2025 Nelsen Corporation Catalog - Catalog - Page 433
System Sizing Tables 17
The following information lists estimated water usage for various establishments. Remember that these are only estimates.
Airports (per passenger)
Apartments, Multi Family (per resident)
Camps:
Construction, semipermanent (per worker)
Day with no meals served (per camper)
Resorts, day and night with limited plumbing (per camper)
Tourist with central bath and toilet facilities (per person)
Cottages with seasonal occupancy (per resident)
Country Clubs (per non-resident member)
Dwellings:
Boarding houses (per boarder)
Luxury ( per person)
Multiple family apartments (per resident)
Rooming houses (per resident)
Single family (per resident)
Factories (gal per person per shift)
Hotels with private baths (two persons/room)
Hotels without private baths (per person)
Hospitals (per bed)
Laundries, self-service (gallons/washing/customer)
Motel with bath, toilet and kitchen (per bed space)
Motels with bed and toilet - no kitchen (per bed space)
Parks:
Overnight with flush toilets (per camper)
Trailers with individual bath units (per camper)
Picnic Areas:
With bath houses, showers and flush toilets (per picnicker)
With toilet facilities only (gallon/picnicker)
Restaurants with toilet facilities (per patron)
Restaurants with bars and cocktail lounge (add per person)
Schools:
Boarding (per person)
Day with cafeteria, gymnasium and showers (per pupil)
Day without cafeteria, gymnasium or shower (per pupil)
Service stations (per vehicle)
Stores (per toilet room)
Swimming pools (per swimmer)
Theaters: Indoor or Drive-In (per auditorium seat/car space)
Workers: Construction (per person/shift)
Workers: Office (per person/shift)
GALLONS/DAY
3 to 5
60
50
15
50
35
50
25
Technical & Engineering
TYPE OF ESTABLISHMENT
50
100 to 150
40
60
50 to 75
15 to 35
60
50
250 to 400
50
50
40
25
50
20
10
7 to 10
2
75 to 100
25
15
10
400
10
5
50
15
SOURCE: Adapted from U.S. Public Health Service, 1962 Manual of Individual Water Supplies
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All prices and products subject to change without notice. ©Nelsen Corporation
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