since 1991
Pipelines Pipe Regional Canal Pumping/ Regional Hydro-
Relining Water Linings Control Water Electric
Storage Facilities Treatment
1991 2000-2013 2020 12

13. 13

14. Project: All American & Coachella Canal
Lining Projects
Complete: 2010 (AAC) and 2006 (CC)
Cost: $452 million total, including
$198 million from Water Authority
Benefits: 80,000 AF/Y for 110 Years
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15. Project: Twin Oaks Water Treatment Plant
Complete: 2008
Cost: $179 million
Benefit: 100 MGD treated supply for region 15

16. Project: Olivenhain Dam & Reservoir
Complete: 2003
Cost: $198 million
Benefit: 22,000 AF of storage
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18. Project: Lake Hodges Projects
Complete: 2011
Cost: $196 million
Benefits: 20,000 AF ESP storage; 40MW power
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19. Project: San Vicente Pipeline & Tunnel
Complete: 2011
Cost: $459 million
Benefit: Improved Water Delivery
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20. Project: San Vicente Dam Raise
Complete: 2013
Cost: $482 million
Benefit: Increase reservoir
capacity by 152,000 acre-feet 20
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21. Rendering of dam raised by 117 feet
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22. Project: Pipeline Relining Program
Complete: Ongoing
Cost: $787 million
Benefit: Extended life of major pipelines
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23.  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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24. San Diego County: 1991 vs. 2011
$186
$1,066
3.1 1.3
578 2.5 1.08 $65 $323 566
1991 2011
Water use (thousand acre-feet) Jobs (millions)
Population (millions) Gross Domestic Product (billions)
Cost of water per acre-foot (full
service treated water rate)
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