DDW-2025-002058

System Number 18021
1.1 Indoor Water Use
Number of residential connections - - - - - - - - - - -- - - - - - - - - - - - - - - - - - -- - - - - - - - -16,733
Number of other connections - - - 756 ERCs of other connections 4,819
Total Equivalent Residential Connections (ERCs)21,552.0
gpd/ERC Total (gpm) Gallons/ERC Total (gallons)
800 11,973.3 400 8,620,800
1.2 Outdoor Water Use
Is the drinking water used for outdoor irrigation?
Residential ERCs using drinking water for irrigation - - - - - - - - - - - - > > >16733
Percentage of Residential ERCs using DW for irrigation - - - - - - - - - - - - > > >100%Map Zones
Average irrigated acreage per residential connection - - - - - - - - - - - - > > >0.10 1
Total irrigated acreage of other connections (park, school, etc.)- - - - - - - - - - - - > > >50.00 2
Irrigation zone 4 3
4
5
6
gpd/ERC Total (gpm) Gallons/ERC Total (gallons)
570 6,824.3 285 4,907,958
1.3 Fire Flow Water Use
Does the water system provide fire protection?
Maximum fire flow demand (in gpm) for water system or pressure zone 2,500
Maximum fire suppression duration (in hours) for water system or pressure zone 2
Required Fire Suppression Storage (in gallons) - - - - - - - - - - - - - - - - - - - - > > >300,000
2. Summary of Water System Capacity Requirements
gpd/ERC Total (gpm) Gallons/ERC Total (gallons)
1,370 18,797.6 685 13,828,758
2.1 Does this system have adequate source capacity (per R309-510-7)?
Required Source Capacity 18,797.6 gpm
Existing Source Capacity 23,950.0 gpm
Source Capacity Deficit None gpm
Existing % of Total Req'd 127.4%
MIN. REQUIREMENTS FOR INDOOR WATER USE
MINIMUM REQUIREMENTS FOR WATER SYSTEM
Division of Drinking Water — Water System Capacity Calculation Sheet (Last Update 3/30/2017)
*Enter the green cells only*
(Example: water use of 2 factories
equals to water use of 55 homes.)
Source
MIN. REQUIREMENTS FOR IRRIGATION USE
System Name
Source
Taylorsville Bennion Improvement District
Storage
(*Verify req'd fire flow and duration with local fire code officials.* Enter notes
here, e.g. fire official contact info or comments.)
There are 24 other connections that get irrigation
water including parks. Due to the unknown amount
of acreage of connections receiving DW for
irrigation, the number is estimated at 50.
Source (indoor + outdoor)
Storage
Storage (indoor + outdoor + fire)
This source capacity assessment is a general overall system calculation. It may not reflect the variations in individual areas or pressure zones.
Yes No
Yes No
Enter number of non-residential connections, e.g., 2 industrial connections.
Convert "Number of other connections" (Cell E9) to ERCs here. [ERCs of other
connections = peak day demand of other connections in gal per day / 800 gpd]
Enter estimated irrigated acre
Enter total irrigated acres of other
connections here.
Enter fire flow in gpm.
Enter duration in
hours.
Autolink to 4.2 "Total Existing Source Capacity" cell below.
Select Irrigated Zone # from the pick list. See "Irrigation Demands & Map" tab on the bottom of the screen or WaterLink.
Less than 100% indicates: (1) additional source capacity is needed, and
Autolink to 2 "Total Source" cell above.
Source deficit indicates that: (1) additional source capacity is needed,
and (2) source deficiency should be assessed.
TBID Cap Calculation Page 1 of 2 2/21/2025
2.2 Does this system have adequate storage capacity (per R309-510-8)?
Total Required Storage 13,828,758 gal
Existing Storage Capacity 55,500,000 gal
Storage Capacity Deficit None gal
Required Fire Storage 300,000 gal
Not
Applicable
Existing % of Total Req'd 401.3%
3. Transient PWS Indoor Water Use — ERC Calcuation (See R309-510, Tables 510-1, 2, & 4 for other facility types.)
GPD/person* GPD/site or pad Gallons/person
Gallon/site
or pad ERC/site or pad Total # of
sites/pads ERCs
60 0 30 0 0.00 0.0
20 0 10 0 0.00 0.0
5 0 2.5 0 0.00 0.0
N/A 100 N/A 50 0.13 0.0
Number of people per camp site
Source
(GPD/vehicle)
Storage
(Gal./vehicle)
ERC/1000
vehicles served
Vehicles
served/day ERCs
7 3.5 8.8 0.0
4. Data Input for Calculating ERCs, Source and Storage 4.2 Summary - Existing Sources (enter in green cells below)
Total Existing Source Capacity (in gpm)23,950
4.1 Projected ERCs Calculation (optional)WS002 Taylosville East Well 900
Total Projected ERCs 16,763 WS003 Barker Well 1800
Existing Residential Connections 16733 WS004 JVWCD Consecutive Conn 3750
Obligated Future ERCs (enter below)30 WS021 Taylosville West Well 2200
WS023 Atheron East Well 1500
WS024 Atheron West Well 3000
WS027 Pioneer Well 3000
WS028 Valley Well 3800
WS026 Rawson Well 2000
WS029 Swensen Well 2000
Maximum ERCs (assuming indoor use only) 43110
4.3 Summary - Existing Storage Tanks (enter below)
Total Existing Storage Cap. (in gallons)55,500,000
ST001 Low Zone North #1 500,000
ST002 Low zone north #2 1,000,000
ST003 Low Zone North #3 1,000,000
ST004 Low Zone North #4 1,000,000
ST005 Low Zone South #1 4,500,000
ST006 Low Zone South #2 4,500,000
ST007 Low Zone South #3 4,500,000
ST008 Low Zone South #4 4,500,000
ST009 Middle Zone #1 5,000,000
ST010 Middle Zone #2 4,500,000
ST011 Middle Zone #3 5,000,000
The connection with JVWCD can provide upto 9000 gpm if needed.
This is about 3,000 gpm for 3 connection sites. The GPM listed was
adjusted to meet the needs of the system.
RV Park
Facility Type
Source
MINIMUM REQUIREMENTS FOR INDOOR USE
Modern Recreation Camp
Storage
Semi-Developed Camp w/ flush toilets
Taylorsville Bennion Improvement District
Roadway Rest Stop w/ flushometer valves
Semi-Developed Camp w/o flush toilets
This storage capacity assessment is a general overall system calculation. It may not reflect the variations in individual areas or pressure zones.
Is storage deficiency solely due
to fire storage?
Autolink to 4.3 "Total Existing Storage Capcity" cell below.
If applicable, enter number of people per camp site here.
Storage deficit indicates that: (1) additional storage volume is needed,
and (2) storage deficiency should be assessed.
Use this number in Cell I8 ("Number of residential connections") on Page 1 to calculate PROJECTED demand & req'ts (including both existing & future connections).
Diaphragm or air pressure tanks shall NOT be considered effective storage volume for (1) community systems, or (2) NTNC with significant demand UNLESS an exception has been granted.
Autolink to 2 "Total Storage" cell above.
If applicable, use this number in cell I8 or cell I9 on Page 1.
If NO, answer one of question set 2.01 to 2.05 in ESS.
If YES, answer one of question set 2.06 to 2.10 in ESS.
Less than 100% indicates: (1) additional storage capacity is needed, and
(2) storage deficiency should be assessed.
TBID Cap Calculation Page 2 of 2 2/21/2025