orange county’s water story: regional water issues and the import supply
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Orange County’s Water Story: Regional Water Issues and the Import Supply. Stan Sprague General Manager Municipal Water District of Orange County Santiago Canyon College Managerial Issues Class. Chapter 1. Water supply development in Orange County. Once upon a time. - PowerPoint PPT PresentationTRANSCRIPT
March 21, 2003
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Orange County’s Water Story:
Regional Water Issues and the Import Supply
Stan SpragueGeneral Manager
Municipal Water District of Orange County
Santiago Canyon College Managerial Issues Class
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Chapter 1
Once upon a time...
Water supply development in Orange County
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...at the turn of the last century,
Early settlements near surface water streams
Later development depended on groundwater
By turn of the century, settlers were outpacing nature’s ability to replenish
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…LA turns to Owens Valley
Development of L.A. Aqueduct
Access for others came at the price of annexation to Los Angeles
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Others turn to the
Colorado...
Metropolitan Water District formed in 1928 to provide imported water to Southern California• Anaheim, Santa Ana, Fullerton were original
members• Coastal MWD formed in 1941• MWD of Orange County formed in 1951
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Meanwhile, Orange County shores up rights on the
Santa Ana River Orange County Water District (OCWD)
formed in 1933 to file lawsuit to litigate rights vs. upstream diverters
Availability of import water leads to agency taking preeminent role in groundwater management
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Eventually, we all look north
SWP authorized by voters in 1960
First water delivered in early ‘70s
Contractually agreed to 2 MAF/year to Southern California
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Local Supplies Local Supplies Groundwater & RecyclingGroundwater & Recycling
Where Southern CaliforniaWhere Southern CaliforniaGets its Water TodayGets its Water Today
Local SuppliesLocal SuppliesLA AqueductLA Aqueduct
Conservation Conservation
Colorado River Colorado River AqueductAqueductSWP SWP
Entitlement Entitlement
Transfers & StorageTransfers & Storage
3
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Chapter Two
Who is the Municipal Water District of Orange County?
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MWD of Orange County is...
Wholesale water supplier for Orange County Governed by 7-member elected board 30 retail agencies Among the largest of Metropolitan’s member
agencies Service area of 600 square miles Service area population of 2 million Four (4) directors appointed to Metropolitan
board
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MWD of Orange Countyexists to...
Coordinate and plan local water management programs in Orange County
Secure a reliable supply of imported water
Represent local retail agencies that provide water directly to homes and businesses
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MWD of Orange Countyas Planner…
Initiated and Manages South Orange County Reliability Study• Will make recommendations for both system
and supply reliability improvements• Implementation will be cooperative effort
Analyzes data and trends and coordinates projects and programs with retail providers throughout the county
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MWD of Orange Countyas Advocate…
Represents water agencies and cities Influences and helps develop policies
• at Metropolitan• at local government level• at State & Federal levels
Works with other Orange County water providers
Helps to secure funding for local agency projects
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MWD of Orange Countyas Service Provider…
Water-Use Efficiency Programs School Education Water Emergency Response Orange
County (WEROC) Water-related legislative tracking, analysis
and advocacy
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Chapter Three
Traditional Imported Sources Challenged
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Our County’s Supplies
Orange County depends on imported water for almost half of its total supply• 48% groundwater• 46% imported through Metropolitan from
Colorado River Aqueduct and State Water Project (Northern California)
• 4% recycled water• 2% local surface water
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Challenges for Orange County’s traditional
imported water sources... Questions about water rights and
surplus availability Increasing environmental regulations
and restrictions Water quality concerns, i.e. impacts of
salinity and organic compounds require greater treatment levels, and hamper recycling and groundwater uses
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Colorado River issues Metropolitan has high priority entitlement to
approximately 700,000 AF Additional 500,000 AF annually comes from
surpluses Arizona & Nevada now taking full shares,
other states wary, drought conditions continue to worsen
Interior Secretary declares no surplus water in 2003
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Immediate concerns …
California’s inability to agree to a plan to reduce its take of surplus water over 15 years
Immediate cutbacks on surplus supplies eliminated “soft landing” option
Southern California will now only receive an 800,000 AF allocation in 2003
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Long-term concerns …
Over allocation Growth in other basin states Native American lawsuits Mexico Water quality concerns
• Perchlorate• Moab tailings• Salinity
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Challenges to Northern
California water San Francisco Bay/
Sacramento-San Joaquin River Delta
• Hub of State’s water system• Degraded ecosystem• Poor water quality• Supply impacted by endangered species• Early 90s drought, regulatory actions create
crisis
StateWaterProject
Los Angeles Aqueduct
Sacramento
Colorado River Aqueduct
San Francisco
Los Angeles
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Challenges to Northern California water
Struggle is to maintain what we have Historical annual supplies to exporters
from the Bay-Delta have been cut by 25% due to federal actions
Future regulatory actions threaten to cut supplies by another 25%
This year, State can only promise 45% (approximately 900,000 AF)
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CALFED Bay-Delta Program
CALFED Bay-Delta Program to the rescue• Joint state-federal consortium formed in 1994
• California Bay-Delta Authority created in January 2003
Collaborative, non-regulatory process to fix problems in the Delta
Implementation of Record of Decision Reduce conflict among stakeholders
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Endangered Species ActProtected Species in the Delta
Endangered Species ActProtected Species in the Delta
Delta SmeltDelta Smelt1993 - Threatened1993 - ThreatenedDelta SmeltDelta Smelt1993 - Threatened1993 - Threatened
Sacramento SplittailSacramento Splittail1999 - Threatened1999 - ThreatenedSacramento SplittailSacramento Splittail1999 - Threatened1999 - Threatened
SteelheadSteelhead1998 - Threatened1998 - ThreatenedSteelheadSteelhead1998 - Threatened1998 - Threatened
1989 - Winter-Run Threatened1989 - Winter-Run Threatened
1994 - Winter-Run Endangered1994 - Winter-Run Endangered
1999 - Spring-Run Threatened1999 - Spring-Run Threatened
1989 - Winter-Run Threatened1989 - Winter-Run Threatened
1994 - Winter-Run Endangered1994 - Winter-Run Endangered
1999 - Spring-Run Threatened1999 - Spring-Run Threatened
Chinook SalmonChinook SalmonChinook SalmonChinook Salmon
Green SturgeonGreen Sturgeon2001 - Petitioned for listing2001 - Petitioned for listingGreen SturgeonGreen Sturgeon2001 - Petitioned for listing2001 - Petitioned for listing
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CALFED’s CALFED’s Ecosystem Ecosystem
AccomplishmentsAccomplishments
CALFED’s CALFED’s Ecosystem Ecosystem
AccomplishmentsAccomplishments
Status: 382 new projects382 new projects
$398 million$398 million
100,000 acres new wetlands100,000 acres new wetlands
17 new fish screens17 new fish screens
10 diversion dams removed10 diversion dams removed
Status: 382 new projects382 new projects
$398 million$398 million
100,000 acres new wetlands100,000 acres new wetlands
17 new fish screens17 new fish screens
10 diversion dams removed10 diversion dams removed
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0
200
400
600
800
1,000
1,200
1982 1984 1986 1988 1990 1992 1994 1996 1998 2000
Delta Smelt Fall Midwater Trawl IndexDelta SmeltDelta Smelt
Nearing Recovery!Nearing Recovery!
Environmental Gains Fishery Recovery – It’s Working!
Environmental Gains Fishery Recovery – It’s Working!
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# of
Fish
5,000
10,000
15,000
20,000
1981 20011986 1991 1996
Dam removed
New fish ladder
3 new fish screens & ladders3 dams removed
Environmental Gains Fishery Recovery – It’s Working!
Environmental Gains Fishery Recovery – It’s Working!
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0
1,000
2,000
3,000
4,000
5,000
6,000
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
Winter Run Chinook Salmon Adult Female Spawner Escapement
Current take limit is 15 times higher than initiallyCurrent take limit is 15 times higher than initially
Winter-Run Chinook SalmonWinter-Run Chinook Salmon
Environmental Gains Fishery Recovery – It’s Working!
Environmental Gains Fishery Recovery – It’s Working!
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What CALFED could mean to
Orange County’s future Hope for some long-term regional relief
• Improved water quality• More certainty = Better local resource
management and planning
Expansion of local projects• CALFED won’t necessarily result in more water • Limited imported supplies means local agency
projects will become increasingly critical
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Chapter Four
The Local Story
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Where does this leave us?
Current total demand on Metropolitan is 2.0 MAF per year
Expected to marginally increase over next 10 years
Supply reliability to So. Cal. projected to be fairly stable over next 10 years (if no surprises)
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Local reliability issues emerge
South County - 500,000 residents - depend on two major pipelines and single treatment plant for 90% of their water service
One of two main MWD pipelines feeding South County damaged in December 1999
OCWD proposes lowering pumping percentage to deal with overdraft of groundwater basin
Reliability of the water supply and delivery network is a top priority for all
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Orange County’s Population Growth
North and SouthPopulation (millions)1990: 1.892000: 2.182010: 2.302020: 2.36
NORTH
20-Year Growth: 0.18 (8%)
SOUTH
Population (millions)1990: 0.512000: 0.682010: 0.792020: 0.87
20-Year Growth:
0.19 (28%)
TOTAL
20-Year Growth
0.37 million (13%)
Newport Beach
Tustin
Rancho Santa Margarita
Anaheim
Fullerton
Santa Ana
Huntington BeachIrvine
Laguna Niguel
San Clemente
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Orange County’s Water Consumption
North and SouthWater Use (acre-feet)2002: 549,0002025: 634,000Additional Demand: 85,000 (15%)
NORTH
SOUTHWater Use (acre-feet)2002: 134,0002025: 180,000Additional Demand: 46,000 (34%)
TOTAL O.C.
Additional Demand
131,000 (19%)
Tustin
Rancho Santa Margarita
Anaheim
Fullerton
Santa Ana
Huntington BeachIrvine
Laguna Niguel
San Clemente
Newport Beach
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Where will additional supplies come from?
Santa Ana River/Groundwater Basin Groundwater Replenishment System
(GWRS) Metropolitan Import / Water Transfers Water Use Efficiency Water Recycling Colored water treatment (MCWD, IRWD) Other local supplies Ocean desalination
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Orange County Reliability Study
Started looking at system & supply reliability • Focus on South Orange County
How to meet demands with major facility/system outages Evaluate alternative supply options, including ocean
desalination
Second Phase to be completed July 2003• Highlights projects/programs for system and supply
reliability Ocean Desalination Central Pool Augmentation Regional Storage Water Use Efficiency Expanded interconnections
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Where are we headed?Water Reclamation:
•Dual plumbing systems (IRWD)
• Expanding usage from agricultural to urban
• Irrigation of medians, open space, etc.
• Brackish water desalination
•Upstream Santa Ana River Watershed
• Irvine Ranch Water District
• City of Tustin
• San Juan Basin
• South Coast Water District
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What have we been doing?
Water Use Efficiency:
•$6-7 million spent on WUE programs annually
•Collaborative partnerships between:
•MWDOC, OCWD, OCSD, MWD & Local retail agencies
•U.S. Bureau of Reclamation & EPA
•County of Orange
•State of California
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What have we been doing?
Water Use Efficiency:•300,000 ULFT toilets have been installed (10,000 AF/year savings)
•270,000 showerheads have been installed (1,500 AF/year savings)
•3,250 clothes washers have been installed (43 AF/year savings)
•Computer controlled irrigation system retrofits (8,500 AF/year savings)
•Weather Based Controllers (Estimated 37-57 GPD savings)
•5,000 controllers will be installed beginning in summer 2003
•Funding through Proposition 13, Metropolitan and local agencies
•Overall WUE savings = 10-15%
*Savings based on lifespan of fixtures/controllers
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What have we been doing?
Water Use Efficiency:
•Industrial Water Use•MWD overseeing rebate/retrofit programs ($500,000/year)
•Studies needed to determine how to recapture industrial processed water for reuse (cooling towers, recycling systems in die plants, etc.)
•Landscape Performance Certification Program•Develop landscape irrigation budgets for more than 12,000 landscape meters
•Technical workshops offered
•Annual water savings of 12,000–24,000 AF ($5.4–$10.8 million)
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Ocean Desalinationin Orange County
Pre-development work for Ocean Desalination Plant in Dana Point• Submitted to Metropolitan on June 28, 2002
Poseidon Ocean Desalination Plant in Huntington Beach - 50 MGD• EIR is being completed by HB• MWDOC is assisting two of its agencies, Santa
Margarita WD and Southern California WC with implementation of necessary agreements to access water
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Struggle to maintain current imported supply means we must make the most of what we have
Local options: • Water Recycling• Water Transfers• Conjunctive Use• Water Conservation• Desalination
Local delivery network must be reliable
Coming full circle
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Questions?
Stan Sprague(714) 963-3058