From what point should distances for underground or mounded ASME containers be measured?

Distances for underground or mounded ASME containers should be measured from the container surface. This measurement is critical for safety and regulatory compliance, as it ensures that all requisite distances from property lines, buildings, and other important structures are appropriately observed.

When considering safety aspects, the surface of the container is the most relevant point because it represents the actual area that could interact with the surrounding environment in case of a leak or incident. This ensures that any potential hazards related to pressure relief, venting, or other operational considerations are adequately addressed, maintaining a safe distance from other structures or areas of human habitation.

Measuring from other points, such as the top of the container, ground level, or the discharge point could lead to non-compliance with safety regulations and guidelines set forth by organizations that oversee safe propane storage.