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70 Average Annual Water Use Per Unit (kgal) 60 50 40 30 20 10 0 51.61 46.07 53.45 44.79 In-rent or HOA N=858 Submetered N=118 RUBS N=177 Hot water hybrid N=22 Figure 5.6 Average annual water use per unit – manager survey respondents 40 Difference in Annual Water Use per Unit Compared to In-Rent (kgal) 30 20 10 0 -10 -20 -30 -5.55 1.84 -6.83 -40 Submetered N=118 RUBS N=177 HWH N=22 Figure 5.7 Difference in average annual water compared to in-rent properties – manager survey respondents 140
Table 5.9 2001 <strong>and</strong> 2002 average annual indoor per unit water use - manager survey respondents Average of 2001 <strong>and</strong> 2002 In-rent or HOA Submetered RUBS Hot water hybrid Average (kgal) 51.61 46.07 53.45 44.79 Std Dev (kgal) 25.52 21.86 22.79 35.09 Median (kgal) 46.04 43.12 48.92 38.80 Number N=858 N=118 N=177 N=22 Table 5.10 Statistical tests of manager survey respondent properties: in-rent properties vs. impact properties In-Rent vs. In-Rent vs. Hot Means (kgal) Submetered In-Rent = 51.61 Submetered = 46.07 In-Rent vs. RUBS In-Rent = 51.61 RUBS = 53.45 Water Hybrid In-Rent = 51.61 HWH = 44.79 Hypothesized Mean Difference 0 0 0 Degrees of freedom 164 275 22 t Stat 2.530 -.957 .906 p-value (T
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NATIONAL MULTIPLE FAMILY SUBMETERIN
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CONTENTS LIST OF TABLES............
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Matched-Pair Analysis .............
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LIST OF TABLES Table ES.1.1 Breakdo
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Table 6.6 Elasticity values, analys
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Figure 4.30 RUBS water bill #6 ....
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investigated local water savings as
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We are grateful to the members of a
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quantitative aspects of separate bi
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3. Owner/postcard survey: To identi
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"averages" of impact property water
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in-rent properties, others used the
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of these models included the billin
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70 Average Annual Water Use Per Uni
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COSTS AND BENEFITS Beyond quantifyi
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service charge, then the resident w
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Billing Method Efficient Fixtures?
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70 Avg. Water Use per MF Unit (kgal
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REGULATORY FRAMEWORK REVIEW The fra
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Table ES.1.12 NSUAA Summary of Stat
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above, the researchers offer the fo
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service is preferable, and would he
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practices (BMPs) should be implemen
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infrastructure of the building and
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multi-family housing. The transfer
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CHAPTER 1 INTRODU CTION More and mo
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In 1998, 15.0%, or 15.4 million, of
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TERMINOLOGY AND DEFINITIONS OF BILL
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submetering. With utility-submeteri
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all the two bedroom units for $20 p
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HOW TO USE THIS REPORT This report
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CHAPTER 2 LITERAT URE REVIEW As the
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A review of the literature unearthe
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The price elasticity of water deman
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expected. Additionally, McClelland
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submetered and five control (in-ren
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Another study might want to target
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CHAPTER 3 RESEARC H METHODS, APPROA
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1. Selection of participating study
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STUDY SITE SELECTION The Study aime
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Figure 3.2 National Multiple Family
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Matched pair protocol/survey - conf
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information given the available bud
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survey. Service companies that prov
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in “business to business” calli
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MATCHED PAIR SAMPLE The purpose of
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The second part of the visit requir
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epresentative of a known population
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51 Table 3.7 Postcard survey statis
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Table 3.8 Comparison of annual wate
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postcard survey. Nevertheless, exam
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confidence interval ranged from 49.
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particular property (e.g., the mont
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State PUC officials - water commiss
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10. The PROPID number appearing on
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These costs represent the commodity
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The postcard survey provided inform
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Table 4.4 Average number of units f
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Two-thirds of the properties that r
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Percent of Surveyed Properties with
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$700 Average Rent Per Bedroom ($) $
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Percent of Surveyed Properties with
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Impact properties were also more li
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Table 4.8 Issues considered before
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Percent of Surveyed Impact Properti
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60% Percent of Surveyed Properties
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From the visits, it was found that
Page 142 and 143: 100% Percent of Surveyed Residents
Page 144 and 145: Roughly similar proportions of resi
Page 146 and 147: inserts for toilets (21%) or low-fl
Page 148 and 149: proportion were unsure, 37% from su
Page 150 and 151: Table 4.18 Ownership and rental rat
Page 152 and 153: Figure 4.17 Submeter water bill #1
Page 158 and 159: wastewater rates are not shown so t
Page 160 and 161: Figure 4.23 Hot water hybrid water
Page 162 and 163: RUBS Sample Bills Seven sample RUBS
Page 164 and 165: wastewater rates are not shown so t
Page 166 and 167: Figure 4.28 RUBS water bill #4 from
Page 168 and 169: Figure 4.30 RUBS water bill #6 RUBS
Page 170 and 171: directly to and then paid by the th
Page 172 and 173: never subtracting for common area w
Page 174 and 175: Late Fees At the start of water bil
Page 176 and 177: 124
Page 178 and 179: intuitively clear, and matches comm
Page 180 and 181: Indoor water use was normalized on
Page 182 and 183: Table 5.3 Summarized water use anal
Page 184 and 185: easonable assumption since there is
Page 186 and 187: Figure 5.1 shows the frequency dist
Page 188 and 189: 40 Difference in Annual Water Use p
Page 190 and 191: after 1995. By including only those
Page 194 and 195: Table 5.11 Statistical tests compar
Page 196 and 197: Factors that Influence Water Use Th
Page 198 and 199: Table 5.12 Association of categoric
Page 200 and 201: Indoor Water Use per Unit in 2001 I
Page 202 and 203: Table 5.13 Continuous factors from
Page 204 and 205: Multivariate Models to Determine Im
Page 206 and 207: properties built before 1995 were c
Page 208 and 209: 70 Average Annual Water Use Per Uni
Page 210 and 211: A = Beta coefficient for “Propert
Page 212 and 213: substantially reduces the sample si
Page 214 and 215: Table 5.17 Model #2 coefficients an
Page 216 and 217: 0.00 indicating that whatever fit d
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Page 220 and 221: properties having generally lower w
Page 222 and 223: 110 Average Annual Water Use Per Un
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Page 226 and 227: Table 5.27 Paired samples test, all
Page 228 and 229: Table 5.30 Estimated water use befo
Page 230 and 231: Table 5.33 Comparison of water savi
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Page 234 and 235: sector only reduced usage by 18% (A
Page 236 and 237: Table 6.1 Avoided costs from submet
Page 238 and 239: submetered. Complete responses of c
Page 240 and 241: included in this cost/benefit analy
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Table 6.3 Cost and benefit for owne
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Perceived Concerns In the resident
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With a service fee, residents could
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Table 6.4 Economic return for a res
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ANALYSIS OF PRICE ELASTICITIES Econ
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concluded that if a single elastici
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esults from this analysis point to
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over which they have control than d
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According to the basic consumer cho
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The consumer choice problem can be
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210
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water systems from compliance with
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and methods of practice. NIST publi
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Table 7.1 NSUAA Summary of State Re
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New Surveys of State Agencies and W
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the AWWA WaterStats 1999 database.
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Measures, which dispatches a public
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Mississippi, Missouri, Pennsylvania
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226 Table 7.6 Summary of utility re
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DISCUSSION - KEY EXAMPLES OF STATE
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ill. Condominium associations are g
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under construction after January 1,
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Weights and Measures Regulation In
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from the submetering. Meter testing
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clean and decent housing or the lac
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240
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NATIONAL ORGANIZATIONAL STRUCTURE F
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complaints in all 50 states and app
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- Meters must demonstrate in testin
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- Plumbing systems are space constr
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(2) Twisted or kinked flex supply l
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252
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Estimated Water Use By Different Bi
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there are clear benefits to these s
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study site. These values were then
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immediately strengthens the owner's
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among the nation's key strategies f
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all repair and replacement decision
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These findings underscore the obser
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varies with volume of use) for mult
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Recommendation 6 - Efficient plumbi
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financially responsible for their o
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individual unit, the volume allocat
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RECOMMENDATIONS FOR FURTHER RESEARC
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Fixed rates - Part of a master mete
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Total-capture submetering - a type
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282
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Corral, L.R. 1997. Price and Non-Pr
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McClelland, L. 1980. Encouraging En
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Young, C.E., K.R. Kinsley and W.E.
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