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 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
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
Water er Us Use by Sector or ( (2016)
10/24/2017 Preliminary Draft Status Update
10/24/2017 Preliminary Draft Status Update
10/24/2017 Preliminary Draft Status Update
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
Program C Compari rison Program A: Current Program B: Current Programs Plus Irrig igatio ion E Evalua luatio ions ns Pressure R Reduc ductio ion Valve R Reba bate Lawn R Replacem emen ent Lands ndscape pe E Equi quipment Convers rsion Water-Wise L Lands ndscaping ing W Website Lea eak R Rep epair – Low ow I Incom ome Toile let, W Washe her, D Dishwasher Graywater I Indo ndoor & & Out utdo door Indo ndoor E Evalua uations ns Rainwat ater C Cat atchment Educ ducatio ion & n & Out utreach Smart C Controller er Soil M Moisture M e Met eter er Awar ards s Program am Sho howerhe head d & & Aerators Water W Waste Hotline ne 10/24/2017 Preliminary Draft Status Update
Program C Compari rison Program C: Includes A & B Programs Plus the following Large C e Commer ercia ial l Rebates es Ra Rain in S Sen ensors Urina nal R Reba bates Hot W Water o r on De Demand nd School l Ret etrofit it P Program Su Sub-metering Com ommercial Washer R Reb ebate Customer er W Water er Us Use Report Software 10/24/2017 Preliminary Draft Status Update
Projec ected ed W Water er De Demands & & Program S Savi vings Projected Demands with Water Water Water Water Plumbing Conservation Conservation Conservation Year Demands Code Program A Program B 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
Proj oject ected ed W Water er D Demand S Scenarios Show Historical Demands Graph Type Units 1,400 Historical Average Demand (mg/year) 1,200 Cost Effectiveness Demand Projection 1,000 Average Demand without Plumbing Code (mg/year) Cost Effectiveness Demand Projection 800 Average Demand with Plumbing Code (mg/year) 600 Program A 10% Average Demand with Plumbing Code (mg/year) 400 Program B 15% Average Demand with Plumbing Code 200 (mg/year) Program C 23% Average Demand with Plumbing Code 0 (mg/year) 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 2041 2043 2045 2047 2049 10/24/2017 Preliminary Draft Status Update
Recommended Program B B Utility and Customer C Costs 10/24/2017 Preliminary Draft Status Update
Program am A, B B, & & C Resul ults Conservation Program Long Term Water Savings Water Utility Benefit to Cost Community Benefit Water Savings (mgy) 2020 2025 2030 Ratio to Cost Ratio 29 52 67 0.42 0.48 Program A 10% 46 99 116 0.49 0.46 Program B 15% 62 175 192 0.61 0.70 Program C 23% Conservation Program Comparison Present Value of Present Value of Water Utility Conservation Program Water Savings Utility Costs Benefit/Cost Ratio $1,100,799 $2,614,881 0.42 Program A 10% with Plumbing Code $1,768,029 $3,607,300 0.49 Program B 15% with Plumbing Code $3,028,516 $4,929,419 0.61 Program C 23% with Plumbing Code 10/24/2017 Preliminary Draft Status Update
Rev evised ed W Water er D Demand B Basel elines es, Projec ections & Targets 2012 Master Plan Me Measur urem ement 2012 Demand 2012 D 2030 Target 2030 2030 Target 2030 2030 Target 2030 Actual 2016 2016 Method Met Baselin eline 5% % 10% 10% 15% 15% Demand Mi Millio lion G n Gallo lons p per er 1, 1,192 192 1,118 1, 118 1, 1,051 051 1, 1,002 002 1, 1,000 000 Year (MGY) Ye Gallo lons ns per er C Capit pita 157 157 149 149 141 141 133 133 134 134 per r Day ( (GP GPCD) 2017 Master Plan Measur Me urem ement 2030 P 2030 Projected 2030 Target 2030 2030 Target 2030 2030 2030 Target 2030 Target 2030 Method Met Demand 3% * % * 10% 10% 15% 15% 23% 23% Millio Mi lion G n Gallo lons p per er 1, 1,152 152 1,118 1, 118 1,051 1, 051 1,002 1, 002 926 926 Year (MGY) Ye Gallo lons ns per er C Capit pita 144 144 139 139 131 131 125 125 115 115 per r Day ( (GP GPCD) * * Demands w with Savings, Plumbing C Code O Only – No Activ ive C Conservation P Progr gram 10/24/2017 Preliminary Draft Status Update
Proj oject ected ed W Water er D Demand S Scenarios Show Historical Demands Graph Type Units 1,400 Historical Average Demand (mg/year) 1,200 Cost Effectiveness Demand Projection 1,000 Average Demand without Plumbing Code (mg/year) Cost Effectiveness Demand Projection 800 Average Demand with Plumbing Code (mg/year) 600 Program A 10% Average Demand with Plumbing Code (mg/year) 400 Program B 15% Average Demand with Plumbing Code 200 (mg/year) Program C 23% Average Demand with Plumbing Code 0 (mg/year) 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 2041 2043 2045 2047 2049 10/24/2017 Preliminary Draft Status Update
Next S Step eps : : AWAC Feed eedback • Fi Finalize D e Dem emand S Scena enario • Origin inal l Bas aselin line foll ollowed 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
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