California ICC UST Inspector Practice Exam

By December 31, 2003, all UST systems must have installed which of the following?

1. Spill bucket with 5-gallon capacity

2. Secondary containment piping on vent lines

3. Striker plate

4. Under-dispenser containment

The correct answer is: Secondary containment piping on vent lines

The requirement for UST (Underground Storage Tank) systems to have secondary containment on vent lines by December 31, 2003, is an essential safety measure to prevent leaks and spills into the environment. Secondary containment refers to an additional barrier that provides an extra layer of protection against the release of hazardous materials. Specifically, it helps contain any potential leaks or spills from the primary containment system. In the context of vent lines, secondary containment is critical because these lines, if not properly contained, could allow vapors or liquids to escape, contributing to environmental contamination. While spill buckets, striker plates, and under-dispenser containment may play important roles in UST systems, the specific emphasis on secondary containment for vent lines highlights regulatory progress aimed at ensuring comprehensive management of potential releases. Each of these measures addresses different risks associated with UST operations, but the regulatory focus leading up to 2003 was clearly geared towards comprehensive secondary containment solutions as a standard practice to enhance safety and environmental protection in the industry.