1 / 48

Orange County’s Water Story: Regional Water Issues and the Import Supply

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.

niveditha
Télécharger la présentation

Orange County’s Water Story: Regional Water Issues and the Import Supply

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 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

  2. Chapter 1 Water supply development in Orange County Once upon a time...

  3. ...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

  4. …LA turns to Owens Valley • Development of L.A. Aqueduct • Access for others came at the price of annexation to Los Angeles

  5. 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

  6. 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

  7. 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

  8. Where Southern CaliforniaGets its Water Today Transfers & Storage Local Supplies LA Aqueduct Colorado River Aqueduct SWP Entitlement Local Supplies Groundwater & Recycling Conservation 3

  9. Chapter Two Who is the Municipal Water District of Orange County?

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. Chapter Three Traditional Imported Sources Challenged

  16. 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

  17. 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

  18. 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

  19. 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

  20. Long-term concerns … • Over allocation • Growth in other basin states • Native American lawsuits • Mexico • Water quality concerns • Perchlorate • Moab tailings • Salinity

  21. Challenges to Northern California water State Water Project • 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 Sacramento San Francisco Los Angeles Aqueduct Colorado River Aqueduct Los Angeles

  22. 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)

  23. 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

  24. Chinook Salmon 1989 - Winter-Run Threatened 1994 - Winter-Run Endangered 1999 - Spring-Run Threatened Steelhead 1998 - Threatened Sacramento Splittail 1999 - Threatened Green Sturgeon 2001 - Petitioned for listing Endangered Species Act Protected Species in the Delta Delta Smelt 1993 - Threatened

  25. CALFED’s Ecosystem Accomplishments • Status: • 382 new projects • $398 million • 100,000 acres new wetlands • 17 new fish screens • 10 diversion dams removed

  26. Delta Smelt Nearing Recovery! Environmental Gains Fishery Recovery – It’s Working! Delta Smelt Fall Midwater Trawl Index

  27. New fish ladder Dam removed Environmental Gains Fishery Recovery – It’s Working! 20,000 Spring-run Chinook Salmon -- Butte Creek 15,000 3 new fish screens & ladders 3 dams removed # of Fish 10,000 5,000 1981 1986 1991 1996 2001

  28. Winter Run Chinook Salmon Adult Female Spawner Escapement Winter-Run Chinook Salmon Current take limit is 15 times higher than initially Environmental Gains Fishery Recovery – It’s Working!

  29. What CALFED could mean toOrange County’s future • Hope for some long-term regional relief • Improved water quality • More certainty = Better local resource managementand planning • Expansion of local projects • CALFED won’t necessarily result in more water • Limited imported supplies means local agency projects will become increasingly critical

  30. Chapter Four The Local Story

  31. 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)

  32. 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

  33. Orange County’s Population GrowthNorth and South NORTH Population (millions) 1990: 1.89 2000: 2.18 2010: 2.30 2020: 2.36 Fullerton Anaheim Tustin SOUTH Santa Ana Population (millions) 1990: 0.51 2000: 0.68 2010: 0.79 2020: 0.87 20-Year Growth: 0.18 (8%) Rancho Santa Margarita Irvine Huntington Beach TOTAL 20-Year Growth 0.37 million (13%) Newport Beach 20-Year Growth: 0.19 (28%) Laguna Niguel San Clemente

  34. Orange County’s Water ConsumptionNorth and South NORTH Water Use (acre-feet) 2002: 549,000 2025: 634,000 Additional Demand: 85,000 (15%) Fullerton Anaheim Tustin Santa Ana Rancho Santa Margarita Irvine Huntington Beach SOUTH Water Use (acre-feet) 2002: 134,000 2025: 180,000 Additional Demand: 46,000 (34%) Newport Beach TOTAL O.C. Additional Demand 131,000 (19%) Laguna Niguel San Clemente

  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  40. 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)

  41. 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

  42. Coming full circle • 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

  43. Questions? Stan Sprague(714) 963-3058

More Related