Portable Toilet Usage Chart
Portable toilet usage chart on construction sites in Ontario is regulated by the Ministry of Labour of Ontario under the Construction Health & Safety Act and its Regulation 213-91, Section 29 as amended by Regulation 145/00. Under this regulation, the Ministry calls for heated portable toilets with flushing systems and warm water (where possible).
At Pitton Plumbing & Heating Inc in Hamilton, we refer to those units as Single Self-Contained Units and Double Self-Contained Trailers. The Ontario Occupational Health & Safety Act states that the bowl of the toilet must be separate from the holding tank; and that once the waste is flushed, the waste is chemically treated in the holding tank. This regulation also states that a heated unit must be used whenever possible.
The table below demonstrates the regulations set out by the Ontario Occupational Health & Safety Act:
Number of Workers Regularly
Employed at the Project
|Minimum Number of Toilets Required|
|1 – 15||1|
|16 – 30||2|
|31 – 45||3|
|46 – 60||4|
|61 or more||4*|
|*plus one additional toilet for each additional group of 15 or fewer workers|