1 EASTERN MUNICIPAL WATER DISTRICT Water Use Efficiency Master Plan Elizabeth Lovsted, PE Senior Civil Engineer January 16, 2016

2 Presentation Outline Project Overview Compliance Requirements Market Potential and Demand Drivers Implementation Strategy Next Steps

3 Water Use Efficiency Master Plan Scope of Work o Evaluate assumptions about conservation o Update water savings targets o Develop a plan of action Schedule o December 2014 – December 2015 Funding o $116,528 from Special Projects o $50,000 from USBR field services grant Consultant o Contracted with A & N Technical Services, Inc. to prepare plan

4 Short-Term vs. Long-Term Actions Plan development started in December 2014, before statewide mandatory reductions were in place Developed as a long-term Plan for improving efficiency through demand reduction With current statewide mandates in place, incorporate what we learn from implementing immediate short-term actions, which also have long-term benefits

5 Short-Term Actions Response to short-term Emergency Regulations: Implementing the Allocation-Based Tiered Rate and the Water Shortage Contingency Plan (currently Stage 4c) Focused outreach to high water using customers Eliminating irrigation of non-functional turf Revising variance process

6 Current Compliance Requirements Regulatory Agency or State Organization RequirementsApproachStatus SBx 7-7 (20x2020) Reduce per capita water use by 10% by 2015 Reduce per capita water use by 20% by Implement Active Water Use Efficiency Programs, Policy Initiatives, and Increase Recycled Water Supply. Current GPCD tracking below 2015 goal of CUWCC Reduce per capita water use by 18% by EMWD will use CUWCC’s new GPCD option, which offers a per capita methodology to track compliance. Current GPCD tracking well below target of 176 for AB 1420 Fulfill BMP commitments. Lines up with actions taken to meet CUWCC BMP compliance. On track. SWRCB Fulfill Drought Target of 28%. Water budget allocation reduction, program promotion, and general awareness. 19% reduction as of December 2015.

7 Demand Driver: Tiered Rates Customers with Tier 3 and 4 use have the potential for saving water Customers and Use in Excessive or Wasteful Tiers (July 2014 to May 2015, 11 Months) Average % of Customers with Use in Tiers 3 or % Average of the monthly percent of bills with use in T3 or T4, proxy for customers Average Number Customers with Use in Tiers 3 or 4 17,228 Average number of bills per month, proxy for number of customers Average % of Use in Tiers 3 or 46.4% Average of the monthly percent of use in T3 or T4 Sum of Use with Use in Tiers 3 or 4 (hcf) 1,483,442 Sum of T3 and T4 use for 11 most recent months Tier 3 and 4 Use/Year (hcf, 12 months) 1,618,300 Scaled to 12 months Tier 3 and 4 Use/Year per Customer (hcf, 12 months) 93.9 Use per year per customer, monthly average number of bills is proxy for customers

8 Demand Driver: Housing Construction

9 Demand Driver: Bathrooms per Home

10 Normalizing for Weather and Recession Eastern MWD Water Demand Calendar Year Actual Demand (GPCD) Effect of Weather on Water Demand (Percent) Demand Normalized for Weather (GPCD) Effect of Employment on Water Demand (Percent) Demand Normalized for Weather and Employment (GPCD) % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % Standard Deviation of % Effects+/- 3.76% +/- 2.52% 95% Confidence Interval+/- 7.4% +/- 4.9%

11 Actual vs. Normalized Demand

12 Water Conservation Tracking Tool Tracks passive and active programs Uses avoided cost model Tracks greenhouse gas reductions

13 Past Achieved Active WUE Savings

14 General Strategies Focus on Outdoor Water Use o Higher portion of demands and less impact on customers’ essential uses of water Support Customers with Actionable Water Savings Solutions o Specifically target customers that are over their allocation o Most significant potential savings Provide Incentive-Based and Information-Based Programs o Drive customers to act on their own “market transformation” Track USE o Meet governor’s mandate o Continue to stay well under 20 x 2020 GPCD goal

15 Plan Recommendations Continue Surveys as Foundational Programs o Home water use surveys o Large landscape surveys Provide Account Management Resources to Guide Customers Through Measure Implementation Modernize Data Collection, Tracking and Reporting o Most current programs are heavily manual o Better understand customer drivers and site conditions o Use data to develop new program and refine existing programs Improve Customer Reports and Interactions o More visuals and graphics o Constant electronic communication

16 Plan Recommendations, Cont. Continue to Implement Landscape and Irrigation Direct Install/Voucher programs o High-efficiency nozzles o Smart controllers Promote Regional rebates Utilize Grant Funding o Turf conversions o School gardens Offer “Last Call” Incentive for HETs Pilot New Technologies and Programs o Irrigation system repairs, drip irrigation, pressure regulation o Test new delivery methods for existing measures o Implement best programs

17 Range of Savings - Existing Programs Cost Effectiveness Annual Budget ($) Total Present Value Costs ($) Discounted Cumulative Water Savings (AF) Unit Cost ($/AF) $168,300 $791,3425,133 $154 $1,190,200 $5,596,28710,640 $526

18 Actions Going Forward Focus on Tiered Rate Revisions o “Tighten” indoor allocation and outdoor allocations (primarily older customers) o Collect information on non-tiered customers o Opportunities to improve variance process Phase Out Indoor Programs Continue Existing Outdoor Programs with Some Improvements o Better data collection and management o Improve survey program o Additional follow-up Implement New Programs o Drip replacement irrigation program Grant funding

19 Contact Information EASTERN MUNICIPAL WATER DISTRICT Elizabeth Lovsted, PE Senior Civil Engineer ext