City of Millbrae <strong>Water</strong> Service Area 1 DSS Input Sheet FINAL INPUT SHEET Base Year Average Use and Indoor Percentages by Billing Category for DSS Model 2 Single Family Multifamily Commercial Business Institutional City Irrigation Temporary Year Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor Average, gpd/a Indoor 2001 259 68% 1500 87% 1674 99% 4902 88% 1474 36% 1100 30% 2577.5 12% 45000 4% Data for DSS Model - - Base Year 2001 Number of <strong>Water</strong> Use <strong>Water</strong> Use, Total Dwelling Units in Census 2000 for Millbrae Category Accounts 2001 MGD Use Profile <strong>Water</strong> Use Indoor <strong>Water</strong> Use FY. 2001 3 gpd/a 2 2001 Percent gcd gcd Single Family 5,694 259 1.47 50.49% 94 63 Multifamily 254 1,500 0.38 13.04% 66 58 Commercial 248 1,674 0.41 14.20% Business 40 4,902 0.20 6.74% Single family 2000 Units No. Buildings Institutional 71 1,474 0.10 3.58% 1-detached 5,317 5,317 City 28 1,100 0.03 1.05% 1-attached 269 269 Irrigation 54 2,578 0.14 4.74% Subtotal 5,586 5,586 5,694 108 Temporary 4 45,000 0.18 6.16% Multi family Total 6,393 2.92 100.00% 2-units 210 105 Total <strong>Water</strong> Purchased (produced) 4 = 2.69 MGD 3-4 units 214 61 Unaccounted For <strong>Water</strong> (UFW) 5 = 2% Percent From 5 year BAWUA Survey average 5 to 9 units 604 86 Estimated UFW for DSS Model = 7% Percent 7% if actual is < 7%, otherwise = E25 10-19 units 401 27 <strong>Water</strong> Produced for use in DSS Model 3.13 MGD Add UFW to Total <strong>Water</strong> Use 20 or more units 1,088 22 Peaking Factor 1.51 Provided by Agency or <strong>SFPUC</strong> <strong>Water</strong> Master Plan (or NA) mobile homes 11 0 Peaking Factor for DSS Model= 1.5 If NA use default value of 1.6. Subtotal 2,528 301 254 -47 - Yellow cells are input to DSS Model MF Average = 8.4 units/building 10.0 units/account NOTES Total SF + MF units = 8,114 1. - Communities served (includes all or portions of) Millbrae and nearby unincorporated areas according to BAWUA survey Population and Household Size in Census 2000 for Millbrae 2 - Average gpd/a is based on a 12-month moving average through December 2001. Indoor use is based on average of 2 lowest consecutive months in the winter if meters read bimonthly, or single lowest month if meters read monthly. 3 - Number of accounts is from data provided by water agency for this project (see worksheet with account data in this file) 4 - Total water Purchased (produced) taken from BAWUA for Fiscal Year 2001-2002 or agency if provided. 5 - Unaccounted for <strong>Water</strong> (UFW) is the percent difference between the total water purchased and the total water use. 6 - For reference see additional population estimates provided in population and employment estimates corresponding to service area table. Estimated Residential City of Millbrae City of Millbrae Service Area Census Population Estimated Population Population Reconcile agency account billing data and census data Service Area Billing Accounts - Year 2000 3 Data Sources / Notes Data Sources / Notes 2000 2001 2001 Estimated growth from 2000 to 2001 (CA DOF <strong>Projections</strong>): 0.40% Total Population from Census data 6 = 20,718 20800 Estimated employment growth from 2000 to 2001 (ABAG Employment <strong>Projections</strong>): 0.60% Subtract Institutionalized Population = 317 318 <strong>Water</strong> use for the institutionalized population is accounted for in nonresidential billing categories Residential Population = 20,401 20,482 Residential population shown corresponds to the city or cities represented by Census data Avg. HHS 7 = 2.51 MF Pop @ MF HHS 7 = 2.18 5,511 5,533 5,761 27.0% Percent of Population that is MF SF Pop = 14,890 14,949 15,699 73.0% Percent of Population that is SF 7 - Initial estimate based on census data for renter occupied units. For reference see table below that has 2000 census data for corresponding water service SF HHS 7 = 2.67 area city or cities. Total 21,460 100.0% 2000 Census Data -96 Difference in our estimate and average of 2000-2001 and 2001-2002 BAWUA Surveys Average household size 2.56 -414 Difference in our estimate and the average 2000-2001 and 2001-2002 BAWUA Surveys including institutionalized population Average household size of owner-occupied unit 2.71 Average household size of renter-occupied unit 2.30 Estimate Service Area Dwelling Units for 2001 Homeowner vacancy rate (percent) 0.40 SF Res 5,608 Equals No. Buildings from cell M21 plus growth in accounts for one year from cell T38 Rental vacancy rate (percent) 2.60 MF Res 2,528 Equals billing accounts in 2001 from cell C16 times average units per account in cell N30 (or average units per building in cell L30 to minimize population difference in cell N47) Difference between billing and census data Housing Characteristics from U.S. Census Bureau Meter for assumed 50 units per building Meter for mobile home parks, assume 50 per park Must be more than one building on an MF meter Population and Employment Estimates Corresponding to Service Area Population Employment 2000 Census data for jurisdiction 20,718 NA 2000 ABAG (jurisdictional) 20,718 6,030 2005 ABAG Projection (jurisdictional) 21,400 6,210 2000 ABAG (subregional) 20,718 6,030 Data Prepared : August 15, 2003 By: B. Skeens 2005 ABAG Projection (subregional) 21,400 6,210 Revised: September 5, 2003 2000 Department of Finance Benchmark 20,718 From State of California Department of Finance (DOF) table E-4 as of 4-1-2000. Website www.dof.ca.gov 2001 Department of Finance Estimate 20,800 From State of California Department of Finance table E-4 as of 1-1-2001. Website www.dof.ca.gov 2002 Department of Finance Estimate 20,750 From State of California Department of Finance table E-4 as of 1-1-2002. Website www.dof.ca.gov FY 2000-2001 BAWUA service area 21,394 NA FY 2001-2002 BAWUA service area 21,718 NA 2001 Employment in Service Area (input to DSS Model) = 6,664 Service Area Employment is determined by the ratio of the 2000-2001 BAWUA service area population to the 2000 ABAG Subregional Population and escalated to 2001 using the assumed growth rate in cell T39. Definitions / Abbreviations ABAG Association of Bay Area Governments MF multi family BAWUA Bay Area <strong>Water</strong> Users Association MGD million gallons per day DSS Decision Support System Model No. number du dwelling unit Pop population FY Fiscal Year Res residential gpd/a gallons per day / per account SF single family gpd gallons per day UFW unaccounted for water HHS household size DOF California Department of Finance
3.7 3.65 3.6 3.55 3.5 3.45 3.4 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3 City of Millbrae Projected <strong>Water</strong> <strong>Demand</strong> (Planning Estimate) FINAL RESULTS 2000 2001 2002 2003 2004 2005 2028 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2029 2030 2031 2032 Projected <strong>Water</strong> <strong>Demand</strong> 2030 - 3.3 MGD 2031 - 3.3 MGD Year <strong>Water</strong> Production (MGD)
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San Francisco Public Utilities Comm
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List of Tables, Figures, and Append
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List of Tables, Figures, and Append
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Glossary Account Average gal/day/ac
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Executive Summary INTRODUCTION In F
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Section 1 Introduction
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SECTIONONE Introduction retail serv
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SECTIONONE Introduction 1.3 GENERAL
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Section 2 Approach to Developing Wa
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SECTIONTWO Approach to Developing W
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Section 4 Water Demand Forecasting
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SECTIONFOUR Water Demand Forecastin
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SECTIONFOUR Water Demand Forecastin
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SECTIONFOUR Water Demand Forecastin
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Section 5 Water Demand Projections
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SECTIONFIVE Water Demand Projection
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SECTIONFIVE Water Demand Projection
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Section 6 References
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SECTIONSIX References Hayward, City
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Appendix A Description of SFPUC Who
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Appendix A Description of SFPUC Who
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Appendix A Description of SFPUC Who
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Appendix B Summary of Customer-Spec
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Wholesale Customer Estero MID/Foste
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Wholesale Customer Milpitas, City o
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- Page 81 and 82: Appendix C1 Alameda County Water Di
- Page 83 and 84: 66.0 64.0 62.0 60.0 58.0 56.0 54.0
- Page 85 and 86: City of Brisbane Water Service Area
- Page 87 and 88: Appendix C3 Burlingame, City of
- Page 89 and 90: 5.00 4.95 4.90 4.85 4.80 4.75 4.70
- Page 91 and 92: Cal Water Bear Gulch Water Service
- Page 93 and 94: Appendix C5 California Water Servic
- Page 95 and 96: 18.40 18.20 18.00 17.80 17.60 17.40
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- Page 103 and 104: City of Daly City Water Service Are
- Page 105 and 106: Appendix C9 East Palo Alto, City of
- Page 107 and 108: 5.0 4.5 4.0 3.5 3.0 2.5 2.0 City of
- Page 109 and 110: Estero Municipal Improvement Distri
- Page 111 and 112: Appendix C11 Guadalupe Valley Munic
- Page 113 and 114: 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Guadalu
- Page 115 and 116: Base Year Average Use and Indoor Pe
- Page 117 and 118: Appendix C13 Hillsborough, Town of
- Page 119 and 120: 4.00 3.90 3.80 3.70 3.60 3.50 Town
- Page 121 and 122: Los Trancos Woods Northern, Blue Oa
- Page 123 and 124: Appendix C15 Menlo Park, City of
- Page 125 and 126: 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6
- Page 127 and 128: Mid Peninsula (Belmont) Water Servi
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- Page 133 and 134: City of Milpitas Water Service Area
- Page 135 and 136: Appendix C19 Mountain View, City of
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- Page 157 and 158: City of Santa Clara Water Service A
- Page 159 and 160: Appendix C27 Skyline County Water D
- Page 161 and 162: 0.35 0.30 0.25 0.20 0.15 Skyline Co
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- Page 167 and 168: 28.0 27.0 26.0 25.0 24.0 23.0 City
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