California ICC UST Inspector Practice Exam

Which of the following is not a requirement specified in HSC 25283.5 to exclude a basement tank from regulation as a UST?

1. The owner or operator maintains a log of tank inspection results

2. All exterior surfaces of the tank can be monitored by direct viewing

3. The owner/operator conducts daily inspections of the tank

4. The floor beneath the tank can be monitored by direct viewing

The correct answer is: The owner/operator conducts daily inspections of the tank

The regulation outlined in HSC 25283.5 establishes specific requirements for excluding a basement tank from regulation as an underground storage tank (UST). One key requirement is that the owner or operator must maintain a log of tank inspection results, providing a formal record that can be referenced to demonstrate compliance with operational standards. Another critical requirement is that all exterior surfaces of the tank must be monitorable by direct viewing. This ensures that any signs of leaks or corrosion can be readily identified, contributing to the safety and regulatory oversight of the tank system. Furthermore, the regulation also states that the floor beneath the tank must be accessible for monitoring by direct viewing. This is essential for ensuring that any potential leaks that may occur can be observed and addressed promptly, thus limiting environmental risks. While conducting daily inspections may seem like a prudent practice, HSC 25283.5 does not mandate it as a requirement for the exclusion of a basement tank from UST regulations. Instead, it emphasizes the ability to visually inspect conditions and maintain records of inspections, rather than specifying the frequency of inspections. This distinction is why daily inspections are not included among the necessary compliance measures outlined in the statute.