What is not a characteristic of decommissioning an UST?

In the context of underground storage tank (UST) decommissioning, it is essential to clarify what this process typically entails. Decommissioning an UST involves taking the tank out of operation, either temporarily or permanently, in a manner that ensures safety, compliance with regulations, and protection of the environment.

The option indicating it can involve services to maintain tank operation is not aligned with the decommissioning process itself. Decommissioning signifies that the tank is no longer in use, and therefore, activities aimed at maintaining or ensuring its operational capability contradict the primary goal of this process. Instead, the focus during decommissioning is on safely closing the tank, properly managing any remaining contents, and adhering to mandated regulations.

The other aspects are noteworthy in understanding the decommissioning process. It can indeed be performed temporarily or permanently, emphasizing the flexibility in how a UST is managed regarding its operational status. Compliance with regulatory guidelines is a crucial element of decommissioning, ensuring that all legal requirements are met to minimize potential risks to public health and the environment. Finally, decommissioning inherently leads to the tank being taken out of operation, bringing a definitive end to its use.