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Water Talks: Investments in Water Reliability

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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.

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Water Talks: Investments in Water Reliability

  1. 1. Michael T. Hogan Board ChairmanSan Diego County Water Authority
  2. 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 2
  3. 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 3
  4. 4.  Common industry measurement About 326,000 gallons Enough to submerge one acre one foot deep Supplies two families for a year 4
  5. 5. LAKE SHASTA San Diego County LAKE imports ~80% of its OROVILLE water supplyState Water Project (Bay-Delta) 30% Colorado River 50% Local Supplies and Conservation 20% 5
  6. 6. 66
  7. 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 7
  8. 8. IID and Canal Lining Deliveries 2003-2021Acre-Feet300,000250,000 IID Water Transfer200,000 Canal Lining150,000100,000 50,000 0 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Calendar Year 8
  9. 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 9
  10. 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 10
  11. 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 11
  12. 12. Major CIP Investments Since 1991Pipelines Pipe Regional Canal Pumping/ Regional Hydro- Relining Water Linings Control Water Electric Storage Facilities Treatment 1991 2000-2013 2020 12
  13. 13. 13
  14. 14. 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 14
  15. 15. Project: Twin Oaks Water Treatment PlantComplete: 2008Cost: $179 millionBenefit: 100 MGD treated supply for region 15
  16. 16. Project: Olivenhain Dam & ReservoirComplete: 2003Cost: $198 millionBenefit: 22,000 AF of storage 16
  17. 17. Project: Lake Hodges ProjectsComplete: 2011Cost: $196 millionBenefits: 20,000 AF ESP storage; 40MW power 18
  18. 18. Project: San Vicente Pipeline & TunnelComplete: 2011Cost: $459 millionBenefit: Improved Water Delivery 19
  19. 19. Project: San Vicente Dam RaiseComplete: 2013Cost: $482 millionBenefit: Increase reservoircapacity by 152,000 acre-feet 20 20
  20. 20. Rendering of dam raised by 117 feet 21 21
  21. 21. Project: Pipeline Relining ProgramComplete: OngoingCost: $787 millionBenefit: Extended life of major pipelines 22
  22. 22.  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 23
  23. 23. 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) 24

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