How should USTs be marked to indicate they contain hazardous substances?

USTs should be marked with proper labeling and signage that meets regulatory standards to ensure safety and compliance. This requirement helps to communicate crucial information regarding the contents of the tank, particularly when those contents are hazardous substances. Proper labeling indicates the type of substance stored, emergency procedures, and safety measures that should be taken in case of a leak or spill. By adhering to regulatory standards, facility operators ensure that all safety protocols are observed, which protects both personnel and the environment.

This approach is fundamental to risk management in handling hazardous materials, providing clear and visible cues to anyone who may interact with the UST. This includes emergency responders and maintenance personnel, who need to be aware of the hazards present. Proper signage not only facilitates safe operations but also plays a critical role in environmental protection.