FAQs: Portable Restrooms for Government and Municipal Sites
How many porta-potties does a municipality need?
It depends on the site type and usage. If it’s a construction or public work site, OSHA’s Field Sanitation Standard outlines the minimum quantity requirement based on your project’s crew size.
- 1 restroom required for sites with 20 or fewer workers
- 1 toilet and 1 urinal per 40 workers for sites with 20–199 workers
- 1 toilet and 1 urinal per 50 workers for sites with 200 or more workers
For events and public spaces, such as parks and recreation areas, it is based on estimated attendance and average daily visitors. Kerkstra can help you calculate the right number of units for your specific government need.
Do I need ADA-accessible portable restrooms on my site?
Government-managed sites or sites open to the public generally require ADA-compliant units. It is best practice to have at least one handicap-accessible unit available, regardless of your restroom needs.
How often should portable restrooms be serviced?
Service schedules are typically based on foot traffic, but are usually 1 time a week for moderate-use areas and up to multiple times per week for high-traffic locations or events.
What happens if my site fails an OSHA or compliance inspection?
If your site fails a compliance inspection, it can result in fines, citations, or even work stoppages, affecting your project timeline. To prevent a failed inspection, it’s important to choose a restroom vendor that ensures your units are properly stocked, regularly serviced, and fully documented, so you are always audit-ready.
How do I get started renting portable restrooms for a government or municipal project in Michigan?
Contact Kerkstra directly to discuss your project size, workforce, timeline, site layout, and specific compliance needs. We’ll help you select the right units, establish a service schedule, and ensure all documentation is in place before your project begins.


