HomeMy WebLinkAboutDDW-2024-010235COMMUNITY
38,000
Phone: 801-774-1090
Emergency Phone:
ESORENSEN@ROYUTAH.ROG
Date Standard effective
Peak Day Source Demand per ERC (gal/day)
Average Annual Demand per ERC (gal/day)
Equalization Storage per ERC (gal/day)
Data from these reporting years 2018 to 2020
Max Peak Day Source Demand per ERC (gal/day)466 x 32%=615
Max Average Annual Demand per ERC (gal/day)107,333 x 27%=136,035
Max Equalization Storage per ERC (gal/day)294 x 27%=373
DWRi WATER USE DATA REPORTED
Data Year Peak Day
Source
Demand
(gal/day)
Average Annual
Demand
(gallons)
ERCs Op
Days
2020 5,871,835 1,158,087,488 12,591 365
2019 4,431,574 1,108,382,177 12,533 365
2018 4,500,002 1,388,604,261 12,478 365
Variability 1%
Data Year Peak Month
Average
(gal/day)
Peak Month
Average per ERC
(gal/day)
Ratio of
PD/ERC
to Peak
Month
Avg/ERC
2020 4,378,807 348 1.3
2019 3,921,144 313 1.1
2018 3,679,909 295 1.2
MINIMUM SIZING STANDARD
Equalization
Storage per
ERC
(gal/day)
615
2/9/2022
MINIMUM SIZING STANDARD CALCULATIONS
373
136,035
Minimum Sizing Standards
Roy City Water System
Population:
System Type:
5460 S 2700 W
EDWARD JAY SORENSON
Division of Drinking Water
Utah Department of Environmental Quality
PWS ID: UTAH29016
ROY, UT 84067
27%
84,687
87,767
32% 27%
240
Variability
Factor
361
354
466
Peak Demand
per ERC
(gal/day)
Avg Annual
Demand per
ERC
(gal/year)
294
232
107,333
0.0%
0.0%
ST005 4000 SOUTH W TANK 2,000,000 GAL WS001 4800 S 1980 W WELL 1,100 GPM
ST001 4800 S 1980 W TANK 2,000,000 GAL WS004 UTAH29023 WEBER BASIN WCDGPM
ST002 5175 S 2425 W TANK 1,000,000 GAL WS005 4000 SOUTH WELL 1,850 GPM
ST006 HILL AIR FORCE BASE 2MG TANK 2,000,000 GAL WS006 5175 S 2425 W WELL 677 GPM
WS007 HILL FIELD WELL REPL-1 1,849 GPM
WS008 UTAH29023 WEBER BASIN WCDGPM
Storage Totals: 7,000,000 GAL Source Totals: 5,476 GPM
SYSTEM STORAGE AND SOURCE INVENTORY
12,591
7,000,000
373
0
Required Storage w/ Fire (gal):
Required Fire Storage (gal):
SYSTEM SOURCE DETAILSSYSTEM STORAGE DETAILS
STORAGE CALCULATION
No Storage Deficiency
Equalization per ERC (gal):
0
5,367,770
675,000
4,692,770
Storage Deficiency:
Required Storage w/o Fire Flow (gal)
ERCs:
Existing Storage (gal):
CAPACITY CALCULATIONS FOR STORAGE
No Source Deficiency
CAPACITY CALCULATIONS FOR SOURCES
STORAGE CALCULATION
Peak Day Source Demand per ERC (gpm) 0.43
Existing Source Capacity (gmp): 5,476
ERCs: 12,591
Required Source Capacity (gpm) 5,378
Source Deficiency (gpm):