west basin municipal water district
TRANSCRIPT
WEST BASINMunicipal Water District
www.westbasin.org
Scott Houston, PresidentTuesday, December 10, 2019
China Environment Forum: Closing the Loop on Wastewater in China and the United States
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Provide a safe and reliable supply of high-quality water to the communities we serve.
Mission
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• 185 sq. miles• 1 million residents• 17 cities
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REDONDO BEACH
U N I T E D S TAT E S
Upper Otay Reservoir
San Vicente Reservoir
SweetwaterSAN DIEGO Reservoir
OCEANSIDE
ESCONDIDO
M E X I C O
Lower Otay Reservoir
NEWPORT BEACH
CO L O R A D O
LAGUNA BEACH
DANA POINT
ANAHEIM
SANTA ANA
LAGUNA HILLS
CHINO
FULLERTON
OXNARD
LOS ANGELES
ARLETA
VAN NUYS
SAN FERNANDO
SAN MARINO
BURBAN
K
FOOTHIL
L
GLENDALE PASADEN
A
CANOGA PARK
THOUSAND OAKS
CAMARILLO
SIMI VALLEY
ONTARIO
EASTERN
MUNICIPAL
WATER DISTRICT
WESTERN
MUNICIPAL
WATER DISTRICT
INLAND EMPIRE UTILITIE
S AGENC
Y
POMONA
THREE VALLE
YS MWD
MUNICIPAL WATER DISTRICT
OF ORANGE COUNTY
IRVINE
SAN DIEGO COUNTY WATER
AUTHORITY
MWD
RIVER
Silverwood Lake
Lake Perris
LAKE ELSINORE
Lake Skinner
Diamond Valley Lake
Olivenhain Reservoir
Garvey
Reservoir
Los Angeles Reservoir
SWP EAST BRANCH
Inland Feeder Project
Foothill Feeder
SkinnerWater Treatment Plant
JensenWater Treatment Plant
Castaic Lake
SWP WEST BRANCH
Pyramid Lake
COVINA
UPPER SAN GABRIEL
VALLEY MWD
Lake Mathews
DiemerWater Treatment Plant
Mills Filtration
Plant
RIVERSIDE
SANTA MONICA
BEVERLY HILLS
TORRAN
CE
COMPTON
CALLEGUAS MWD
LAS VIRGENES MWD
MALIBU
LOS ANGELES
WEST BASIN MWD
WEST
SOUTHGATE
CENTRALBASIN MWD
LONG BEACH
CLEVELAND
NATIONAL
FOREST
BASIN
MWDPalos Verdes
Reservoir
AQUEDUCT
Live OakWeymouth
Res.
Water Treatment Plant
LEGEND
Department of Water Resources’ California Aqueduct Metropolitan's Colorado River Aqueduct
Water Treatment Plants
MWD Member Agencies
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• Northern and Central California
• Sierra Nevada Watershed
• Arizona and beyond
Where Does CRAImported Water Come From?
Where Does MWD Imported Water Come From?
WEST BASIN MWD
• Northern and Central California
• Sierra Nevada Watershed
• Arizona and beyond
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Where Does Southern California Water Come From?
Up to 60%water supply for nearly 20 million
people
444 MileAqueduct
242 MileAqueduct
233 MileAqueduct
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Sierra Nevada
Mountains
Lake Oroville
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West Basin Water Supply…
Local Groundwater Colorado River Aqueduct California Aqueduct (State Water Project)
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Water Supply Diversification Over the Years
2019
Pre-1947
1990
Sources
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Climate Change Challenges
Droughts Extreme RecordTemperatures
Wildfires
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Competing Demands
Agriculture UrbanEnvironment
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Other Challenges
Earthquakes Infrastructure
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Developing a Local, Publicly Controlled Water Supply
This program brings new emphasis to West Basin’s commitment to protecting, securing and diversifying its water supply while continuing its history of innovation and industry leadership.
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Future Water Reliability Through Supply Diversification
Projected2030
Conservation
A California Way of Life
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Conservation Programs
Free Rain Barrels Grass Replacement Rebates
Landscape Surveys& Plant Resources
Low-Flush toilets Water-EfficiencyDevice Rebates
Ocean Friendly Demonstration Gardens
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• Remove your grass and replace it with a drought-tolerant landscape
• $3 or more / square foot rebate
• Includes $1 from West Basin
• Visit Metropolitan Water District’s bewaterwise.com
• West Basin Grass Replacement Class Series
Water Recycling
Diversifying the water supply portfolio
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West Basin’s Recycled Water Program History
1986-1992: 7-year severe drought in California, one of the longest in its history
1989: 10 million people under drought-induced water rationing or conservation programs
Created need for a new, local, drought-proof water supply
What was West Basin’s response?
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Answer: Recycled Water
West Basin had a large potential recycled water customer base, but nothing to recycle…
• 1991: West Basin Board policy decision to develop a fit for purpose recycled water program
– Agreement with City of Los Angeles to purchase secondary effluent
• 1992-1994: West Basin buys land and constructs recycled water infrastructure
• 1995: West Basin water recycling facilities complete
– 5 recycling facilities and dedicated distribution system
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Multiple Stakeholders Involved
Why are partnerships important?• West Basin is a wholesaler of
Potable water• West Basin does not collect or
treat sewage• Source water for recycled water
program needed to be secured
How did we begin?• Agreement to purchase treated
sewage from City of Los Angeles Hyperion Plant – finalized in 1991
• Secured real estate for infrastructure
• Evaluated funding sources• Secured operations expertise –
public/private/partnerships• Secured agreements with recycled
water customers• Engaged regulators/
environmental community• Public outreach to community
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Major Funding Sources
• U.S. Bureau of Reclamation
• U.S. Army Corps of Engineers
• Department of Water Resources
• Metropolitan Water District of Southern California
• Private Funding
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Major Funding Partners for Recycled Water Program
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Recycled Water Program Key Statistics
• 40 million gallons per day produced
• More than 100 miles of distribution pipeline
• More than 400 connections
• Conserves enough drinking water for 135,000 households for a year
The Edward C. Little Water Recycling Facility – El Segundo, CA
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Recycled Water Uses
Irrigation WaterTertiary treated water filtered and disinfected for industrial and irrigation use.
Cooling Tower WaterAmmonia removed for industrial cooling tower use.
Low-Pressure Boiler Feed WaterMembrane filtration and reverse osmosis treatment.
High-Pressure Boiler Feed WaterMembrane filtration and two passes through reverse osmosis membranes.
Groundwater Replenishment WaterMembrane filtration, reverse osmosis membrane treatment, and disinfection for use in a barrier against seawater intrusion.
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5 “Designer” Waters
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Recycled Water Distribution System
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Recycled Water Partners
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Seawater Barrier Partnership Chain
Source Water Supply-LA SAN-LADWP
Operations Partners-Suez
-LA County Department of Public Works
-Cal Water Service
Customer-WRD
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Water Recycling
West Basin has saved enough drinking water for roughly 7.4 million people for one year!
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Water Recycling Program Impacts
Ocean Water DesalinationExploring New Local Supply Alternatives
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• Responsible research and testing since 2000
• Could provide approx. 10% of future drinking water supply
• Drought-resilient and regulated supply of drinking water
• Environmental Impact Report, CEQA Process
Exploring Ocean Water Desalination
West Basin @WestBasin
Connect with us
www.westbasin.org
West Basin Municipal Water District
@WestBasin
PRESIDENT SCOTT [email protected]