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EMWD Recycled Water Program Hossein Juybari, PE Exploring New Boundaries.

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Presentation on theme: "EMWD Recycled Water Program Hossein Juybari, PE Exploring New Boundaries."— Presentation transcript:

1 EMWD Recycled Water Program Hossein Juybari, PE Exploring New Boundaries

2 EMWD Overview 555 square miles in southwest Southern California555 square miles in southwest Southern California Population of 675,000 / 40% ultimate build-outPopulation of 675,000 / 40% ultimate build-out Imports approximately 80% of water from SWP and CRAImports approximately 80% of water from SWP and CRA Strategy: Reduce dependency on imported water suppliesStrategy: Reduce dependency on imported water supplies

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

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

5 EMWDs Recycled Water Program History EMWD began treating wastewater within its service area in the 1960s EMWD began treating wastewater within its service area in the 1960s Originally, treated effluent was disposed of through on-site percolation/evaporation ponds. 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 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 EMWDs Recycled Water Backbone Four operating reclamation facilities that treat 45 million gallons per day (MGD) Four operating reclamation facilities that treat 45 million gallons per day (MGD) Over 200 miles of pipeline Over 200 miles of pipeline 20 pumping facilities 20 pumping facilities 16 MG of total service level storage (11 MG in construction) 16 MG of total service level storage (11 MG in construction) More than 2 billion gallons of recycled water storage More than 2 billion gallons of recycled water storage

7 Recycled Water System Growing Pains Over time, EMWDs customer base grew Over time, EMWDs customer base grew EMWD continued to expand the system to meet more demands 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: 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 EMWDs Current Recycled Water Program 2003; EMWD adopted a Mandatory Use Policy 2003; EMWD adopted a Mandatory Use Policy 2007; Released draft process and procedures & standards and specifications 2007; Released draft process and procedures & standards and specifications 2008; Began developing Retrofit Program 2008; Began developing Retrofit Program 2009; EMWD completed Recycled Water Strategic Plan with the main Objectives: 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 2010; Completed Recycled Water Master Plan 2011; Completed Intergraded Resources Plan (IRP) 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 $90.25 Per AF Ag Recycled Water (Demand) $ Ag Recycled Water (Demand) $ Non Ag Recycled Water $ Non Ag Recycled Water $ Potable Water Rate –Irrigation $1180 Potable Water Rate –Irrigation $1180 Potable Water Rate - Ag Users $1034 Potable Water Rate - Ag Users $1034

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

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

12 So, What Are the Trend for usage? What % of wastewater (recycled) is being used globally? What % of wastewater (recycled) is being used globally? –U.S.A. = ~5% –Australia = 15% –Israel =70% What % of wastewater (recycled) is being used nationally? 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 Usage Type AGRICULTURAL 12,64414,62213,69314,15019,43419,65218,16813,796 CONSTRUCTION ENVIRONMENTAL1,8751,3772,0271,2322,3933,0682,8051,999 GOLF COURSE1,7951,9832,4962,8573,3353,0162,2972,019 IN LIEU4,6304,785 LANDSCAPE8051,0911,1051,3431,5251,6462,0412,022 M & I ,6502,949 WHOLESALE3,6504, Grand Total20,91424,20720,43421,40627,73927,99432,53628,246

15 UWMP 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 Mandatory Use Policy RW Strategic Plan RW Strategic Plan Integrated Resources Plan Integrated Resources Plan RW Master Plan RW Master Plan HR30 / ARRA projects HR30 / ARRA projects

17 EMWD Strategic Plan Action Plan for a Project Strategic Plan 2010: under Water Supply & Reliability 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 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 Action Plan: Develop strategies to advance an Indirect Potable Reuse (IPR) Program

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

19 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) Recycled Water System Strategic Plan

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

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

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

23 All the water that ever was is… Questions?


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