Non-Residential Water Demand

Non-Residential Water Demand

Type of Establishment Water Used (gpd)
Airport (per passenger) 3-5
Apartment, multiple family (per resident) 50
Bathhouse (per bather) 10
Boardinghouse (per boarder) 50
       Additional kitchen requirements for nonresident boarders 10
Camp:  
  Construction, semipermanent (per worker) 50
  Day, no meals served (per camper) 15
  Luxury (per camper) 100 - 150
  Resort, day and night, limited plumbing (per camper) 50
  Tourist, central bath and toilet facilities (per person) 35
  Cottage, seasonal occupancy (per resident) 50
Club:  
  Country (per resident member) 100
  Country (per nonresident member present) 25
Factory (gallons per person per shift) 15 - 35
Highway rest area (per person) 5
Hotel:  
  Private baths (2 persons per room) 50
  No private baths (per person) 50
Institution other than hospital (per person) 75 - 125
  Hospital (per bed) 250 - 400
Lawn and Garden (per 1000 sq. ft.) 600
  Assumes 1-inch per day (typical)  
Laundry, self-serviced (gallons per washing [per customer] 50
Livestock Drinking (per animal):  
  Beef, yearlings 20
  Brood Sows, nursing 6
  Cattle or Steers 12
  Dairy 20
  Dry Cows or Heifers 15
  Goat or Sheep 2
  Hogs/Swine 4
  Horse or Mules 12
Livestock Facilities  
  Dairy Sanitation (milkroom) 500
  Floor Flushing (per 100 sq. ft.) 10
  Sanitary Hog Wallow 100
Motel:  
  Bath, toilet, and kitchen facilities (per bed space) 50
  Bed and toilet (per bed space) 40
Park:  
  Overnight, flush toilets (per camper) 25
  Trailer, individual bath units, no sewer connection (per trailer) 25
  Trailer, individual baths, connected to sewer (per person) 50
Picnic:  
  Bathhouses, showers, and flush toilets (per picnicker) 20
  Toilet facilities only (gallons per picnicker) 10
Poultry (per 100 birds):  
  Chicken 5-10
  Ducks 22
  Turkeys 10-25
Restaurant:  
  Toilet facilities (per patron) 7-10
  No toilet facilities (per patron) 2.5 - 3
  Bar and cocktail lounge (additional quantity per patron) 2
School:  
  Boarding (per pupil) 75 - 100
  Day, cafeteria, gymnasiums, and showers (per pupil) 25
  Day, cafeteria, no gymnasiums or showers (per pupil) 20
  Day, no cafeteria, gymnasiums or showers (per pupil) 15
Service station (per vehicle) 10
Store (per toilet room) 400
Swimming pool (per swimmer)  
  Maintenance (per 100 sq. ft.) 10
Theater:  
  Drive-in (per car space) 5
  Movie (per auditorium seat) 5
Worker:  
  Construction (per person per shift) 50
  Day (school or offices per person per shift) 15

Source: Adapted from Design and Construction of Small Water Systems: A Guide for Managers, American Water Works Association, 1984, and Planning for an Individual Water System. American Association for Vocational Instructional Materials, 1982.