Setting Appropriate, Achievable Water Use Efficiency WUE Goals

1
Setting Appropriate, Achievable Water Use
Efficiency (WUE) Goals
Kelly ORourke June 5, 2007
2
Goals of This Presentation

• Make sure you understand the goal-related
  requirements.
• Get you comfortable with establishing your goals.

3
Presentation Outline

• Part 1 Overview of the Goal Requirements
• Part 2 Develop an Appropriate Goal
• Link the goal to conservation drivers
• Ensure the goal is achievable
• Connect the conservation program to the goal
• Quantify the goal
• Determine an appropriate tracking method
• Part 3 Meet the Public Process Requirements

4

• Part 1
• Overview of the Goal Requirements

5
Seven Rule Requirements

• Meter all Sources and Service Connections
• Data Collection
• Distribution System Leakage 10 or Less
• Goal Established Publicly by January 2008
• WUE Program Implementing or Evaluating 1-12
  Measures (depending on connections)
• Demand Forecast Reflecting WUE Program
• Annual Performance Reports

6
Ten Goal Requirements (WAC 246-290-830)

• Determined by the Municipal Water Supplier (not
  DOH) (1)
• Set by January 22, 2008 and re-established every
  6 yrs (17)
• Established using a public process (4)
• Consider water supply characteristics (6a)
• Measurable in terms of reduced or maintained
  water production or usage (6b)

7
Ten Goal Requirements (WAC 246-290-830)
(continued)

• Can be expressed on per capita, per connection,
  total system, or other basis (6b)
• Schedule for implementing measures and achieving
  goals (6cd)
• Can be modified anytime, but must use public
  process (8)
• If goal is not being met, must modify WUE program
  (or modify goal) (9)
• Report on annually to DOH and customers

8

• Part 2
• Develop an Appropriate Goal

9
Link the Goal to Conservation Drivers

• Typical Conservation Drivers
• 1. Meet regulatory requirements
• 2. Demonstrate stewardship
• 3. Decrease operating costs
• 4. Defer/avoid capital improvements
• 5a. Obtain additional supply (traditional supply
  avail.)
• 5b. Obtain additional supply (traditional supply
  not avail)

10
Driver 1 Meet Regulatory Requirements

• Goal Framework
• Implement or evaluate required minimum number of
  measures, choosing low cost measures, within
  reasonable budget.

11
Driver 2 Demonstrate Stewardship

• Goal Framework
• Implement more measures than the minimum required
  by DOH, within a reasonable budget level.
• or
• Implement the minimum number of measures, but at
  a higher implementation intensity.

12
Driver 3 Decrease Operating Costs

• Goal Framework
• Implement any conservation that is more
  cost-effective than the variable cost of
  supplying water.

13
Driver 4 Defer/Avoid Capital Improvements

• Goal Framework
• Implement the amount of conservation necessary to
  obtain the savings necessary to defer capital
  improvements.

14
Driver 5a Obtain Additional Supply(Traditional
Supply Available)

• Goal Framework
• Implement any conservation that is more
  cost-effective than the cost of developing new
  traditional supply.

15
Driver 5b Obtain Additional Supply (Traditional
Supply Not Available)

• Goal Framework
• Implement all measures necessary (chosen in order
  of cost-effectiveness) to obtain the amount of
  supply needed.

16
Ensure Goal is Achievable and Connect the Program
to the Goal

• Questions
• What are possible conservation measures?
• How much do they save?
• How much do they cost?
• What is their cost-effectiveness?
• How much savings potential exists in my service
  area?
• Does the associated price tag fit my budget?

17
Measure Analysis Options

• Comprehensive conservation potential assessment
  (CPA)
• Limited analysis of a select number of measures

18
Measure Analysis Process
Demographic Data
Fixture Assumptions
Participation Assumptions
Measure Participants
Savings Data
Cost Data
Measure Savings
Measure Costs
19
Two Approaches to Quantifying the Goal

• Statement related to production/demand level
• Reduce water production per person, on an
  average annual basis, from 250 gpd to 230 gpd
  within 6 years.
• Maintain SF sales per SF connection at 200 gpd,
  on an average annual basis.
• Directly linked to the expected savings from the
  conservation program.
• Save 100,000 gpd, on an average annual basis, at
  full implementation of the conservation program
  in 6 years.

20
Goal/Tracking Approach 1

• Goal Reduce water production per person, on
  an average annual basis, from 250 gpd to 230 gpd
  within 6 years.
• Track Total production / population
• Risk Higher risk in terms of ability to
  state that you have achieved your goal. This
  accurately describes your production / person
  trend. However, non-conservation elements can
  impact that trend. (weather, large industrial
  customer moves in, rates)

21
Goal/Tracking Approach 2

• Goal Save 100,000 gpd, on an average annual
  basis, at full implementation of the conservation
  program in 6 years.
• Track of rebates / devices / activities
• x per unit savings
• savings achieved
• Risk Lower risk in terms of ability to
  state that you have achieved your goal.

22

• Part 3
• Meet the Public Process Requirements

23
Public Process Requirements (WAC 246-290-830)

• Opportunity for consumers and public to
  participate and comment on the goals (4a)
• Elected governing board/body should review and
  consider received comments (4c)
• 2 week notice including the purpose, date, time,
  location, where the "materials supporting the
  rationale for the proposed goal" can be reviewed
  (4b)

24
Public Process Requirements (WAC 246-290-830)
(continued)

• Materials made available to the public (4d)
• WUE Program elements
• Annual water use efficiency performance reports
• Water supply characteristics description
• Summary of the comments received and how they
  were considered 
• Existing public processes can be used (5)

25
Nine WUE Program Elements

• Historical conservation program
• Saving estimate over last 6 years due to
  conservation program
• Conservation goal
• Analysis of 1-12 measures
• Describe conservation programs for next 6 years
  including schedule, budget, and funding mechanism

26
Nine WUE Program Elements(Continued)

• Describe how customers will be educated on
  efficiency practices
• Estimate projected water savings from selected
  measures
• Describe how efficiency program will be evaluated
  for effectiveness
• Distribution system leakage for past 6 years

27
In Summary
Tracking
28
Resources

• Formatted Version of WUE Rule
• www.doh.wa.gov/ehp/dw/municipal_water/WUE_Final_Ru
  le_Language_04_10_07.pdf
• DOH WUE Rule website
• www.doh.wa.gov/ehp/dw/municpial__water/water_use_e
  fficiency_rule.htm
• Kelly ORourke, HDR
• Kelly.orourke_at_hdrinc.com
• [phone]