When must a UST operator notify the public regarding a release incident?

The most appropriate course of action for a UST operator regarding public notification of a release incident is to inform the public when it poses potential health risks. This is crucial because the primary purpose of notifying the public is to ensure their safety and well-being. If a release incident has the potential to affect public health—whether through contamination of air, water, or soil—prompt communication is essential to mitigate any negative consequences.

In situations where the health risks are significant, the operator is responsible for providing timely information to all affected communities and stakeholders. This allows for the implementation of necessary precautions and protective measures to safeguard public health.

Releasing information solely when a leak is deemed significant does not fully encompass scenarios where even minor releases could pose health risks, hence missing potential contaminants. Notifying only during routine inspections fails to address urgent situations that require immediate action outside of scheduled checks. Immediate notification regardless of risk level can lead to unnecessary panic and misinformation, whereas a measured approach ensures that the response is adequate to the risk involved.