Presentation by Board Chair Thomas V. Wornham at Water Talks: A Bay-Delta Fix

1. Thomas V. Wornham, Chair, Board of Directors
February 20, 2013

2.  Dennis Cushman
◦ Water Authority Assistant General Manager
◦ Overview of Bay-Delta, Bay-Delta Conservation Plan and potential
impacts to San Diego water agencies and ratepayers
 Barry Nelson
◦ Natural Resources Defense Council Senior Policy Analyst
◦ Overview of Conceptual Alternative Portfolio Approach to Bay-
Delta fix
 Q & A after each presentation
 Twitter hashtag: #watertalks
 Follow our tweets @sdcwa
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3. Importance of Bay-Delta
San Francisco Bay
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5. LAKE
SHASTA
San Diego County
LAKE imports ~70% of its
OROVILLE
water supply
State Water Project
(Bay-Delta)
28%
Colorado River
44%
Local Supplies
and Conservation
28%

6. Local Supplies
26,000 AF
5%
Imported Water
Metropolitan Water District
552,000 AF
95%
Total = 578,000 AF
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7. Community’s Response:
“Never Again!”
“No More Water Shortages!”
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8. Diversify supply sources
 Imported
◦ Imperial Irrigation District transfer through system
and on-farm conservation projects
◦ Canal lining projects
 Local Supply Development
◦ Conservation
◦ Recycling
 17 active non-potable recycling projects countywide
 Potential for indirect and direct potable reuse projects
◦ Brackish groundwater recovery
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9.  Invest in regional water delivery, storage
and water treatment
 $3.6 billion Capital Improvement Program
◦ Ensure a reliable treatment & delivery system
 $2 billion of investments in past decade alone
◦ Protect the region from imported supply cut-off (e.g.
earthquake, drought)
 $1.5 billion Emergency Storage Project
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10. Historic Investments in Infrastructure
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11.  Implements diversification strategy
 Desalination supplies included in
2005 and 2010 Water Authority
Urban Water Management Plans
 Nov. 29, 2012: Water Authority
Board of Directors approved 30-
year Water Purchase Agreement
with Poseidon Resources
 December 2012:
◦ Project financing complete
◦ Construction began
 2016: Project operations commence
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12. Increasing San Diego County's Water Supply
Reliability through Supply Diversification
1991 2012 2020
26 TAF
(5%)
24 TAF 103 TAF
70 TAF 80 TAF 44 TAF
80 TAF (4%) 18 TAF (13%)
(11%) (10%) (6%)
552 TAF (13%) (3%) 56 TAF
(95%) 61 TAF (7%)
85 TAF (10%)
(14%) 27 TAF
190 TAF
Total = 578 TAF (4%)
(24%) 231 TAF
274 TAF
(45%) (30%) 48 TAF
(6%)
Total = 612 TAF Total = 779 TAF
Metropolitan Water District Recycled Water
Imperial Irrigation District Transfer Seawater Desalination
All American & Coachella Canal Lining Groundwater
Conservation (existing and additional) Local Surface Water
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TAF=Thousand Acre-Feet

13. San Diego County: 1991 vs. 2013
$1259
$186
3.1 1.3
578 2.5 1.08 $110* $549* 542
1991 2013
Water use (thousand acre-feet) Jobs (millions)
Population (millions) Gross Domestic Product (billions)
Cost of water per acre-foot (full service
treated water rate)
* 2012 dollars
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14. Visit our website: SDCWA.org
sdcwa.org/mobile-news-app
@sdcwa
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