500-person festival, mostly women. How many more porta potties?

Yes, you need more units than the standard guideline for a 500-person festival that is mostly women. The one unit per 50 people chart is a starting point for a mixed crowd. For a crowd that is mostly women, plan for more units.

A typical planning guideline is about one standard unit per 50 to 75 people for a four-hour event. Your event is six hours, with alcohol and food, which also adds to the need. For a crowd that is mostly women, you should add units. I would not just order ten units based on the chart. I would add more.

Your plan for a cluster with an ADA-compliant portable toilet and a handwash station is correct. The ADA cluster rule applies here. Ensure good truck access for the service visit. For a one-day event, you will not need weekly service, but the units must be serviced before and after the event. The cost drivers are the number of units, the event duration, and the need for an ADA unit and handwashing.

Yes, a mostly female crowd requires more units than the standard guideline. Hector is right about adding units, but here's the math: for 500 people over six hours with alcohol and food, the baseline is already higher than one per 50. Women use restrooms more frequently and take longer, so plan for at least 12, 15 standard units instead of 10. Your cluster must include one ADA-compliant unit per the ADA 5 percent cluster rule. Also, place handwash stations at every cluster, not just one, to reduce lines. Check with the city park permit office, some require specific unit counts based on event type and duration.