SFPUC Wholesale Customer Water Demand Projections ... - BAWSCA

Guadalupe Valley Municipal Improvement District Water Service Area 1
DSS Input Sheet
FINAL INPUT SHEET
Single Family
Commercial
Irrigation
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 110 75% 716 80% 3280 0%
Data for DSS Model - - Base Year 2001
Difference between
Number of Water Use Water Use,
Total Dwelling Units in Census 2000 for Census Block 3012, 3013, 3014, 3015, Census Tract 6001, San Mateo County, California
Category Accounts 2001 MGD Use Profile Water Use Indoor Water Use GVMID
FY. 2001 3 gpd/a 2 2001 Percent gcd gcd
Single Family 364 110 0.04 13.35% 89 67
0 0 0.00 0.00%
GVMID Service
Irrigation 44 3,280 0.14 48.14%
2000 Units
No. Buildings
- Year 2000 3 data
Data Sources / Notes
Commercial 161 716 0.12 38.52%
Area Billing Accounts billing and census
0 0 0.00 0.00%
0 0 0.00 0.00%
0 0 0.00 0.00% Total Housing units = 383 206 -177 Many number of Housing Units under construction in 2000
0 0 0.00 0.00%
All Accounts are Billed as Single Family
Total 568 0.30 100.00%
Total Water Purchased (produced) 4 =
0.34 MGD
Unaccounted For Water (UFW) 5 = 5% Percent From 5 year BAWUA Survey average
Estimated UFW for DSS Model = 7% Percent 7% if actual is < 7%, otherwise = E25
Water Produced for use in DSS Model 0.32 MGD Add UFW to Total Water Use
Peaking Factor
2.70 Provided by Agency or SFPUC Water Master Plan (or NA)
Peaking Factor for DSS Model= 2.7 If NA use default value of 1.6.
- Yellow cells are input to DSS Model
NOTES
1. - Communities served (includes all or portions of) industrial park within the City of Brisbane according to BAWUA survey
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.
Reconcile agency account billing data and census data
Population in Census 2000 for Census Block 3012, 3013, 3014, 3015, Census Tract 6001, San Mateo County, California
GVMID
Estimated Residential
GVMID GVMID Service Area
Census Population Estimated Population Population
2000 2001 2001 Estimated growth in City of Brisbane from 2000 to 2001 (CA DOF Projections): 0.64%
Total Population from Census data = 443 446 Estimated employment growth from 2000 to 2001 (ABAG Employment Projections): 1.73%
3 - Number of accounts is from data provided by water agency for this project (see worksheet with account data in this file) Data Sources / Notes
4 - Total water Purchased (produced) taken from BAWUA for Fiscal Year 2001-2002 or agency if provided.
5 - Unaccounted for Water (UFW) is the percent difference between the total water purchased and the total water use.
Residential Population = 443 446 Residential population shown corresponds to Census Block 3012, 3013, 3014, 3015, Census Tract 6001
Avg. HHS 7 = 1.16
SF Pop = 443 446 446 100.0% Percent of Population that is SF
SF HHS = 1.16
Total 446 100.0%
2000 Census Data for the City of Brisbane
Average household size 2.20 0 Difference in our estimate and average of 2000-2001 and 2001-2002 BAWUA Surveys
Average household size of owner-occupied unit 2.39
Average household size of renter-occupied unit 1.81 Estimate Service Area Dwelling Units for 2001
Homeowner vacancy rate (percent) 6.90 SF Res 385 Equals housing units from cell L21 plus growth in accounts for one year from cell T38
Rental vacancy rate (percent) 4.10
For comparative purposes only
Population and Employment Estimates Corresponding to Service Area
Population
Employment
2000 Census data for Census Blocks 443 NA GVMID
2000 ABAG (jurisdictional) 3,597 8,100 City of Brisbane
2005 ABAG Projection (jurisdictional) 3,870 8,800 City of Brisbane
2000 ABAG (subregional) 3,597 8,100 City of Brisbane
Data Prepared : August 15, 2003 By: B. Skeens 2005 ABAG Projection (subregional) 3,870 8,800 City of Brisbane
Revised: April 8, 2004 2000 Department of Finance Benchmark 3,597 City of Brisbane 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 3,620 City of Brisbane 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 3,640 City of Brisbane 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 685 NA GVMID
FY 2001-2002 BAWUA service area 685 NA GVMID
2001 Employment in Service Area (input to DSS Model) = 4,442 3658 Subtract jobs in Brisbane WD
Definitions / Abbreviations
ABAG Association of Bay Area Governments MF multi family
BAWUA Bay Area Water 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