a local agency perspective
DESCRIPTION
ACC – OC Infrastructure Summit. May 30, 2013. A Local Agency Perspective. The Economics of the Bay Delta Conservation Plan (BDCP):. Background on IRWD IRWD’s water supply and system reliability Connecting the BDCP to IRWD What else is being done? Questions. Today’s Discussion. - PowerPoint PPT PresentationTRANSCRIPT
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A Local Agency Perspective
The Economics of the
Bay Delta Conservation Plan (BDCP):
ACC – OC Infrastructure Summit
May 30, 2013
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• Background on IRWD
• IRWD’s water supply and system reliability
• Connecting the BDCP to IRWD
• What else is being done?
• Questions
Today’s Discussion
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California Special District governed by a publicly-elected board.
IRWD customer base:• Residential population: 350,000• Daytime population: over 500,000• Service connections: 102,381
IRWD service area:• 181 square miles (20% of Orange County)• All or part of six cities and unincorporated county:
About IRWD
IrvineTustin
Orange
Lake ForestNewport Beach
Costa Mesa
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IRWD Services and System Statistics:
Potable Water: Four treatment plants, 25 wells, 1,500 miles of pipelines.
Wastewater: Nearly 1,000 miles of sewage collection pipelines.
Recycled Water: Two water recycling facilities (28.0 MGD + 5.5 MGD) and approximately 500 miles of recycled water pipelines.
Urban Runoff Treatment: The San Joaquin Marsh and 31 built and planned constructed wetland treatment sites.
Our Four Lines of Service
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IRWD’s Water Supply Portfolio and System Reliability
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Where Does Southern California get its water?
Local Supplies Groundwater & Recycling
Local SuppliesLA Aqueduct
Conservation
Colorado River Aqueduct700,000 AF
State WaterProject
Entitlement 2 Million AF
Transfers & Storage Groundwater Banking
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IRWD’s Historical Water Supply
Other11%
Clear Groundwa-ter
10%
Imported Water64%
Recycled Water15%
Water Supply by Type
1990 Supplies0
20000
40000
60000
80000
6780
46180
10400
7500
Acr
e-F
eet
per
Yea
r
IRWD water supply in 1990
Conversion: 1 acre-foot = 325,851 gallons = 1,233,482 liters
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Connecting the BDCP to IRWD
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IRWD and the BDCP
The BDCP will provide benefits to all of California.
Regional:
Local:
Statewide:
Industry, Agriculture,Homes, Environment
Water Quality,
Water Reliability
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What else is being done?
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1. Defers Met’s need to construct and operate new water supply projects;
2. Reduces region’s reliance on imported supplies; and
3. Improves supply diversity for local water agencies:
- Potable Water Supply Projects
- Recycled Water Program
- Water Use Efficiency
IRWD Projects with Met Funding
Regional Benefits from Met Funding Local Projects:
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• Dyer Road Well Field Seasonal Shift Program- Incentivized IRWD to pump wells during MWD peak usage periods- From 1988 through 2008, total LRP funding: $15 million
• Irvine Desalter Project Potable Treatment Plant- New local water supply: 63,000 acre-feet of treated groundwater- From 2006 through 2027, estimated LRP funding: $15 million
• Wells 21 and 22 Desalter Project- New local water supply: 121,000 acre-feet of treated groundwater- From 2012 through 2037, estimated max LRP funding: $30 million
Potable Water Supply Projects:
IRWD Projects with Met Funding
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IRWD Recycled Water Program
IRWD Projects with Met Funding
• Michelson Water Recycling Plant – LRP1- Assisted IRWD to develop RW production: 3 MGD to 13 MGD- From 1986 through 2011, 186,000 acre-feet of recycled water- Incentive at $154 per AF; total LRP Funding: $29 million
• IRWD Water Recycling Plants – LRP2- Assisted IRWD to develop RW production: 13 MGD to 18 MGD- From 2005 through 2030, 131,000 acre-feet of recycled water- Incentive at $117 per AF; estimated LRP funding: $15 million
Conversion: 1,000 AF per year = 0.9 MGD
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Water Use Efficiency Initiatives
IRWD Projects with Met Funding
• Met Incentives to IRWD from 2005 through 2012:- Residential Incentives: $1.3 million- Commercial Incentives: $3.1 million
• Met funding incentives based on Met’s avoided cost.- Incentive at $154 per AF- Funded through Met’s Water Stewardship Fund ($43 per AF)- Met incentives leveraged by IRWD at average of $225 per AF
• “Lifetime” Water Savings = 19,000 acre-feet
• On-going program.
Tactical Incentives• Indoor &
Outdoor Technologies
• Cost-Effective Programs
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IRWD Water Supply Reliabilityinto the Future
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Clear Ground- wa-
ter, 32%
Treated
Ground- wa-
ter, 18%
Recy-cled
Water; 24%
Other; 3%
Im-ported Water; 22%
* Excludes IRWD water banking(50,000 AF storage)
IRWD has a diverse, reliable water supply.
IRWD’s Water Supply Portfolio Today
1990 1998 2003 2006 2011 20350
20,000
40,000
60,000
80,000
100,000
120,000
Fiscal Year
Acr
e-fe
et p
er Y
ear
2011 Total Water Supply, By Type
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www.IRWD.com
IRWD Contact Information
Paul Cook, General Manager
phone: (949) 453-5590
email: [email protected]