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Eugene Water & Electric Board

Eugene Water & Electric Board. Jill Hoyenga, Water Management Services Supervisor. Eugene Water & Electric Board. Water Budget: A Key Customer Education Tool PNWS-AWWA Annual Conference Pre-Conference Seminar April 30, 2008. Definition of a Water Budget.

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Eugene Water & Electric Board

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  1. Eugene Water & Electric Board Jill Hoyenga, Water Management Services Supervisor

  2. Eugene Water & Electric Board Water Budget: A Key Customer Education Tool PNWS-AWWA Annual Conference Pre-Conference Seminar April 30, 2008

  3. Definition of a Water Budget • An estimate of how much water a customer “should” use • Most useful when compared to the customer’s actual use • Also called a water allocation

  4. Outdoor Water Budget • Most common type of water budget • Example of irrigation demand calculation: • Water one inch deep on 1000 sqft area equals 623 (624) gallons (134 cubic feet of water) • Percent of ET demand expressed as inches per time period (day, week, month) • Square footage of watered area

  5. Indoor Water Budget: Residential • Uses AWWARF Residential End Use Study or local equivalent • Example of indoor fixture calculation: • Inventory fixture count and usage • Multiply by number of units • Occupancy rates may vary per unit so a high/low range is most useful for multi-family • Be aware of multiple meters for multi-family

  6. Indoor Water Budget: CII • Might use AWWARF Commercial End Use Study or local equivalent • Example of indoor fixture calculation: • Inventory fixture count by type • Divide total use per day by number of employees • A high/low estimate is most useful • Seasonal, production, and other changes make these estimates very difficult

  7. Uses of a Water Budget • Customer Education • Sorting tool for program participation • Infrastructure planning and design • SDC calculations • System-wide differentiation of beneficial and non-beneficial use • Building a rate case • Curtailment planning

  8. Water Budget forCustomer Education • Outdoor water use education • Leak detection • Retrofit comparisons • Education foundation for possible water budget based water rates or curtailment

  9. Water Budget as aSorting Tool • Customer soliciting services that may not be needed • Water budget selection for potential program participants • Outdoor water conservation programs • Identify cooling load customers

  10. Water Budget forInfrastructure Planning • Meter sizing and SDC charges • Irrigation demand for individual service • Reservoir and main sizing • Avoid irrigation demand using up fire-flow capacity

  11. System-wide use of Water Budgets • Differentiate between beneficial and non-beneficial use (particularly outdoor water use) • Water budget by sector or customer class • More accurately assess the revenue impact of a successful conservation program • Build a case for water budget water rates • Build a water budget based curtailment plan

  12. Questions? Jill Hoyenga 541-984-4706 jill.hoyenga@eweb.eugene.or.us

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