What is the maximum capacity for a regulated UST in Pennsylvania?

In Pennsylvania, the definition of a regulated underground storage tank (UST) typically includes tanks that have a capacity of more than 110 gallons. Tanks that fall below this threshold are often not subject to the same regulatory requirements as those with a capacity exceeding 110 gallons. This guideline was established to ensure that larger tanks, which pose a greater potential risk for leaks and environmental contamination, are monitored and managed under stricter regulations.

The focus on tanks exceeding this threshold reflects a comprehensive strategy to mitigate the risks associated with hazardous substances stored underground, offering a protective measure for the environment and public safety. Conversely, tanks less than or equal to 110 gallons are generally classified differently and are unlikely to meet the criteria that necessitate regulatory oversight.