How is a UST system's overfill prevention achieved?

A UST system's overfill prevention is primarily achieved by installing overfill alarms or automatic shutoff devices. This approach is crucial because these systems provide a proactive measure to prevent spills during the filling process. Overfill alarms alert personnel when the tank reaches a certain level, allowing them to stop the filling process before an overflow occurs. Automatic shutoff devices can stop the flow of fuel into the tank as it approaches its maximum capacity, thereby ensuring that the tank does not exceed safe limits.

Utilizing these devices enhances safety and environmental protection by minimizing the risks associated with fuel spills, which can contaminate soil and groundwater. Regulatory compliance often mandates the use of such technology, making them a standard practice within the industry to manage the potential hazards associated with USTs.