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1910.120(n)(1) Potable Water
1910.120(n)(1)(i)
An adequate supply of potable water shall be provided on the site.
1910.120(n)(1)(iii)
Any container used to distribute drinking water shall be clearly marked as to the nature of its contents and not used for any other purpose.
1910.120(n)(1)(iv)
Where single service cups (to be used but once) are supplied, both a sanitary container for the unused cups and a receptacle for disposing of the used cups shall be provided.
1910.120(n)(1)(ii)
Portable containers used to dispense drinking water shall be capable of being tightly closed, and equipped with a tap. Water shall not be dipped from containers.
1910.120(n)(2) Nonpotable Water
1910.120(n)(2)(i)
Outlets for nonpotable water, such as water for firefighting purposes shall be identified to indicate clearly that the water is unsafe and is not to be used for drinking, washing, or cooking purposes.
1910.120(n)(2)(ii)
There shall be no cross-connection, open or potential, between a system furnishing potable water and a system furnishing nonpotable water.
1910.120(n)(3) Toilet Facilities
1910.120(n)(3)(i)
Toilets shall be provided for employees according to Table H-120.2.

TABLE H-120.2. -- TOILET FACILITIES
Number of employees Minimum number of facilities
20 or fewer One
More than 20, fewer than 200 One toilet seat and 1 urinal per 40 employees
More than 200 One toilet seat and 1 urinal per 50 employees
1910.120(n)(3)(iii)
Hazardous waste sites, not provided with a sanitary sewer, shall be provided with the following toilet facilities unless prohibited by local codes:
1910.120(n)(3)(iii)(A)
Chemical toilets;
1910.120(n)(3)(iii)(B)
Recirculating toilets;
1910.120(n)(3)(iii)(C)
Combustion toilets; or
1910.120(n)(3)(iii)(D)
Flush toilets.
1910.120(n)(3)(iv)
The requirements of this paragraph for sanitation facilities shall not apply to mobile crews having transportation readily available to nearby toilet facilities.
1910.120(n)(3)(v)
Doors entering toilet facilities shall be provided with entrance locks controlled from inside the facility.
1910.120(n)(3)(ii)
Under temporary field conditions, provisions shall be made to assure not less than one toilet facility is available.
1910.120(n)(4) Food Handling
All food service facilities and operations for employees shall meet the applicable laws, ordinances, and regulations of the jurisdictions in which they are located.
1910.120(n)(5) Temporary Sleeping Quarters
When temporary sleeping quarters are provided, they shall be heated, ventilated, and lighted.
1910.120(n)(6) Washing Facilities
The employer shall provide adequate washing facilities for employees engaged in operations where hazardous substances may be harmful to employees. Such facilities shall be in near proximity to the worksite; in areas where exposures are below permissible exposure limits and which are under the controls of the employer; and shall be so equipped as to enable employees to remove hazardous substances from themselves.
1910.120(n)(7) Showers and Change Rooms
When hazardous waste clean-up or removal operations commence on a site and the duration of the work will require six months or greater time to complete, the employer shall provide showers and change rooms for all employees exposed to hazardous substances and health hazards involved in hazardous waste clean-up or removal operations.
1910.120(n)(7)(i)
Showers shall be provided and shall meet the requirements of 29 CFR 1910.141(d)(3).
1910.120(n)(7)(iii)
Showers and change rooms shall be located in areas where exposures are below the permissible exposure limits and published exposure levels. If this cannot be accomplished, then a ventilation system shall be provided that will supply air that is below the permissible exposure limits and published exposure levels.
1910.120(n)(7)(iv)
Employers shall assure that employees shower at the end of their work shift and when leaving the hazardous waste site.
1910.120(n)(7)(ii)
Change rooms shall be provided and shall meet the requirements of 29 CFR 1910.141(e). Change rooms shall consist of two separate change areas separated by the shower area required in paragraph (n)(7)(i) of this section. One change area, with an exit leading off the worksite, shall provide employees with a clean area where they can remove, store, and put on street clothing. The second area, with an exit to the worksite, shall provide employees with an area where they can put on, remove and store work clothing and personal protective equipment.

Related Code Sections

1910.120(n)(6) Hazardous Materials, Washing Facilities
The employer shall provide adequate washing facilities for employees engaged in operations where hazardous substances may be harmful to employees ...
1910.120(n)(3)(iv) Hazardous Materials,
The requirements of this paragraph for sanitation facilities shall not apply to mobile crews having transportation readily available to nearby toilet ...