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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
LADWP’s Long, Rich and Proactive Water
History Helped Transform the City of LA
LA’s Reliance on MWD Water Has Increased
7-Fold in the Past 30 Years
Using Less Water Than 40 Years Ago Despite
Population Increase of 1 Million
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
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
Centralized Stormwater Capture Projects
Distributed Stormwater Capture Projects
Elmer Avenue Retrofit
Before After
Cistern
Rain Barrel
Rain Garden
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
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
LA’s Water Reliability 2025 will Reduce
Dependency on Imported Water Supplies
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
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

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David pettijohn

  • 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
  • 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