The Occupational Safety and Health Administration (OSHA) requires that lavatories be available to workers at construction jobsites.
Applicability: construction jobsite
Parameters:
(1) number of workers at the jobsite
(2) availability of sanitary sewer
(3) availability to nearby toilet facilities
Requirements:
(1) There are sufficient toilets for the number of workers (see below).
(2) There is an adequate means of handwashing after use of the lavatory.
(3) The ready availability to nearby toilet facilities may be sufficient.
(4) If a sanitary sewer connection is not available, then the toilet may be a privy, chemical toilet, recirculating toilet or combustion toilet.
(5) Sewage from the toilets should not contaminate ground or surface water.
Number of Workers
Number of Toilet Seat(s) and Urinal(s)
1 to 20
1 each
21 to 200
1 each per 40 workers
201 or more
1 each per 50 workers
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Specialty: Infectious Diseases