1. Municipal and Industrial Conservation and Water Reuse Workgroup Elizabeth Lovsted Sr. Civil Engineer Urban Water Institute Annual Water Policy Conference August 14, 2014 www.emwd.org 1

2. Presentation www.emwd.org 2 Background Information Municipal and Industrial Conservation and Water Reuse Workgroup o Scope of Work o Preliminary Observations EMWD Case Studies

3. Background Information www.emwd.org 3

4. Overview of EMWD www.emwd.org 4 Established in 1950 Agency serving: o Water / wastewater / recycled o Wholesale and retail Population: 768,000 Member Agency: Metropolitan Water District of Southern California (MWD)

5. Potable (drinking water): Approx. 137,000 accounts Imported water from the Bay Delta and Colorado River Groundwater wells Menifee and Perris desalters Wastewater: Approx. 229,000 accounts 4 regional reclamation facilities Capacity: 63 million gallons/day (MGD) Recycled water: Approx. 300 accounts 35,850 AF sold in FY 2012/2013 One of the largest in California! o Agricultural/Irrigation: Approx. 120 accounts www.emwd.org 5 EMWD Services

6. EMWD 2013 Water Supply Portfolio www.emwd.org 6 Local 58,359 AF 42% Imported 81,631 AF 58%

7. M and I Conservation Workgroup www.emwd.org 7

8. Scope of Work www.emwd.org 8 Task 1:Review Basin Study to understand data and assumptions for demand, M&I conservation, and reuse Task 2: Discuss Next Steps process, workgroup objectives, roles, ground rules, draft scope of work, schedule Task 3:Quantify conservation and reuse savings to date within the Study Area a) Historical savings data from existing reports, studies, planning documents and other readily available information b) Data collection to focus on major metropolitan areas and large cities c) Data to be reported by region d) Estimate investments made in water use efficiency and reuse e) Verify assumptions for water use efficiency and reuse in Study

9. Scope of Work, cont. www.emwd.org 9 Task 4:Document successful conservation programs a) Provide supplemental qualitative and quantitative performance information on successful conservation and reuse programs that have been implemented within the Study Area and have potential to be expanded into other areas within Study Area b) Provide list of reports documenting successful conservation and reuse programs that have been implemented outside the Study Area and may have potential for implementation within Study Area

10. Scope of Work, cont. www.emwd.org 10 Task 5:Provide information on projected future water a) Quantitative data from existing and planned programs identified in current planning documents b) Evaluate future reuse opportunities, yield and costs c) Evaluate future conservation opportunities, yield and costs Task 6:Report on assessments of the impact of historical and future water savings on Colorado River demands Task 7:Identify Phase 2 activities, including any feasible and appropriate action steps

11. Preliminary Observations www.emwd.org 11 M and I water conservation and reuse are an important part of reducing the projected long-term imbalances between supply and demand in the Basin Study Area Growth in demand can be met through a combination of increased conservation and reuse and new supplies The magnitude of savings will depend on level of adoption Water providers have demonstrated the ability to reduce demand since 1990 The direct impact of M and I water conservation is uncertain and depends on economic, policy, legal, and environmental consideration

12. EMWD Case Studies www.emwd.org 12

13. Highlighted Water Conservation and Reuse Programs www.emwd.org 13 Over 30 programs o 5 metering/billing o 8 public education o 2 water loss o 6 residential indoor o 8 commercial, industrial and institutional o 8 outdoor landscaping o 6 reuse

14. Case Studies www.emwd.org 14 Highlight in moderate detail innovative programs Cover breadth of programs and implementation 2-page fact sheets to serve as appendix Highlighted programs to be referenced in main body of report

15. EMWD Case Studies www.emwd.org 15 Budget Based Tiered Rates o Metering and Billing High Efficiency Clothes Washer (Water/Energy Partnership) o Residential Indoor Public School Retrofit Program o Commercial, Industrial and Institutional

16. Budget Based Tiered Rated www.emwd.org 16 Water pricing structure designed to: o Provide each customer with an individualized allocation of water o Reduce excess water use by sending a strong price signal o Incentivize customers to stop wasteful water use Those who use water at the same level of efficiency pay the same rate per unit Those who waste water pay more than those who use resources efficiently Communicates the cost of “excessive and wasteful” use of water

17. Budget Based Tiered Rated, cont. www.emwd.org 17 Tier 1: Indoor Use $1.73/unit* o Budget = Number of Persons x 60 Gallons Per Day Within Allocation Tier 2: Outdoor Use$3.16/unit o Budget = Landscaped Area and Evapotranspiration Tier 3: Excessive$5.66/unit o Up to 50% use in excess of Indoor and Outdoor budgets Over-allocation Tier 4: Wasteful$10.36/unit — Over 50% in excess of Indoor and Outdoor budgets * One billing unit equals 100 cubic feet

18. Budget Based Tiered Rated, cont. www.emwd.org 18 Cost to implement varies o $0.8 to $3 million o Includes agencies billing software, budget development, consultant support, and customer support. o Cost per meter range from $20-$35 each 5-15% reduction in demand for implementing agencies

19. High Efficiency Clothes Washer Direct Install www.emwd.org 19 Partnership with Southern California Gas and Electric Installs high efficiency clothes washers for low income residential customers Grant funding through USBR Water And Energy Savings 1,700 washers installed $1.24 million cost o USBR o MWD o So Cal Gas o EMWD 57.8 Acre feet of water saved per year

20. Public School Retrofit Program www.emwd.org 20 Provides direct installation of water saving devices to school Goal of the program: o Save water o Encourage efficiency o Remove barriers for school participation $670,000 Project Cost o USBR o MWD o EMWD 206 Acre Feet of water per year saved

21. Conclusion www.emwd.org 21 Water conservation and reuse are an important part of meeting growing demand Future water saving will depend on a variety of future conditions Innovative and successful conservation depend on many elements, but can be used as model moving forward

22. Contact Information EASTERN MUNICIPAL WATER DISTRICT Elizabeth Lovsted Sr. Civil Engineer (951) 928-3777 ext. 4307 lovstede@emwd.org www.emwd.org 22