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How many portable toilets for 500 people at a beer festival? ✓ Solved

Owen G.asked 2 viewsHow Many UnitsHow manyFestivalAlcoholUnits per personAda cluster rule

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Jules is right about the unit count for guests, but you must also provide separate toilets for staff and volunteers under OSHA 1910.141. For 20 or fewer workers, you need one unit; each group of 15 to 35 needs two. Include these in your sanitation plan for the permit office. A restroom trailer simplifies the ADA requirement, as most models have an accessible stall, but it requires a generator or p Read the full answer

I'm planning an outdoor beer festival for 500 people over five hours. We'll have beer, food trucks, and the city permit office wants our sanitation plan. The site is grass, and a vacuum truck can get within 25 feet of the placement area. I'm thinking about standard units, maybe a deluxe unit or two for VIPs, and definitely an ADA-compliant unit. How many total units do I need for this crowd with alcohol involved? Should I consider a restroom trailer instead of individual units?

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✓ Accepted by Owen G.

Porta Potty Forum Team moderatorUnited States

Jules is right about the unit count for guests, but you must also provide separate toilets for staff and volunteers under OSHA 1910.141. For 20 or fewer workers, you need one unit; each group of 15 to 35 needs two. Include these in your sanitation plan for the permit office. A restroom trailer simplifies the ADA requirement, as most models have an accessible stall, but it requires a generator or power hookup and level ground. Your site's truck access is good, but confirm the service truck can reach the placement on event day without crossing lawns or blocking emergency lanes.

  • Owen G. Thanks, I'll amend the permit application to include separate units for the 30-person staff. I will also confirm with our power team that the generator can run a restroom trailer all day.
2
Hector V.Phoenix, AZ

For a beer festival with 500 attendees over five hours, you need 12 standard portable toilets and one ADA-compliant unit, plus separate units for staff based on their count. Jules missed the service frequency: with alcohol consumption, you must schedule a mid-event pump-out to prevent overflows, as standard units hold only 50-70 gallons. The permit office will verify your service plan includes this extra visit. Restroom trailers require a generator and leveling, which adds complexity on grass. Your truck access is adequate, but confirm the path remains clear during setup.

  • Owen G. Thanks, I'll check with the rental company about adding a mid-event pump-out to the service plan for the standard units and confirm ADA compliance with the permit office.
1
Jules T.Sacramento, CA

For 500 people over five hours with alcohol, you need at least ten standard portable toilets and one ADA-compliant unit. The city permit office will require that ADA-compliant portable toilet because you have a cluster of units; this satisfies the ADA 5 percent cluster rule. Add more units for food service and because crowds drinking beer will use the restrooms more often. A common industry units per person guideline starts at one unit per 50 people for a short event, but with alcohol and a five-hour duration, you should plan for one per 40 people or more. That's why ten standard units is a safe minimum. Deluxe units with a sink are a good upgrade for VIP areas, and each one can replace a standard unit in your count. A restroom trailer is an alternative that provides flushing toilets and sinks, but it needs level ground, a power source, and more fresh water. Your plan should also include separate units for staff and volunteers, following OSHA rules for workers. With your accessible truck path, servicing during the event is possible if needed, but for a five-hour festival, a pre-event delivery and a post-event pickup with a full service is typical. The total cost is driven by the number of units, the rental duration, and any add-ons like handwash stations or extra service visits.

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