How many feet around the dispensing unit must be kept free of debris and combustible materials?

The requirement to keep a certain distance around a dispensing unit free of debris and combustible materials is primarily to ensure safety and minimize the risk of fire hazards and accidents. The correct answer, which indicates a distance of 10 feet, reflects industry standards and safety regulations aimed at protecting both the personnel working near these units and surrounding facilities.

Keeping a 10-foot radius clear ensures that any potential leaks or spills of LP gas do not come into contact with flammable materials, thus reducing the risk of ignition and fire spread. This distance allows for adequate ventilation, which is essential in helping dissipate any gas that might escape, further preventing dangerous buildup of combustible gases in the area.

In practical terms, this requirement underscores the importance of maintaining a clean and safe environment around fueling stations and dispensing units and adheres to safety codes established for public and employee protection in environments where flammable gases are handled.