OSHA 1926.51: 40 workers, one porta potty enough?

OSHA 1926.51(c) requires more than one portable toilet for 40 workers on a construction site. For 20 to 199 workers, the standard mandates one toilet seat and one urinal per 40 workers. That means 40 workers need at least one standard unit and one portable urinal, or two standard units if urinals aren't used. A single unit for 40 people violates the rule and leads to complaints, sanitation issues, and potential OSHA citations.

Compliance setup: For a typical 40-worker crew, I order two standard units or one standard unit plus a urinal. If the job lasts weeks or months, I add a handwash station with soap and water. For sites with wheelchair users or to meet accessibility, include an ADA-compliant unit per the 5 percent cluster rule.

Service and placement: Weekly service visits are standard for pumping, cleaning, and restocking. In hot weather or with heavy use, I schedule service twice a week. Place units on level ground with clear truck access for the vacuum truck. Staking is crucial in windy areas to prevent tip-overs.

Beyond minimums: For long-term sites or higher comfort, consider deluxe units with flushing and sinks, or a restroom trailer for large crews. These need power, water hookups, and more frequent servicing. Always check local health department rules for additional requirements.

What's your crew size and site setup? I can break down the numbers.