California ICC UST Service Technician Practice Exam

The statement regarding the testing frequency of secondary containment that is NOT true is that it must be tested every 12 months. In fact, secondary containment systems for underground storage tanks (USTs) are typically required to undergo testing every 24 months, ensuring that the systems remain effective in preventing leaks and contamination. Continuous monitoring is recommended to provide real-time data on the condition of the containment, which helps in early detection of any potential leaks. Ensuring that no leaks occur is inherently the purpose of secondary containment systems, which are designed to contain any spills or leaks from the primary tank. So, while it's crucial for secondary containment to be regularly tested and monitored, the assertion that it must be tested every 12 months is not aligned with standard requirements.