What action should be taken if a UST system fails a leak test?

When a UST system fails a leak test, the most appropriate action is to conduct repairs and retest the tank. This response is essential because a failed leak test indicates that the system may not be secure and could pose a risk of environmental contamination and safety hazards. Retesting after necessary repairs ensures that the tank is functioning correctly and complies with regulatory standards.

Conducting repairs is crucial as it addresses the root cause of the failure, whether that be due to structural issues, faulty components, or other malfunctions. After making repairs, a retest is necessary to confirm that the integrity of the UST system has been restored and that it can safely store regulated substances without leaking.

Other actions, such as continuing to operate the tank or merely notifying staff to observe for leaks, would not address the immediate issue effectively and could lead to environmental harm or potential legal consequences. Documenting the failure and waiting for resolution does not resolve the issue and could leave the UST system vulnerable to ongoing leaks. Thus, the correct and best practice involves immediate action through repairs followed by retesting to ensure compliance and safety.