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Underground Storage Tanks Compliance Monitoring

RCRA Topics

The Resource Conservation and Recovery Act (RCRA) establishes the authority to regulate underground storage tanks (USTs). A UST system is defined as a tank and any underground piping connected to the tank that has at least 10 percent of its combined volume underground. This definition includes the tank, connected underground piping, any underground equipment, such as values and pumps, and containment systems.

Compliance monitoring activities

EPA and its regulatory partners conduct inspections of USTs. Inspections involve reviewing an USTs:

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