California ICC UST Inspector Practice Exam

Which condition exempts an emergency generator tank system located in a below-grade structure from certain requirements?

1. The tank is above the surface of the floor for visual inspection

2. The storage structure is not compatible with the stored product

3. The tank is inspected less than once a month

4. The tank has a cumulative capacity of less than 1,500 gallons

The correct answer is: The tank has a cumulative capacity of less than 1,500 gallons

An emergency generator tank system located in a below-grade structure is exempt from certain requirements when the tank has a cumulative capacity of less than 1,500 gallons. This regulation is designed to recognize the lower risk associated with smaller tanks, as they typically pose less environmental and safety concerns compared to larger storage systems. Consequently, tanks with a capacity under this threshold may not need to comply with the same rigorous inspection and monitoring requirements imposed on larger tanks, as the potential for significant leaks or spills is inherently reduced. The rationale behind this exemption is grounded in the understanding that smaller tanks are easier to manage and can be less likely to result in substantial environmental impact. As a result, this specific capacity limit helps streamline regulatory compliance for facilities that use tanks rated below this volume while still maintaining a focus on safety and environmental protection.