DDW-2021-019970 - 0901a06880ef48e6

Division of Drinking Water — Water System Capacity Calculation Sheet (Last Update 3/30/2017)
*Enter the green cells only*
System Name Tridell Lapoint Water Improvement District System Number 24009
1.1 Indoor Water Use
Number of residential connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 457
Number of other connections - - - 25 ERCs of other connections 281 (Example: water use of 2 factories equals to water use of 55 homes.)
Total Equivalent Residential Connections (ERCs) 738
MIN. REQUIREMENTS FOR INDOOR WATER USE
Source Storage
gpd/ERC Total (gpm) Gallons/ERC Total (gallons)
800 410 400 295200
1.2 Outdoor Water Use
Is the drinking water used for outdoor irrigation?
Residential ERCs using drinking water for irrigation - - - - - - - - - - - - > > > 371
Percentage of Residential ERCs using DW for irrigation - - - - - - - - - - - - > > > 0.811816192560175 Map Zones
Average irrigated acreage per residential connection - - - - - - - - - - - - > > > 0.1 1
Total irrigated acreage of other connections (park, school, etc.) - - - - - - - - - - - - > > > 21 2
(Enter notes here regarding whether and what % of irrigation water is supplied by PWS.) Irrigation zone 3 3
4
5
MIN. REQUIREMENTS FOR IRRIGATION USE 6
Source Storage
gpd/ERC Total (gpm) Gallons/ERC Total (gallons)
488.16 196.959 252.8 146876.8
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 3250
Maximum fire suppression duration (in hours) for water system or pressure zone 3
Required Fire Suppression Storage (in gallons) - - - - - - - - - - - - - - - - - - - - > > > 585000
Uintfire suppressionfire marshal Jeremy Raymond 435-781-6765
2. Summary of Water System Capacity Requirements
MINIMUM REQUIREMENTS FOR WATER SYSTEM
Source (indoor + outdoor) Storage (indoor + outdoor + fire)
gpd/ERC Total (gpm) Gallons/ERC Total (gallons)
1288.16 606.959 652.8 1027076.8
2.1 Does this system have adequate source capacity (per R309-510-7)?
This source capacity assessment is a general overall system calculation. It may not reflect the variations in individual areas or pressure zones.
Required Source Capacity 606.959 gpm
Existing Source Capacity 11400 gpm
Source Capacity Deficit None gpm
Existing % of Total Req'd 18.7821582676919
2.2 Does this system have adequate storage capacity (per R309-510-8)?
This storage capacity assessment is a general overall system calculation. It may not reflect the variations in individual areas or pressure zones.
Total Required Storage 1027076.8 gal
Existing Storage Capacity 1050000 gal
Storage Capacity Deficit None gal
Required Fire Storage 585000 gal
Is storage deficiency solely due to fire storage? Not Applicable
Existing % of Total Req'd 1.02231887625151
3. Transient PWS Indoor Water Use — ERC Calcuation (See R309-510, Tables 510-1, 2, & 4 for other facility types.)
MINIMUM REQUIREMENTS FOR INDOOR USE
Source Storage
Facility Type GPD/person* GPD/site or pad Gallons/person Gallon/site or pad ERC/site or pad Total # of sites/pads ERCs
Modern Recreation Camp 60 0 30 0 0 0 0
Semi-Developed Camp w/ flush toilets 20 0 10 0 0 0 0
Semi-Developed Camp w/o flush toilets 5 0 2.5 0 0 0 0
RV Park N/A 100 N/A 50 0.125 0 0
Number of people per camp site 0
Source (GPD/vehicle) Storage (Gal./vehicle) ERC/1000 vehicles served Vehicles served/day ERCs
Roadway Rest Stop w/ flushometer valves 7 3.5 8.75 0 0

4. Data Input for Calculating ERCs, Source and Storage 4.2 Summary - Existing Sources (enter in green cells below)
Tridell Lapoint Water Improvement District Total Existing Source Capacity (in gpm) 11400
4.1 Projected ERCs Calculation (optional) WS001 white rocks river 11400
Total Projected ERCs 457
Existing Residential Connections 457
Obligated Future ERCs (enter below)
f
Maximum ERCs (assuming indoor use only) 20520
4.3 Summary - Existing Storage Tanks (enter below)
Total Existing Storage Cap. (in gallons) 1050000
ST001 Upper 100,000 100000
ST002 Upper 200,000 200000
ST004 Lower 200,000 200000
ST003 Lower 300,000 300000
(Enter notes here. If additional space is needed, click the "Additional Notes" tab on the bottom of the screen.) ST005 Lower 500,000 250000
(NB 250 K volume was deducted for CT )
Additional Notes
System Name: Tridell Lapoint Water Improvement District System Number: 24009
(Enter additional notes here, for example, water system information related to capacity calculations, etc.)
Irrigation Demands & ERCs
(This reference table is used to automate the calculations in the PWS Capacity Calculation sheet. Do not alter.)
System Name: Tridell Lapoint Water Improvement District System Number: 24009
Zone Peak Day Avg Year Storage IRRIGATION DEMANDS
Demand Demand Reqmt (to be added to indoor and fire flow demands)
3 3.39 1.66 2528 Avg. Yr. Storage Peak
Peak Day (ac-ft/yr Requirement Instantaneous
zone (gpm/irr. ac) per irr. ac.) (gal/irr. ac) (gpm/irr. ac)
1 2.26 1.17 1782 4.52
2 2.8 1.23 1873 5.6
3 3.39 1.66 2528 6.78
4 3.96 1.87 2848 7.92
5 4.52 2.68 4081 9.04
6 4.9 3.26 4964 9.8