How many porta potties for a 500-person concert with food trucks?

For a 500-person concert with food and alcohol for ten hours, start with 12 to 15 standard portable toilets, plus one ADA-compliant unit. The basic planning guideline for a four-hour event is about one unit per 50 to 75 people, but you must add more for the longer duration, alcohol consumption and the presence of food trucks, which increase usage. A dedicated ADA-compliant portable toilet is required by the ADA 5 percent cluster rule where multiple units are clustered.

Upgrading a section to deluxe portable toilets with sinks is a good mid-tier option that adds handwashing. A small restroom trailer for VIPs provides flushing toilets and sinks, but for a one-day event the logistics of power, leveling and water hookups may not be worth the extra cost and coordination unless VIP experience is a high priority. Ensure all units are placed on level ground with clear truck access for the single service visit you'll need during or after the event.

The permit office requires a restroom plan that matches the event's specifics. Jules gave the unit count, but I check the service schedule. A ten-hour event with alcohol and food requires a service visit during the event, not just after. The holding tank in a standard portable toilet will reach capacity. Coordinate with the rental company for a mid-event pump-out. A restroom trailer requires a generator and level ground, which adds to the setup complexity for a one-day event. The cost difference between a deluxe portable toilet and a trailer is driven by the number of fixtures and the required support services.