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Water Purification Demonstration Projectwww.purewatersd.org
What you should know…             •   San Diego needs to develop local, reliable sources of                 water.        ...
Water Supply Challenges           •   Rising costs of imported water           •   Pumping restrictions           •   Popu...
City’s Water Supply                                     Recycled Water        Local Surface                      Conservat...
Upstream Wastewater Dischargeswww.purewatersd.org
What is being done…          • Water Conservation          • Groundwater Development          • Recycled Water          • ...
San Diego’s Water Reuse Program           Water Reuse Study - (complete)           Water Purification Demonstration Projec...
Project Components           • Operate 1 MGD facility           • San Vicente Reservoir study           • Define regulator...
Demonstration Project Concept
Click to edit Master title stylewww.purewatersd.org
Membrane-filtration: Step One                               • Hollow fiber with                                 holes in t...
Reverse Osmosis: Step Two                            • Same technology                              used by bottled       ...
Ultraviolet Light plus H2O2: Step Three                                                        • High-intensity light and ...
Water Purification: a proven technology           Orange County, California, 2008                                         ...
San Vicente Limnology and ReservoirDetention Study• Dam to be raised 117 feet    • After dam raise 242,000 acre-feet• Curr...
Project Benefits            • Local and sustainable supply of drinking water            • Increased use of recycled water ...
Independent Advisory Panel                   Panel includes:                   • Ph.D’s (9)                   • Experts in...
Independent Advisory Panel• George Tchobanoglous, Ph.D., P.E., UC Davis• David R. Schubert, Ph.D., Salk Institute for Biol...
Public Outreach & Education                                     • Speakers Bureau                                     • Co...
Advanced Water Purification Facility            Open for tours    Summer 2011 – Summer 2012      Register online at www.Pu...
Water Reliability Coalition                                              Friends of                                       ...
Turning the Tide2008...               …2011
What you should know…             •   San Diego needs to develop local, reliable sources of                 water.        ...
InformationVisit: www.purewatersd.orgEmail: purewatersd@sandiego.govCall: (619) 533-7572
Water Talks: City of San Diego IPR
Water Talks: City of San Diego IPR
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Water Talks: City of San Diego IPR

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Presentation made at Water Talks on September 13, 2011. Principal Water Resources Specialist at the city of San Diego, Cathy Pieroni, provided a presentation on the demonstration indirect potable reuse project currently underway.

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Transcript of "Water Talks: City of San Diego IPR"

  1. 1. Water Purification Demonstration Projectwww.purewatersd.org
  2. 2. What you should know… • San Diego needs to develop local, reliable sources of water. • Water Purification Demonstration Project is examining the use of advanced purified water. • The purified water goes through multiple advanced treatment steps. • No purified water will be added to the drinking water system during the Demonstration Project.www.purewatersd.org
  3. 3. Water Supply Challenges • Rising costs of imported water • Pumping restrictions • Population growth • Earthquakeswww.purewatersd.org
  4. 4. City’s Water Supply Recycled Water Local Surface Conservation 3% Water 7% 12% Imported Water 78% Average (2005-2010)www.purewatersd.org Source: City of SD Public Utilities Department 8/16/10
  5. 5. Upstream Wastewater Dischargeswww.purewatersd.org
  6. 6. What is being done… • Water Conservation • Groundwater Development • Recycled Water • The Water Reuse Programwww.purewatersd.org
  7. 7. San Diego’s Water Reuse Program Water Reuse Study - (complete) Water Purification Demonstration Projectwww.purewatersd.org
  8. 8. Project Components • Operate 1 MGD facility • San Vicente Reservoir study • Define regulatory requirements • Conduct energy and economic analysis • Public education and outreach Construction of the Advanced Water Purification Facility April 4, 2011 Outcomes • Validate treatment process • Gain regulatory approval • Evaluate cost • Public acceptancewww.purewatersd.org
  9. 9. Demonstration Project Concept
  10. 10. Click to edit Master title stylewww.purewatersd.org
  11. 11. Membrane-filtration: Step One • Hollow fiber with holes in the sides • Used to make baby food, purify medicines, fruit juices and more • Excellent pre-filter before reverse osmosiswww.purewatersd.org
  12. 12. Reverse Osmosis: Step Two • Same technology used by bottled water companies • Forces water under high pressure through sheets of plastic membrane • Demineralizes and purifies water
  13. 13. Ultraviolet Light plus H2O2: Step Three • High-intensity light and hydrogen peroxide • Creates advanced oxidation reaction, essentially destroys anything in the water Ultraviolet (UV) plus H2O2 Disinfectionwww.purewatersd.org
  14. 14. Water Purification: a proven technology Orange County, California, 2008 Fairfax County, Virginia, 1982www.purewatersd.org
  15. 15. San Vicente Limnology and ReservoirDetention Study• Dam to be raised 117 feet • After dam raise 242,000 acre-feet• Currently 90,000 acre-feet • Construction duration 2009 – 2013 • Augmentation would improve water quality
  16. 16. Project Benefits • Local and sustainable supply of drinking water • Increased use of recycled water • Decreased dependence on imported water • Less energy than imported water • Improved quality of reservoir water • Positive impact on environmentwww.purewatersd.org
  17. 17. Independent Advisory Panel Panel includes: • Ph.D’s (9) • Experts in water quality & treatment technology • Experts in regulatory issues • Local stakeholders • O. C. Groundwater Replenishment System management
  18. 18. Independent Advisory Panel• George Tchobanoglous, Ph.D., P.E., UC Davis• David R. Schubert, Ph.D., Salk Institute for Biological Studies• Richard J. Bull, Ph.D., Toxicologist, Mobull Consulting• Joseph A. Cotruvo, Ph.D., Joseph Cotruvo Associates• James Crook, Ph.D., P.E., Water Reuse• Richard Gersberg, Ph.D., Occupational & Environmental Health, SDSU• Sunny Jiang, Ph.D., Civil and Environmental Engineering, UC Irvine• Michael A. Anderson, Ph.D., Environmental Chemistry, UC Riverside• Audrey D. Levine, Ph.D., P.E., DEE, Drinking Water Research, U.S. EPA• Michael P. Wehner, Assistant General Manager, OC Water District
  19. 19. Public Outreach & Education • Speakers Bureau • Community Events • Facility Tourswww.purewatersd.org
  20. 20. Advanced Water Purification Facility Open for tours Summer 2011 – Summer 2012 Register online at www.PureWaterSD.org
  21. 21. Water Reliability Coalition Friends of Infrastructure• BIOCOM • San Diego and Imperial Counties Labor Council• Building Industry Association • San Diego Audubon Society• Building Owners and Managers Association • San Diego Coastkeeper• Citizens Coordinate for Century 3 • San Diego County Taxpayers Association• Coastal Environmental Rights Foundation • San Diego Regional Chamber of Commerce• Endangered Habitats League • San Diego Regional Economic Development Corporation• Environmental Health Coalition • San Diego River Park Foundation• Empower San Diego • Surfrider Foundation, San Diego Chapter• Friends of Infrastructure • Sustainability Alliance of Southern California• Industrial Environmental Association • Utility Consumers’ Action Network• National Association of Industrial and Office Properties
  22. 22. Turning the Tide2008... …2011
  23. 23. What you should know… • San Diego needs to develop local, reliable sources of water. • Water Purification Demonstration Project is examining the use of advanced purified water. • The purified water goes through multiple advanced treatment steps. • No purified water will be added to the drinking water system during the Demonstration Project.www.purewatersd.org
  24. 24. InformationVisit: www.purewatersd.orgEmail: purewatersd@sandiego.govCall: (619) 533-7572
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