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CALAFCO Annual Conference 2011

CALAFCO Annual Conference 2011. EMWD Recycled Water Program Hossein Juybari, PE. Exploring New Boundaries. EMWD Overview. 555 square miles in southwest Southern California Population of 675,000 / 40% ultimate build-out Imports approximately 80% of water from SWP and CRA

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CALAFCO Annual Conference 2011

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  1. CALAFCO Annual Conference 2011 EMWD Recycled Water Program Hossein Juybari, PE Exploring New Boundaries

  2. EMWD Overview • 555 square miles in southwest Southern California • Population of 675,000 / 40% ultimate build-out • Imports approximately 80% of water from SWP and CRA • Strategy: Reduce dependency on imported water supplies

  3. Populations • Through the past decade EMWD’s service area was one of the fastest growing regions in CA • Populations has doubled since 1990 • The service Area population will be doubled again by 2035

  4. Imported 70,268 59% Local 49,781 41%

  5. EMWD’s Recycled Water Program History • EMWD began treating wastewater within its service area in the 1960’s • Originally, treated effluent was disposed of through on-site percolation/evaporation ponds. • In 1991, through a U.S. Bureau of Reclamation grant, EMWD began to develop a recycled water “backbone” to expand recycled water use Sun City Regional Water Reclamation Facility under construction in 1965

  6. EMWD’s Recycled Water Backbone • Four operating reclamation facilities that treat 45 million gallons per day (MGD) • Over 200 miles of pipeline • 20 pumping facilities • 16 MG of total service level storage (11 MG in construction) • More than 2 billion gallons of recycled water storage

  7. Recycled Water System Growing Pains • Over time, EMWD’s customer base grew • EMWD continued to expand the system to meet more demands • To better serve the customers and to increase the M & I customer base, the previous gravity system was pressurized: • New storage pond pumps • Upgrade existing pumps • Additional transmission lines • Pressure regulating valves • Service level storage • Booster stations

  8. EMWD’s Current Recycled Water Program • 2003; EMWD adopted a “Mandatory Use” Policy • 2007; Released draft process and procedures & standards and specifications • 2008; Began developing Retrofit Program • 2009; EMWD completed Recycled Water Strategic Plan with the main Objectives: • Maximize “beneficial use of recycled water” & “potable water offsets”. • 2010; Completed Recycled Water Master Plan • 2011; Completed Intergraded Resources Plan (IRP) Hemet Golf Club / Four Seasons HOA Retrofit

  9. EMWD Recycled Water Rate • Ag Recycled Water $90.25 Per AF • Ag Recycled Water (Demand) $249.25 • Non Ag Recycled Water $311.50 • Potable Water Rate –Irrigation $1180 • Potable Water Rate - Ag Users $1034

  10. EMWD Usage • Total Customer Use during 2010: 28,000 AF • Total Treated Flow = 46,500 AF • Total Potable Water Consumption = 104,000 AF • Currently 60% of Sewer water being used , but the goal is 100% utilization

  11. Score Cards • % of RW used to Wastewater • % of RW water to overall water consumption

  12. So, What Are the Trend for usage? • What % of wastewater (recycled) is being used globally? • U.S.A. = ~5% • Australia = 15% • Israel =70% • What % of wastewater (recycled) is being used nationally? • Florida = 40% • State of California = 15% SJVRWRF PVRWRF

  13. 2010 Usage by user class

  14. Usage History

  15. UWMP 2005 -2035 EMWD Water Demand (AFY) Note: Based on regional projections, wholesale agency information and includes compliance with the Water Conservation Act of 2009, SB x7-7 for EMWD retail demand

  16. Recycled Water Key Initiatives • Mandatory Use Policy • RW Strategic Plan • Integrated Resources Plan • RW Master Plan • HR30 / ARRA projects

  17. EMWD Strategic PlanAction Plan for a Project • Strategic Plan 2010: under Water Supply & Reliability • Strategic Goal: Provide a safe & reliable supply of Water, at reasonable cost. • Strategic Objective IV (Recycling): Maximize the Recycled Water use in an environmentally responsible manner • Tactics: Develop Strategies to achieve the highest beneficial use of Recycled Water • Action Plan: Develop strategies to advance an Indirect Potable Reuse (IPR) Program

  18. Recycled Water System Strategic PlanJune 2009 • Purpose of the Plan was to Identify Strategies to Meet District Goals • District Goals: • Achieve Zero Discharge • Maximize Potable Water Offset • Minimize Cost • Optimize Salt Balance

  19. Recycled Water System Strategic Plan Challenges • Managing Seasonal Variations in Demands • Highly Weather Dependent • Pursuing "Business As Usual“ Customers Will Not Allow District to Meet Its Goals Therefore, Need to Pursue Non-Traditional Demands (Special Projects)

  20. All IRP Water Supply Strategies Implemented by 2035 Local 54% Import 46%

  21. Challenges • Development Conditioning • Plan Check Process • Fair Share Analysis / Cost sharing • Recycled Water Guidelines • Supply and Demand Management

  22. Future Projects & Trends • Maximize the Recycled Water usage (100% utilization) • Integrate Recycled Water data • Optimized Recycled Water System • Recycled Water Storage Management Study

  23. Questions? All the water that ever was is…

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