300-person concert with food trucks: how many handwash stations?

A 300-person concert with three food trucks needs at least three to four handwash stations for the crowd, plus one dedicated handwash station at each food truck for the staff. The health department requires food service workers to have a dedicated handwashing facility, which cannot be the same as the stations for guests. For the audience, place one handwash station at each cluster of portable toilets and one near the food truck queue area to encourage use.

Health department rules for food vendors
Each food truck operator must provide a self-contained handwash station with warm water, soap and paper towels for their staff. This station is separate from any guest facilities. The health department can shut down a vendor who fails to comply.

Guest handwashing placement
Guests will use handwash stations more if they are visible and convenient. Cluster them with the restrooms so people wash hands after using the toilet. Add an extra station by the food truck area because that is where hand hygiene matters most for preventing illness.

Service and supplies
A handwash station has a fresh water tank and a gray water tank. For a one-day concert, one service visit mid-event may be enough if the tanks are large, but check with your rental company. They will refill the water, restock soap and towels, and empty the gray water tank.

I once saw a festival where the handwash stations ran out of water by midday because the organizer underestimated the use. Guests were unhappy and the health department noted it. Plan for more capacity than you think you need.

What's your concert duration and are you serving alcohol? Those factors change the handwash station count.