Underground Storage Tank (UST) Designated Operator A Certification Practice Test

Overfill prevention systems in Underground Storage Tanks (USTs) play a crucial role in ensuring environmental safety and compliance by preventing spills and overfilling during product delivery. These systems are designed to activate when the tank reaches a certain capacity threshold, stopping or controlling the inflow of fuel to avoid excess filling.

By having an effective overfill prevention system in place, USTs help mitigate the risks of fuel entering the surrounding environment, which can cause soil and groundwater contamination. This is particularly important because overfilling can lead to significant environmental hazards and regulatory violations.

Monitoring the amount of fuel being delivered and managing the tank's capacity are key components of these systems, contributing to safe operations and environmental responsibility in fuel management. This function is essential for ensuring that USTs operate within safe limits and adhere to regulations that protect public health and the environment.