E.P.A. Strengthens Underground Storage Tank Requirements to Enhance Prevention and Detection of Leaks

WASHINGTON - The U.S. Environmental Protection (EPA) is strengthening the federal underground storage tank (UST) requirements to enhance prevention and detection of petroleum delivers from USTs which are one of the leading sources of groundwater contamination. EPA's action will strengthen existing requirements and help ensure all USTs in the U.S. meet the same release protection standards.

"These changes will better protect people's health and benefit the environment in communities across the country by improving prevention and detection of underground storage tank releases," said Mathy Stanislaus, assistant administrator of EPA's Office of Solid Waste and Emergency Response. "Extensive and meaningful collaboration with our underground storage tank partners and stakeholders was vital to the development of the new regulations. The revised requirements will also help ensure consistency in implementing the tanks plan among states and on tribal lands."

Secondary containment and operator training requirements of the Energy Policy Act of 2005 will apply to USTs on tribal lands. In addition, these requirements enhance EPA's original 1988 UST regulation by closing regulatory gaps, adding new technologies, and focusing on properly operating and maintaining existing UST systems.

Underground storage tanks are located at hundreds of thousands of facilities across America. Both marketers and nonretail facilities own USTs. Marketers include retail facilities such as gas stations and convenience stores that sell petroleum products. Nonretail facilities include those that do not sell petroleum products, but may rely on their own supply of gasoline or diesel for taxis, buses, limousines, trucks, vans, boats, heavy equipment, or a wide range of other vehicles.

The revised requirements include:
• adding secondary containment requirements for new and replaced tanks and piping;
• adding operator training requirements;
• adding periodic operation and maintenance requirements for UST systems;
• removing past deferrals for emergency generator tanks, airport hydrant systems, and field-constructed tanks;
• adding new release prevention and detection technologies;
• updating codes of practice; and
• updating state plan approval requirements to incorporate these new changes.

States and territories primarily implement the UST program. Many states already have some of these new requirements in place. For others, these changes will set requirements that are more protective.

In developing the final UST regulation, E.P.A. reached out extensively to affected and interested UST stakeholders. E.P.A. carefully considered the environmental benefits of the UST requirements, while balancing those with the potential future costs of compliance for UST owners and operators. For example, E.P.A. is not requiring owners and operators to replace existing equipment, but rather is focusing on better operation and maintenance of that equipment.

The docket for the UST regulation is EPA-HQ-UST-2011-0301 and can be accessed at http://www.regulations.gov when the final regulation is published.

More information about this regulation is accessible at EPA's UST regulation website at www.epa.gov/oust

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