Define "release detection" for UST systems.

Release detection refers specifically to the methods employed to identify whether a leak has occurred in a tank or piping associated with underground storage tank (UST) systems. This is a critical component in environmental protection and regulatory compliance, as leaks can lead to soil and groundwater contamination. Effective release detection methods enable operators to promptly identify and address potential leaks, thus minimizing the risk of environmental damage and ensuring the integrity of the UST system.

While monitoring fuel levels in UST installations, employing emergency shut-off devices, and testing tank integrity during installation are all important aspects of UST management, they do not directly pertain to the leak detection process. Monitoring fuel levels provides information on tank content but does not specifically indicate a leak. Emergency shut-off mechanisms serve to mitigate risk during emergencies rather than detect leaks. Testing tank integrity is a preventive measure typically conducted at installation or during maintenance and does not constitute ongoing leak detection. Therefore, the focus of release detection remains on identifying existing leaks in order to protect the environment and public health.