California UST System Operator Practice Test

Under-dispenser containment systems are intended to prevent leaks from the piping associated with underground storage tanks (USTs). The requirement for testing these systems for tightness has specific regulatory guidelines.

Typically, under the regulations of the state, under-dispenser containment does not require testing for tightness every three years like some other components do. The emphasis is on maintaining the structural integrity of these containment systems and ensuring that they can effectively hold any leaks that may occur. While initial installation often involves testing for tightness, ongoing periodic testing is generally not mandated unless there are specific indications of a problem or malfunction.

By understanding the context of regulations and practical application regarding containment systems, it becomes clear that maintaining the integrity of the under-dispenser containment is pivotal, rather than adhering to a frequent and mandatory tightness test schedule.