On July 15, 2015, the United States Environmental Protection Agency (EPA) published a final rule significantly expanding its program for underground storage tank (UST) systems that store petroleum or hazardous substances.
The final rule is lengthy and detailed but focuses on several areas in particular, such as:
- Expanded secondary containment requirements for new UST systems or existing system components being replaced;
- Expanded operation and maintenance requirements, including periodic inspections and testing of UST system components;
- Expanded requirements to confirm compatibility and notify EPA before switching a UST system to store newer fuels such as ethanol blends and biodiesel;
- Operator training requirements for site owners, managers, and employees; and
- Release detection requirements for previously-deferred UST systems storing fuel for emergency power generators.
States that currently have EPA-approved UST regulations have three years to revise their regulations and have them approved by EPA as meeting the revised federal regulations.
EPA’s website contains a summary of the final rule and other materials that can be useful tools for understanding the new requirements and their applicability.