Which statement about outdoor storage tanks is correct?

Which statement about outdoor storage tanks is correct?

• A. They must be kept at least 20 feet from a building.
• B. They must be kept at least 40 feet from a building.
• C. They must be kept at least 60 feet from a building.
• D. They must be kept at least 10 feet from a building.

Answer: (A)

The important idea here is keeping outdoor storage tanks far enough away from buildings to limit fire spread and give responders room to operate. A 20-foot separation provides a practical safety margin: if a venting event or a tank fire occurs, the distance helps prevent radiant heat from affecting the nearby structure, reduces the chance of ignition transferring to the building, and keeps space available for firefighting access and emergency shutoffs. While smaller distances would save space, they increase risk, and larger distances can be more restrictive than necessary for typical small to medium tanks. This minimum distance is a common standard in practice for outdoor tanks, though the exact requirement can vary with tank size, contents, and local codes. Always follow the specific code for the situation, but 20 feet is the standard minimum in this context.

The important idea here is keeping outdoor storage tanks far enough away from buildings to limit fire spread and give responders room to operate. A 20-foot separation provides a practical safety margin: if a venting event or a tank fire occurs, the distance helps prevent radiant heat from affecting the nearby structure, reduces the chance of ignition transferring to the building, and keeps space available for firefighting access and emergency shutoffs. While smaller distances would save space, they increase risk, and larger distances can be more restrictive than necessary for typical small to medium tanks. This minimum distance is a common standard in practice for outdoor tanks, though the exact requirement can vary with tank size, contents, and local codes. Always follow the specific code for the situation, but 20 feet is the standard minimum in this context.