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<br />Page 4 <br /> <br />Jrd - The third correspondence will be a survey sent to all <br />participants which will include questions pertaining to device <br />performance, homeowner acceptance, any habit changes, household <br />data and other questions, The survey will be an important means to <br />get participant feedback and continue a heightened level of <br />awareness, <br /> <br />A <br /> <br />6, Data Collection and Analysis - The ability for advanced <br />planning is one of the most important elements to this project and <br />one that will make the project unique. The technical advisory group <br />will need to make sure that all necessary data is gathered or <br />measured in order for analysis to be accurate, <br /> <br />Methodology - Water use data will be collected for 18 months. This <br />period will include one full winter water use season which is <br />important to isolate interior water use from exterior use and <br />weather variables. The actual analysis will be conducted after 18 <br />months of data is collected. <br /> <br />There are "things to measure" and "things to analyze". A <br />preliminary list follows, <br /> <br />Things to measure; data collection: <br />(pa~tial list, to be supplemented by Technical Advisory group) <br />,.~~~ * monthly billing records with water and energy use for all <br />J'!)' ~ participants (norl-L r,,:h. C,hCLl'l~~) <br />ol'j" * treatment plant operational costs including pumping charges, <br />',,,tfJ. ~. ~t! chemical costs, changes in peak use and others <br />~ ()C\c,lei'~ "'<P-:~"l * survey responses including device retention rates and <br />* l..)(l C\.#J" <~ performance <br />/>oJ", t<~ ",'7 * account of water meter accuracy <br />~0~~?~* criteria needed for future analysis of program impact on <br />,/e."':'Io9" rates <br />~ * household demographics such as number of bathrooms, number <br />of householdnmembers and ot~er/Pertinent informetion <br />1< +:\0":> nJ-L':J ~" -n......\Ilrt.'i ~(L nhotlt wr(4\,f- 0'}Il.1~ '* dtl/lce~ <br />Things to analyze: r <br />(partial list, to be supplemented by Technical Advisory group) <br />* pre/post consumption, statistical significance <br />* interpret affects on water use (per person or per household <br />for greatest statistical significance? <br />* Return on investment for the utility; assumptions should <br />include cost if devices were purchased by utility and/or by <br />homeowner as well as all other criteria used to determine <br />ROI <br />* cost effectiveness for utility and program payback period <br />* dollar savings to customers <br />* interpretation of survey <br /> <br />IJo <br />rlYl"f <br />*' f("t.S9l>r!. I~ {(PO-80'fS~) <br />1k CN'WoJJ 1-rUlds -In be. Mhd <br />