What determines the maximum burial depth for a steel tank?

The maximum burial depth for a steel tank is primarily determined by the markings provided by the manufacturer, which typically indicate a safe installation depth to ensure the integrity of the tank. In this case, five feet is a common maximum depth that manufacturers specify, reflecting the engineering capabilities and design standards for steel tanks. This depth is crucial for maintaining structural stability, preventing potential corrosion issues, and ensuring compliance with safety regulations.

When manufacturers set these specifications, they consider various factors such as soil composition, potential fluctuations in groundwater levels, and environmental impacts, all of which can affect the long-term performance of the tank. By adhering to these manufacturer guidelines, installers can avoid issues that might arise from improper burial depths, which can lead to tank failure, leaks, or environmental contamination.

The other potential burial depths referenced in the options may not align with these manufacturer guidelines, emphasizing the importance of manufacturer specifications for safe and effective UST installations.