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HomeMy WebLinkAbout06/29/2023 - Meeting Materials WaterMAPS'm Analysis and Tools for Conservation Programming in Salt Lake City Prepared for the Advisory Board of the Salt Lake City Department of Public Utilities Pub I I C Dr. Joanna Endter-Wada, Professor and Project PI O- , UtIlItI CS Chris Garrard, Programmer/Analyst II Christopher McGinty, Associate Director, RS/GIS Lab Stephanie Duer Water Conservation Manager WaterMAPS Salt Lake City Department of Public Utilities UtahStateUniversity. Your new, personalized outdoor water use report is now available to view online at: Your outdoor water use report will help you learn ways you can improve your water conservation efforts. It includes information such as: How much water does my landscape need? Am I using outdoor water efficiently? How much water can I save? Where can I find more information? AftPu b I I C WaterMAPS 5�� I UtahStateUniversity Salt Lake City WaterMAPSTM Phase l • Baseline WaterMAPSTM analysis of single family SALT LAKE CITY DEPARTMENT OF PUBLIC UTILITIES residential sector for 2014-2018, revealing capacity to WATERMAPS"'ANALYSIS conserve outdoor water exists and can help meet and PHASEIREPORT expand the utility's water conservation goals. Submitted to: Salt Lake City Department of Public Utilities Stephanie Duer,Water Conservation Manager Phase 2 Prepared by: Wa—MAPS—Team • Installation/upgrade of 6 Utah Climate Center weather Dr.Joanna Endter-Wada,PhD,Principal Investigator Chris Garrard,Programmer/Analyst 11 stations in SLCDPU service area. Ellie Leydsman McGinty,Researcher III Christopher McGinty,Associate Director • Development of a Conservation Manager Viewing Novembed2020 Application and expansion of analysis to commercial, waterMAPS" industrial, and institutional properties. Water Management Analysis and Planning Software CWEL Public Phase 3 (�`""- Utilities ®`°°'° J • Expansion of WaterMAPSTM data, analysis and tools (e.g., '� EXTENSION 1 N,L�1n:,1k1,t,11RGE5 adding monthly intervals, updating land cover). .."StateUn'verslty t tahStateUniversity. REMOTE SENSING/GISLABORATOBy • Implementation of individualized reports for single family residential meter account holders. PSTM? What Is WaterMA 0 Nov st, 11 WaterMAPSTM ` � -Water Management Analysis � IMt - and Planning Software WaterMAPSTM is an analytic software program based on parcel-scale landscape water budgets.The program was developed to assist water managers in understanding patterns of landscape water use,identifying areas with the greatest capacity to conserve water,and guiding water conservation planning and programming.The WaterMAPSTM program and team are affiliated with the Center for Water-Efficient Landscaping and USU Extension. watermaps . usu . edu WaterMAPS"' - Water Management Analysis and Planning Software This software application uses parcel data, water meter data, local weather data, and a simplified map of vegetation types to calculate a Landscape Irrigation Ratio (LIR). The LIR is an individualized value that indicates how efficiently outdoor water is being used. s Parcels land CaVet Land Cover Data > Meter Data , W 7C ater Meter Et Data i WaterMAPSTM - Landscape Irrigation Ratios (LIRs) The Landscape Irrigation Ration (LIR) is calculated by dividing the estimated outdoor water use by estimated landscape water need for an individual property. Outdoor water use is estimated by comparing winter and summer water use. Landscape water need is estimated by assessing the water needs of a property's vegetation in relation to daily weather values. ��. 1.24 2.08 ,^ 1.52 Landscape Water Use estimated 1.15 (derived from water meter data) 0.82 LIR = Landscape Water Need estimated Landscape Irrigation Ratio(LIR) (derived from parcel data,land cover ® Less than 1=Efficient data,and localized reference ETo data) Between 1 and 2=Acceptable 1'08 Between 2 and 3=Inefficient Z Greater than 3=Excessive L' i - , 2.01 2.21 1.11 1.95 45 Total ET., Vegetation Water Need, and Average Total Use Total ETo � Grass Shrubs � Sparse wA Avg Use �� Avg Need 40 37 37 37 37 38 35 35 32 32 I 30 29 —� 28 30 / 2g I 30 I : 24 I24 � I I I p 25 22 II 22 I 22 I 22 I 23 II Co 20 181/ 18II I/ 18II 19II II II II II II ll_ ll_ ll_ ll_ I/ ` 15 MA 1 I� _ _ ll_ I/_ 11 10 PA l/ l/ l/ 11 511 0 11 10,/ ll, II, 2014 2015 2016 2017 2018 Total reference evapotranspiration, water need, and average use and landscape water need for April through October by year. Solid blue bars show measured ET, and green bars show the amount of evapotranspiration for each land cover type (calculated using plant factors). The hatched orange and blue bars show the average property use and need, respectively. Categorizing Landscape Water Use for Conservation Prioritization Efficiency Standard(Landscape Irrigation Ratio) Low: OR<_2 High: 2<LIR CATEGORY 2A CATEGORY 1 Medium Conservation Priority High Conservation Priority High: Block 4 Block High Volume High Volume Low OR High LIR Volume (by pricing block of --------- metered water) CATEGORY 3 CATEGORY 2B Low: Low Conservation Priority Medium Conservation Priority Block 2 Block 1 Low Volume Low Volume Low OR High OR Percentages of Single-family Residential parcels in each category Efficiency Standard(Landscape Irrigation Ratio) Low: OR<_2 High: 2<OR (2A) Medium Conservation Priority (1) High Conservation Priority High Volume/Low LIR High Volume/High OR High: 2014= 19% 2014= 11% Block 4 2015= 17% 2015=10% Block 3 2016= 19% 2016=12% 2017= 19% 2017= 12% Volume 2018=20% 2018= 15% (by pricing block of --------- metered water) (3) Low Conservation Priority (2B) Medium Conservation Priority Low Volume/Low LIR Low Volume/High LIR 2014=65% 2014=5% Low: Block 2 2015=68% 2015=5% Block 1 2016=64% 2016=5% 2017=63% 2017=6% 2018=60% 2018=6% Percentages of the annual conservation capacity in each category(if LIR <_ 1) Efficiency Standard(Landscape Irrigation Ratio) Low: LIR<_2 High: 2<LIR (2A) Medium Conservation Priority (1) High Conservation Priority High Volume/Low LIR High Volume/High LIR High: 2014=24% 2014=53% Block 2015=25% 2015=51% Block 3 2016=25% 2016=53% 2017=24% 2017=53% Volume 2018=24% 2018=56% (by pricing block of --------- metered water) (3) Low Conservation Priority (2B) Medium Conservation Priority Low Volume/Low LIR Low Volume/High LIR 2014= 13% 2014=9% Low: Block 2 2015= 14% 2015= 10% Block 1 2016= 14% 2016=9% 2017 = 13% 2017= 10% 2018= 12% 2018=9% Average annual gallons per household saved if LIRs were reduced to 1 Efficiency Standard(Landscape Irrigation Ratio) Low: LIR<2 High: 2<OR (2A) Medium Conservation Priority (1) High Conservation Priority High Volume/Low LIR High Volume/High LIR High: 2014=46,266 2014= 172,290 Block 4 2015=47,740 2015= 173,897 Block 3 2016=51,309 2016= 175,553 2017=52,189 2017= 173,459 Volume 2018=55,179 2018= 177,664 (by pricing block of metered (3) Low Conservation Priority 2B Medium Conservation Priority water) ( ) Low Volume/Low LIR Low Volume/High LIR 2014= 7,321 2014=67,589 Low: Block 2 Z015 =7,047 2015=65,602 Block 1 2016=8,431 2016=66,893 2017=8,406 2017=66,190 2018=9,088 2018=68,316 Implications for delivery CATEGORY of conservation programs. Conservation Strategies Any approach that would incentivize them Categorizing Landscape Water Use for Conservation Prioritization to conserve, with emphasis on ones that Efficiency Standard(Landscape Irrigation Ratio) can save more water and Law:LIR<_2 High:2<LIR do more to increase efficiency. CATEGORY2A CATEGORY Conservation Programs to Deliver High: Medium Conservation Priority High Conservation Priority Water Check and App Alerts Block 4 Block High Volume High Volume Advanced MeteringInfrastructure Low OR High OR Volame Leak Alerts (by pricing block of Landscape Alterations metered water) Irrigation System Rebates CATEGORY 3 CATEGORY 2B Low: Low Conservation Priority Medium Conservation Priority Water Budget Block Directed Survey ebckl Low Volume Low Volume Low LIR High LIR Implications for delivery of conservation programs. CATEGORY2B Conservation Strategies Categorizing Landscape Water Use for Conservation Prioritization Efficiency Standard(Landscape Irrigation Ratio) Even though their volumes of water use are Low:LIR<2 High:2<LIR low, opportunities exist to increase their CATEGORY 2A CATEGORY 1 efficiency, such as through changes to their High. Medium Conservation Priority High Conservation Priority irrigation systems (e.g., replacement or Block 4 Block High Volume High Volume repair of spray heads or controllers). Low LIR High LIR Volume (by pricing block of Conservation Programs to Deliver metered water) Water Check CATEGORY 3 CATEGORY 2B Law: rity Low Conservation Prio Medium Conservation Priority Ground Truth Landscape Type Block 2 Blocks Low Volume Low Volume Directed Survey Low LIR High LIR Implications for delivery of conservation programs. CATEGORY2A Conservation Strategies Categorizing Landscape Water Use for Conservation Prioritization Efficiency Standard(Landscape Irrigation Ratio) Since these locations are relatively Law:LIR<2 High:2,LIR efficient,focus on using approaches that reduce volume of water used, such as CATEGORY 2A CATEGORY 1 High: Medium Conservation Priority High Conservation Priority landscape transitions. Block 4 Block 3 High Volume High Volume Low LIR High OR Conservation Programs to Deliver Volume (by pricing Water Check block of --------- metered water) Landscape Alterations CATEGORY 3 CATEGORY 2B Low: Low Conservation Priority Medium Conservation Priority Irrigation System Rebates Block 2 Blocks Low Volume Low Volume Directed Survey Low OR High LIR Implications for delivery of conservation programs. CATEGORY Categorizing Landscape Water Use for Conservation Prioritization Conservation Strategies Efficiency Standard(Landscape Irrigation Ratio) Recognize or reward them for being Low:LIR<2 High:2<LIR relatively efficient and using lower CATEGORY 2A CATEGORY 1 volumes of water use. Employ High: Medium Conservation Priority High Conservation Priority reinforcement and encouragement to Block maintain efficiency and seek additional Block High Volume High Volume Low LIR High OR conservation savings. Volume (by pricing block of --------- metered Conservation Programs to Deliver water) CATEGORY CATEGORY2B Recognition and Reward Low: Low Conservation Priority Medium Conservation Priority Block Study for keys to success Block i Low Volume Low Volume Low LIR High LIR The role of WaterMAPSTM _ in conservation planning '� "M' Program-level planning � l /,0, • Participation pre-qualification F'^ :s-xo • Post-participation verification .,s.w • Program effectiveness x 71•i System-wide Applications I� • Inspection and analysis of water use patterns � A» 131 ,01051 Iq,,N 10,t Id6 W&1 »IN3 • Capacity to conserve • Target marketing • Neighborhood approach to messaging 40 • Benchmarking Beta version of Conservation Manager Viewer Application (for more detailed diagnostics) Introducing WaterMAPS It is our priority to ensure our reliable high quality drinking water for our community.We are stewards of our water resources and our environment,from the Wasatch Mountains to Great Salt Lake. Factors such as climate change and drought have the potential to impact our region's water supplies and exacerbate other water challenges.Water conservation is one of the best ways to extend our water supply,ensure resiliency during drought,and address declining water levels in the Great Salt Lake. 4 modifyingirrigating appropriately or . our own homes. WaterMAPS Public Account UtahStateUniversity. U t i I i t i e S service ID What is WaterMAPSTM? WaterMAPS-"is a software program developed at Utah State University(USU)and applied in conjunction with the Salt Lake City Department of Public Utilities(SLCDPU).It uses your water meter data,local weather data,and a simplified map of the vegetation types on your property to calculate a Landscape Irrigation Ratio(LIR).The LIR is an individualized value that can help you understand how efficiently your outdoor water is being used.For additional information please visit Introducing WaterMAPS. Your outdoor water use report + This report is for the property located at: 1 123 SOME ST Salt Lake City,UT 84116 �Mb This map shown the parcel(outlined in blue)that we are associating with your water meter 1 Our analysis includes the landscape inside this parcel boundary and also extends to the street in order to include the park strip.Please fill out this Information Feedoack Form if. • the map is incorrect in any way other than inclusion of the park strip ; • you have made major changes to your landscape since 2016 • your landscape is irrigated with water other than what is delivered by Salt Lake City Leaflet I Powered by Esri I Esn Community btaps Contnbulors,Maxar,Microsoft,Utah Geospatial Resour... Department of Public Utilities or has multiple meters How much water does my landscape need? Parcel breakdown The types and amount of vegetation on this property and in the park strip,along with local weather conditions,determine how much water your landscape reeds. 40 6aaa and ahn. The land cover on your property was classified into impervious surfaces(buildings and cement areas that do not require water)and three general vegetation types that are generally irrigated:lavms/turfgrass;trees and shrubs;and,sparse vegetation.Each of these vegetation types require different amounts of water.Hover over the pie chart to see square footage of cover types.Land classifications were based on publicly available aerial imagery. Weather data for your local area were used to estimate how much water the different types of vegetation need on a monthly and annual basis,PRISM Climate Data were used for 2018-2020 analyses.In fall 2020,six Utah Climate Center weather stations were installed in the Salt Lake City Department of Public Utilities service area.Data from the weather station closest to your location were usee s rce that time. Introducing the Landscape Irrigation Ratio (LIR) To assess the effiidency of your landscape waiter use,we calculate a Landscape Irrigation Ratio(UR),which compares how much water you use on your landscape to how much water your landscape needs.The UR is outdoor water use divided by landscape water need.An LIR of 1 means that you are watering according to your landscape's need.A value greater than 1 means you may be watering your landscape more than it needs.LIRs over 3 suggest excessive landscape water use.URs are calculated annually and monthly for this report Outdoor Water Use.&nac l 7your UR falls in this range then your landscape watering is LrA= (derived from nrder daft) _ Bredwthan 3 Excessive Landscape Water Neede,tated (deriued from v getat an needs and lxal ueathr data) Bellween 2 and 3 Inefficient Between 1 and 2 Acceptable Less than 1 Effi&"t Am I using outdoor water efficiently? The lardscape ir-gaton Rat ca-oe used to.rack how we you avo'.d—watering.The first char.snown below allows you to v'e&up to 5 past years of annual As for your properly. As you dick on different years,the second chart in this box and the illustrations in the next bm will charge to show you the monthly data for that year.Analyze which months you tend to overuse water to help guide your efforts to increase your landscape water use efficiency. Annual Lilts z U—Mly Ults her 2022 awa pn In,blue car Mr,y—I.—n.n.,y a.raln m.not too—n.era awt M a 7 10, ara 9a19 M, 9at1 anz rp Mry J. Jul Nq Sep C.. How much water can I save? You likely on save the difference between how much you water and what your landscape needs.This chart shows that differexe for each month of the irrigation season(April-October) for the selected year and the table shows potential outdoor water savings in gallons. OYYOer Wart.Use vs ll...d pe NeW far 2022 — Potential Outdoor Water Savings in Gallons for 2022 ¢mu R-d Gallons Outdoor Landscape Iblb- .,m. Month Used WE Need SORVW ApM 11,221 Z733 5,290 0 May 8,977 763 5,886 0 a— - June 13,465 4,977 8,268 0 July 16,457 8.243 11.246 0 aJxw August 18,701 10,214 9,528L L 888 September 15,709 7,221 8.046 0 Apr Nry Jun JJ &a Sep Oct October 13,465 5,251 5,512 0 Want more information? Read more about the WaterMAPS-methods used to produce this report. See tips on how to reduce landscape water use. Learn more about water conservation programs supported by Salt Lake City Department of Public Utilities. Additional landscape water conservation information and resources can be found on the website of Utah State University's Center for Water Efficient Landscaping. wn.'MAPS �Public Pu b I i c Tips to Reduce Landscape Miter Use lMahSrncNlniversity. Utilities Visit www.slc.gov/utilities/conservation to learn ways to save., O'Y 1 ( 4rlgotlm andsR fi— V� f .i1ngme <:...wm<e m°m Make anal wale ig rx yav°u a° s i e.."a,momni Water less often.MR1.i9 o day adjustments by-my less .ca uo",i"ro,m.uo".�.�rwrmewau.ew. r two ror three)before you n the spring and bte summer. wohr u an eary way to sa °xedr° ve. Add rmhoes�f kh to Plant a wore mise rl gardens t o et in isture. ne<"a� 9rassseed rY. 4 e Red-tndaor water use andjoin the Th— bees^°<e�o `°wa< Fa on watering 7-Gallon Challenge. °"V�"' trees arM shubs. htros//wW slcaov/utalifies/co rvo[ -eta r x. r Seler ueplanh Ell _ Group Plaant,tonmg. with iu m- eeds This is 1!C. d hydroz n ng. ©�� �� ❑ _ R d h /oo p int Sig. P for a h Wot r Check /y rl wn k d rage o/ bat p grams M ! n high t si mutate tgtPl//ufah, .� d p oat growth d90 bagless to help retain moisture. AWr�r+�R ron<m `.gym�= nrca,.iamnwate„o.e,:romr =1,r s " Additional Applications User Guide For WaterMAPST"" CII Manager Application (May 11,)023) • City-wide Water Use Audit Developed for Salt Lake City Department of Public Utilities'" Developed by the WaterMAPS'"Team at Utah State University Dr.Joanna Endter-Wada,Chris Garrard,Chris McGinty • Commercial WaterMAPSTM WaterMAPSTM S� Extension Assessments Wa[er Management Anatysis Uteh$tatBll ;VBYS;ty and Planning Software WaterMAPS • Other municipal, government, WaterMAPSTM CII Manager Application Provides: and institutional assessments Interactive online mapping platform • Spatial display of URs and Usage volumes with ability to investigate individual properties • Ability to turn on and off different layers of information and adjust their opacity; swipe function to easily view change between two layers • Pre-qualification and post- . Service-area scale display functions: • LIR and Usage maps for 2014-2022(for properties with matched parcel and meter data) verification for landscape Filtering of properties for municipal,LIR values,service types • Data downloads for filtered results transformation programs . Individual property display functions: • Ability to investigate an individual property's land cover,LIR and Usage history, parcels and meters,and other characteristics What is the WaterMAPST"" CII Manager Application ? 1'H ` ♦ :" 4 =1-- 2017 2018 20+1 ?n?' ?077 R r� nI'Ga -Cry tANpu�( kF a . 41x't CitX rY 1 - waaos ? ar* •• I .. - n.� , • ` Yi`;Py �� V 1 � I.+.uni Waft Valloy � Clty M 15WOO - MmMwy 0.1 I• � Nonaday eA. Murray �r� Kae.na ry ' ' � aylenvllM s� . �� Cottonwood r West Jordan THANK YOU-%)h Pu bli c WaterMAPS * UtahStateU n i ve rs ity.> utilitieS Dr. Joanna Endter-Wada Stephanie Duer joanna.endter-wada@usu.edu 435-797-2487 stephanie.duer@slcgov.com Chris Garrard 801-483-6860 chris.garrard@usu.edu 435-797-2602 Chris McGinty chris.mcginty@usu.edu 435-797- 0653