What is a key requirement for UST owners during site closure?

Documenting the closure in accordance with regulations is essential because it ensures compliance with federal, state, and local environmental laws. These regulations often require a detailed record of the closure process, including the removal of the underground storage tank, any required cleanup of contaminated soil or groundwater, and the final disposition of the tank and its contents. This documentation serves multiple purposes: it provides a clear audit trail for regulatory agencies, helps protect public health and the environment, and can be vital for future property transactions or developments. Moreover, proper documentation can help prevent legal issues related to environmental liability or contamination, making it a foundational aspect of responsible UST management during site closure.