How far must underground tanks be from the nearest property line?

The requirement for the distance that underground tanks must be kept from the nearest property line is designed to ensure safety and access for maintenance, potential emergencies, and to mitigate any hazards associated with the tank's contents. In many codes and regulations, including those that apply to North Carolina, the minimum distance specified is often established at a single foot from the property line.

This provision helps to minimize the potential impact on adjacent properties in case of leaks or failures of the tank while still allowing enough space for the maintenance and inspection of the tank itself. A 1-foot clearance threshold reflects a balance between safety considerations and practical site management ensuring that the surrounding areas remain secure while the tank remains accessible for necessary upkeep.

Thus, the correct understanding of the code reflects the importance of these distances in maintaining safety standards and protecting public health and the environment, which is why the answer of 1 foot is correct.