DDW-2025-002023

Utah Department of Environmental Quality
Division of Drinking Water
Minimum Sizing Standards
Date Standard Effective: Mon Mar 03 13:41:39 MST 2025
Peak Day Source Demand per ERC (gal/day): 675
Average Annual Demand per ERC (gal/year): 89,994
Equalization Storage per ERC (gal/day): 247
CEDAR HILLS TOWN WATER SYSTEM PWS ID: UTAH25137
Admin Name: KEVIN LEE ANDERSON
Address: 10246 North Canyon Road
City, State, Zip: Cedar Hills, Utah 84062
Phone: [phone]
Email: [e-mail]
System Type: Community
Population: 10,015
MINIMUM SIZING STANDARD
MINIMUM SIZING STANDARD CALCULATIONS VARIABILITY
Data from these reporting years: 2017, 2018, 2019, 2020,
2021, 2022, 2023
Peak Day Source Demand per ERC (gal/day): 675
Average Annual Demand per ERC (gal/year): 89,994
Equalization Storage per ERC (gal): 247
x
x
x
(1 + 0.0)
(1 + 0.0)
(1 + 0.0)
=
=
=
675
89,994
247
Equalization per ERC (gal): 247
Existing Storage (gal): 2,500,000
ERCs: 3,042
Required Storage w/o Fire Flow: 751,374
Required Fire Storage (gal): 1,260,000
Required Storage w/Fire (gal): 2,011,374
Storage Deficiency: 0
Storage Deficiency (%): 0.0
DWRi WATER USE DATA REPORTED
Year Peak
Day
Source
Demand
(gal/day)
Average
Annual
Demand
(gallons)
ERCs Peak
Demand
per ERC
(gal/day)
Avg
Annual
Demand
per ERC
(gal/year)
Equaliza
tion
Storage
per ERC
(gal/day)
OP
Days
2023 1,463,070 226,205,764 3,042 481 74,360 204 365
2022 1,238,233 198,958,104 2,875 431 69,203 190 365
2021 1,130,702 223,608,732 2,844 398 78,634 215 365
2020 1,916,003 224,387,516 2,838 675 79,074 216 366
2019 1,055,757 216,332,479 3,164 334 68,373 187 365
2018 1,645,547 253,837,929 3,111 529 81,592 224 365
2017 1,622,737 277,990,005 3,089 525 89,994 247 365
Variability:0.115 0.0 0.0 0.0
Year Peak Month Average
(gal/day)
Peak Month Average
per ERD (gal/day)
Ratio of PD/ERC to
Peak Month Avg/ERC
2023 1,005,197 330 1.46
2022 803,065 279 1.54
2021 955,794 336 1.18
2020 860,141 303 2.23
2019 884,317 279 1.19
2018 1,037,993 334 1.59
2017 1,278,702 414 1.27
CAPACITY CALCULATIONS FOR STORAGE
No Storage Deficiency
Peak Day Source Demand per ERC (gpm): 0.47
Existing Source Capacity (gpm): 4,200
ERCs: 3,042
Required Source Capacity (gpm): 1,430
Source Deficiency: 0
Source Deficiency (%): 0.0
No Source Deficiency
CAPACITY CALCULATIONS FOR SOURCES
SYSTEM STORAGE AND SOURCE INVENTORY
Storage ID Storage Name Effective Volume (GAL)
ST001 STORAGE FACILITY ST001 1,500,000
ST002 STORAGE FACILITY ST002 1,000,000
Storage Totals: 2,500,000 GAL
Source ID Source Name Flow Rate (GPM)
WS002 HARVEY WELL 1,200
WS001 UTAH25008 AMERICAN FORK 1,300
WS003 COTTONWOOD WELL 1,700
Source Totals: 4,200 GPM