Application
Description
Water Consumption Per Each Unit (gallon)
Unit Definition
Quantity
Total Consumption Per Day
Each Horse: 10 (add 5 in stables)
Per Horse
Each Milking Cow: 15 (add 15 with drinking cup)
Per Milking Cow
Each Dry Cow: 10 (w/drinking cup add 10)
Per Dry Cow
Livestock
Each Hog: 3
Per Hog
Each Sheep: 2
Per Sheep
100 Chickens in lighted henhouse: 5
Per 100 Chickens
100 Turkeys: 18
Per 100 Turkeys
ASSEMBLY HALLS
2 gallons per seat
Per Seat
BARBER SHOPS
55 gallons per chair per day.
Per Chair
BEAUTY SHOPS
200 gallons per day per operator.
Per Operator
To determine daily make-up in gallons:
1) Multiply boiler horsepower by 4.25
BOILERS
2) Then multiply (1) by hours per day operation
Per 25,000 Btu/hr
3) Then multiply by the percentage operating rating
4) Then subtract the percentage of condensate return
BOWLING ALLEY
175 gallons per lane
Per Lane
CARWASH
3.5 to 4 GPM
Per Carwash
CASINO HOTELS
450 gallons per room, per day
Per Room
CLUBS
Showers X 600 GPD. Lavatories X 150 GPD. Meals X 4 gallons
COOLING TOWERS
1) Multiply the tonnage by 4 (this includes 2 gallons per ton hour evaporation and 2 gallons per ton hour bleed off)
Per 100 Tons of Cooling Throough Evaporation
2) Then multiply (1) by the hours per day of operation
DEPARTMENT STORES
0.215 gallons per day per square foot of sales area
Per Square Foot
DORMITORIES
Estimate 40 gallons per person per day total water usage. Estimate 16 gallons per person per day hot water only
Per Person
FACTORY
Factory - 16 GPD per employee not including process
Per Employee
GOLF CLUB
130,000 GPD Per Course
Per Course
HOTELS
350 GPD per guest room (hot and cold)
Hot only 225 GPD per guest room
HOSPITALS
250 GPD per bed for total water usage
Per Bed
170 GPD per bed for hot water only
HYDROPONICS
1/4 gallon to 1/2 gallon per minute (1 to 2 liter's) for each grow tube
Per Grow Tube
Flow rate - divide capacity of machines by 2
LAUNDRY (Washateria)
Gallons per cycle – multiply pounds of laundry by 2-1/2
Per Full Load
Total daily usage - gallons per cycle X 2 loads per hour X hours of operation X number of machines
NURSING HOMES
75 GPD per bed for total water usage. 50 GPD per bed for hot water only
OFFICE BUILDING
15 GPD per person for total water usage
2 GPD per person for hot water only. NOTE: Non-medical use
OIL REFINERY
80,000 gallons per day per 100 barrels of crude processed
Per 100 Barrels
PACKING HOUSE
6 GPD per Hog to 12 GPD per Steer slaughtered
Per Animal
POULTRY PACKING
1 gallon per day per bird
Per Bird
RESIDENCE
60 GPD inside usage per person. 100 GPD per person inside & outside
RESTAURANTS
Estimate 10 GPD per person (total water usage) or estimate 4 GPD per person (hot only). Add 30% water usage for 24-hour restaurants, add 2 GPD per person for cocktail/bar facilities
SCHOOLS
With cafeteria and showers estimate 25 GPD per student (total water usage) or estimate 10 GPD per student (hot only). With cafeteria, no showers, estimate 15 GPD per student (total water usage) or estimate 4 GPD per student (hot only)
Per Student
BOARDING SCHOOLS
80 gpd per student
SERVICE STATION
1000 gallons - 1st bay per day; 500 each additional bay per day
Per Bay
SHOPPING CENTERS
0.16 gallons per day/square foot
Per Square Ft
STOCKYARDS
160-200 gallons per acre total per day
Per Acre
SUGAR REFINERY
1 gallon per pound of sugar
Per Pound of Sugar
TAVERN
20 gallons per seat
THEATERS (Movie)
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