Water Efficiency in the City of Ashland DSS Model Outcomes Water - - PowerPoint PPT Presentation

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Water Efficiency in the City of Ashland DSS Model Outcomes Water - - PowerPoint PPT Presentation

Oct 27, 2023 209 likes •396 views

Water Efficiency in the City of Ashland DSS Model Outcomes Water Efficiency Program Review JULIE SMITHERMAN, WATER CONSERVATION SPECIALIST LISA MADDAUS, P.E., MADDAUS WATER MANAGEMENT AWAC MEETING OCTOBER 24, 2017 Proje ject G t Goa oals

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SLIDE 1

Water Efficiency in the City of Ashland DSS Model Outcomes

Water Efficiency Program Review

JULIE SMITHERMAN, WATER CONSERVATION SPECIALIST LISA MADDAUS, P.E., MADDAUS WATER MANAGEMENT AWAC MEETING OCTOBER 24, 2017

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SLIDE 2

Proje ject G t Goa

  • als

ls a and O Obje ject ctiv ives

  • Evaluate and quantify the City’s remaining long-term

water conservation potential;

  • Determine which set of measures and implementation

strategies represent the best approach to achieve future water savings; and

  • Produce a conservation plan as a subset of the water

master plan, to guide the City in carrying out future water conservation programs.

10/24/2017 Preliminary Draft Status Update

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SLIDE 3

Program Desi Design gn O Over ervi view

 Review Individual Measure Details

 Benefit-cost ratios  Cost of savings per unit volume (mg)  Differences between “utility vs. community” perspectives

 Build Program Scenarios

 Overall savings for “suites” of measures  Total benefit-cost ratio  Estimated total cost  Comparing Scenarios

 Illustrating the point of diminishing returns

 Finalize Optimal Program Design

 Add scenarios  Refine details  Seek feedback  Select Recommended Preferred Program Scenario

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SLIDE 4

Water er Us Use by Sector

  • r (

(2016)

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SLIDE 5

10/24/2017 Preliminary Draft Status Update

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SLIDE 6

10/24/2017 Preliminary Draft Status Update

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SLIDE 7

10/24/2017 Preliminary Draft Status Update

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SLIDE 8

Water E Efficiency ncy P Program am D Dev evelopment

  • All Customer Sectors
  • SF, MF, Com, Gov,

Mun, Irr, Com/Res

  • Measure Categories
  • Landscape & Irrigation
  • Indoor fixtures
  • Commercial Equipment
  • Education & Outreach
  • Utility operations programs

10/24/2017 Preliminary Draft Status Update

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SLIDE 9

Program C Compari rison

Program A: Current

 Irrig

igatio ion E Evalua luatio ions ns

 Lawn R

Replacem emen ent

 Water-Wise L

Lands ndscaping ing W Website

 Toile

let, W Washe her, D Dishwasher

 Indo

ndoor E Evalua uations ns

 Educ

ducatio ion & n & Out utreach

 Soil M

Moisture M e Met eter er

 Sho

howerhe head d & & Aerators

Program B: Current Programs Plus

 Pressure R

Reduc ductio ion Valve R Reba bate

 Lands

ndscape pe E Equi quipment Convers rsion

 Lea

eak R Rep epair – Low

  • w I

Incom

  • me

 Graywater I

Indo ndoor & & Out utdo door

 Rainwat

ater C Cat atchment

 Smart C

Controller er

 Awar

ards s Program am

 Water W

Waste Hotline ne

10/24/2017 Preliminary Draft Status Update

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SLIDE 10

Program C Compari rison

 Ra

Rain in S Sen ensors

 Hot W

Water o r on De Demand nd

 Su

Sub-metering

 Com

  • mmercial Washer R

Reb ebate

 Customer

er W Water er Us Use Report Software

 Large C

e Commer ercia ial l Rebates es

 Urina

nal R Reba bates

 School

l Ret etrofit it P Program

10/24/2017 Preliminary Draft Status Update

Program C: Includes A & B Programs Plus the following

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SLIDE 11

Projec ected ed W Water er De Demands & & Program S Savi vings

Year Projected Water Demands Demands with Plumbing Code Water Conservation Program A Water Conservation Program B Water Conservation Program C 2020 1,096 1,088 1,059 1,042 1,026 8.31 37.28 54.04 70.21 0.8% 3.5% 5.1% 6.8% 2030 1,152 1,118 1,051 1,002 926 34.8 101.6 150.5 226.7 3.1% 9.4% 14.7% 23.5% 2050 1,199 1,124 1,052 1,000 924 75 147 199 275 6.5% 13.5% 19.4% 28.6%

10/24/2017 Preliminary Draft Status Update

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SLIDE 12

Show Historical Demands Graph Type Units 200 400 600 800 1,000 1,200 1,400 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 2041 2043 2045 2047 2049 Historical Average Demand (mg/year) Cost Effectiveness Demand Projection Average Demand without Plumbing Code (mg/year) Cost Effectiveness Demand Projection Average Demand with Plumbing Code (mg/year) Program A 10% Average Demand with Plumbing Code (mg/year) Program B 15% Average Demand with Plumbing Code (mg/year) Program C 23% Average Demand with Plumbing Code (mg/year)

Proj

  • ject

ected ed W Water er D Demand S Scenarios

10/24/2017 Preliminary Draft Status Update

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SLIDE 13

Recommended Program B

B Utility and Customer C Costs

10/24/2017 Preliminary Draft Status Update

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SLIDE 14

Program am A, B B, & & C Resul ults

Conservation Program Present Value of Water Savings Present Value of Utility Costs Water Utility Benefit/Cost Ratio

Program A 10% with Plumbing Code

$1,100,799 $2,614,881 0.42

Program B 15% with Plumbing Code

$1,768,029 $3,607,300 0.49

Program C 23% with Plumbing Code

$3,028,516 $4,929,419 0.61

Conservation Program Comparison

Water Savings (mgy) 2020 2025 2030 Water Utility Benefit to Cost Ratio Community Benefit to Cost Ratio

Program A 10%

29 52 67 0.42 0.48

Program B 15%

46 99 116 0.49 0.46

Program C 23%

62 175 192 0.61 0.70

Conservation Program Long Term Water Savings

10/24/2017 Preliminary Draft Status Update

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SLIDE 15

Rev evised ed W Water er D Demand B Basel elines es, Projec ections & Targets

10/24/2017 Preliminary Draft Status Update

* * Demands w

with Savings, Plumbing C Code O Only – No Activ ive C Conservation P Progr gram

Me Measur urem ement Met Method 2012 D 2012 Demand Baselin eline 2030 2030 Target 5% % 2030 2030 Target 10% 10% 2030 2030 Target 15% 15% Actual 2016 2016 Demand Mi Millio lion G n Gallo lons p per er Ye Year (MGY) 1, 1,192 192 1, 1,118 118 1, 1,051 051 1, 1,002 002 1, 1,000 000 Gallo lons ns per er C Capit pita per r Day ( (GP GPCD) 157 157 149 149 141 141 133 133 134 134 Me Measur urem ement Met Method 2030 P 2030 Projected Demand 2030 2030 Target 3% * % * 2030 2030 Target 10% 10% 2030 2030 Target 15% 15% 2030 2030 Target 23% 23% Mi Millio lion G n Gallo lons p per er Ye Year (MGY) 1, 1,152 152 1, 1,118 118 1, 1,051 051 1, 1,002 002 926 926 Gallo lons ns per er C Capit pita per r Day ( (GP GPCD) 144 144 139 139 131 131 125 125 115 115 2012 Master Plan 2017 Master Plan

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SLIDE 16

Show Historical Demands Graph Type Units 200 400 600 800 1,000 1,200 1,400 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 2041 2043 2045 2047 2049 Historical Average Demand (mg/year) Cost Effectiveness Demand Projection Average Demand without Plumbing Code (mg/year) Cost Effectiveness Demand Projection Average Demand with Plumbing Code (mg/year) Program A 10% Average Demand with Plumbing Code (mg/year) Program B 15% Average Demand with Plumbing Code (mg/year) Program C 23% Average Demand with Plumbing Code (mg/year)

Proj

  • ject

ected ed W Water er D Demand S Scenarios

10/24/2017 Preliminary Draft Status Update

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SLIDE 17

Next S Step eps : : AWAC Feed eedback

  • Fi

Finalize D e Dem emand S Scena enario

  • Origin

inal l Bas aselin line foll

  • llowed t

the 2 2012 M Mas aster P Plan lan

  • Need to re-establish the baseline to move forward?
  • Is AWAC comfortable moving forward with new baseline?
  • Current proposed starting point is 1,080 MGY
  • Optimi

mize Pr Program D m Design

  • Looking f

for feedb eedback on n Programs a s and nd M Mea easu sures

  • Sel

elec ect R Rec ecommended Preferred ed P Progr gram S Scena enario

10/24/2017 Preliminary Draft Status Update