water talks: a bay-delta fix: impacts to your water supply and wallet overview
TRANSCRIPT
Thomas V. Wornham, Chair, Board of Directors
February 20, 2013
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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Importance of Bay-Delta
San Francisco Bay
LAKE SHASTA
LAKE OROVILLE
State Water Project (Bay-Delta)
28% Colorado River
44%
Local Supplies and Conservation
28%
San Diego County imports ~70% of its water supply
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Total = 578,000 AF
Imported Water
Metropolitan Water District
552,000 AF
95%
Local Supplies
26,000 AF
5%
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Community’s Response:
“Never Again!” “No More Water Shortages!”
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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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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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Historic Investments in Infrastructure
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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Metropolitan Water District
Imperial Irrigation District Transfer
All American & Coachella Canal Lining
Local Surface Water
Groundwater
Conservation (existing and additional)
2012 1991
Total = 612 TAF
Recycled Water
274 TAF
(45%)
61 TAF
(10%)
18 TAF
(3%)
24 TAF
(4%) 70 TAF
(11%) 80 TAF
(13%)
85 TAF
(14%)
552 TAF
(95%)
26 TAF
(5%)
2020
Total = 779 TAF
231 TAF
(30%) 48 TAF
(6%)
27 TAF
(4%)
44 TAF
(6%)
103 TAF
(13%) 80 TAF
(10%)
190 TAF
(24%)
56 TAF
(7%)
Seawater Desalination
Total = 578 TAF
TAF=Thousand Acre-Feet
Increasing San Diego County's Water Supply Reliability through Supply Diversification
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San Diego County: 1991 vs. 2013
1991 2013
578
Water use (thousand acre-feet)
542 $110*
$186
Gross Domestic Product (billions)
Jobs (millions)
1.08
1.3
2.5
3.1
Population (millions)
$549*
Cost of water per acre-foot (full service treated water rate)
$1259
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* 2012 dollars
