In an underground storage tank system, what is an interstice?

The interstice refers specifically to the space between the two tanks of a secondary containment system. In an underground storage tank (UST) system, secondary containment is designed to prevent the release of stored substances into the environment in the event of a leak or failure in the primary tank. The area known as the interstice collects any potential leaks that may occur from the inner tank, thus serving a critical role in environmental protection and compliance with regulations. By monitoring this space, operators can detect leaks early and take appropriate action to mitigate potential contamination.

Understanding the concept of an interstice is vital for operators to ensure the integrity of the UST system, as well as to adhere to safety and environmental guidelines.