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David pettijohn

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  • 1. LA’s Water Reliability 2025 Securing a high quality, sustainable local water supply September 26, 2013 LA’s Water Reliability 2025 One Water Leadership Summit
  • 2. LADWP’s Long, Rich and Proactive Water History Helped Transform the City of LA
  • 3. LA’s Reliance on MWD Water Has Increased 7-Fold in the Past 30 Years
  • 4. Using Less Water Than 40 Years Ago Despite Population Increase of 1 Million
  • 5. New Challenges Require Continued Proactive Planning by LADWP Local Groundwater Contamination & Basin Urbanization Threats to Imported Water -Environmental -Competing Demands -Climate Change Rising MWD Water Costs
  • 6. LA’s Water Reliability 2025 is Combination of Two Important LADWP Initiatives + = SFB Groundwater Remediation Program Ensuring safe drinking water that meets all regulations Local Water Supply Program Securing new local water supplies LA’s Water Reliability 2025
  • 7. Centralized Stormwater Capture Projects
  • 8. Distributed Stormwater Capture Projects Elmer Avenue Retrofit Before After Cistern Rain Barrel Rain Garden
  • 9. Stormwater Capture Master Plan • Evaluate existing stormwater capture facilities and projects • Quantify maximum stormwater capture potential • Provide potential strategies to increase stormwater capture • Recommend stormwater capture projects, programs, policies, and incentives • Determine the economic mix of centralized vs distributed stormwater capture projects
  • 10. Relationship of Stormwater Capture Master Plan to Other Efforts Stormwater Capture Master Plan Detailed Master Plans & Studies Identifies solutions and estimates costs, and are conducted as needed Urban Water Management Plan Required by law every 5 years, and must take a 25-year look into the future Input Input LA’s Water Reliability 2025 Summarizes all water initiatives and develops overall timing and impacts, and will be updated every year
  • 11. LA’s Water Reliability 2025 will Reduce Dependency on Imported Water Supplies
  • 12. Summary of Local Water Supplies and Cost Program Component Total Capital Costs (Billions, 2012 Dollars) Water Yield (Acre-Feet/Yr) Stormwater Capture Centralized Recharge $0.34 54,788 Distributed Harvesting $0.26 8,159 Water Conservation $0.43 55,016 Reuse Groundwater Replenishment $0.42 30,000 Non-Potable Reuse $0.26 15,219 Total $1.7 163,182 SFB Groundwater Remediation Program $0.6 - $0.9 92,000
  • 13. Summary of Benefits from Overall Program Improved Reliability During Droughts, Regulatory Restrictions and Climate Change Net Present Value Benefit of over $2 Billion for Local Water Supply Improved Water Quality of Groundwater & Receiving Waters Increased Local Societal Benefits, such as Job Creation, More Green Space