To readily recognize a leak, know what propane smells like. Propane leak detectors, similar to Carbon Monoxide detectors, are available.
If you smell a leak, immediately evacuate everyone from the building and call Wilson Supply or the fire department from your neighbor's phone. DO NOT remain in the building, use the telephone or light switches or try to determine the source of the leak by yourself. Be aware of where gas service lines are located, especially when working in your yard. Water can damage the internal safety mechanism in the gas controls of an appliance. If you suspect that your appliance gas controls may have gotten wet (because of flooding, for example), have a trained technician replace them immediately.