Do I need an ADA porta potty at my event, and how many?

Yes, you need at least one ADA-compliant portable toilet for your community 5K event. The ADA Standards for Accessible Design mandate that when portable toilets are clustered together, at least 5 percent must be accessible. Since your event will have a cluster of units, one ADA unit is the minimum requirement, and your special event permit from the city will specify this.

For 300 people at a few-hour event like a 5K, a common planning guideline is to start with one unit per 50 to 75 people. This means you should have four to six total units, which includes the required ADA-compliant unit. If you are serving food or alcohol, you will need more units because usage increases. The total number of units also depends on the event duration and the demographics of your crowd.

Place all units, including the ADA unit, on level ground with a clear path for access. The ADA unit requires a turning space for a wheelchair. Ensure the vacuum truck can park within about 25 feet for servicing. Weekly service is standard; the rental company will pump the holding tanks, add deodorizer, and restock supplies. Confirm the final count and placement with both your rental company and the city permit office to avoid delays.

Kim covered the basics, but check your city's specific ADA cluster rule wording. Some cities require one ADA unit per cluster regardless of size, even if 5% would round to zero. Your permit office will verify the ADA unit has the International Symbol of Accessibility and a clear path on firm ground, grass is fine if it's dry and level. Also, confirm service timing: for a one-day event, schedule pumping after the event ends, not mid-day, to avoid disruptions. If your 5K has a separate finish line area, consider a second cluster there with its own ADA unit if it's more than 200 feet from the main cluster.

Priya is right about checking your city's exact wording, but also confirm the ADA unit's turning space requirement: a 60-inch diameter circle or T-shaped space on firm, stable ground per the 2010 ADA Standards. The rental company should verify this during placement. For a 5K with a separate finish line, if that cluster is more than 200 feet away, it needs its own ADA unit, the 5 percent rule applies per cluster location. Service timing matters: schedule the pump-out after the event, not during, to avoid closing units mid-race. If the park has uneven terrain, request the rental company use leveling blocks for the ADA unit to meet the slope requirement.