California ICC UST Inspector Practice Exam

Which statement about enhanced leak detection (ELD) is inaccurate?

1. UST systems near a drilling water well must conduct ELD every 36 months

2. Double wall UST systems near a drilling water well are required to conduct ELD

3. USTs installed after July 1, 2003 must undergo ELD or an inert gas test

4. There are multiple types of 3rd party approved ELD

The correct answer is: There are multiple types of 3rd party approved ELD

The statement about enhanced leak detection (ELD) that is inaccurate involves the assertion regarding the existence of multiple types of third-party approved ELD methods. While it is true that there are various authorized leak detection technologies available, not all of them are recognized or approved by third-party entities. This nuance is critical because the approval process for leak detection systems can be stringent, and not every method qualifies as "third-party approved." In contrast, the other statements are accurate and reflect the regulatory requirements surrounding UST systems. For instance, the requirement for UST systems near a drilling water well to conduct ELD every 36 months ensures that potential leaks are monitored closely due to the proximity to critical water resources. Double wall UST systems are indeed subject to ELD standards as a precautionary measure designed to minimize the risk of contamination. The stipulation that USTs installed after July 1, 2003, must undergo ELD or an inert gas test reflects ongoing advancements in leak detection technology and regulatory updates aimed at enhancing environmental protection. By ensuring that these systems maintain rigorous detection practices, the risk posed to both public health and the environment is significantly reduced.