California ICC UST Service Technician Practice Exam

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What type of storage tanks does the leak detection requirement apply to?

  1. Only aboveground tanks

  2. Single wall tanks

  3. Double wall tanks

  4. Vacuum tanks

The correct answer is: Single wall tanks

The leak detection requirement applies specifically to single wall tanks due to their construction design. Single wall tanks are more susceptible to leaks because they do not have an additional layer of protection, unlike double wall tanks, which feature an inner and outer wall providing an extra containment layer. This means that any leaks from the tank are not contained and can lead to environmental hazards or regulatory violations. In California, stricter regulations are in place for single wall tanks to ensure that any potential leaks are detected quickly, minimizing the risk of contamination. This is why leak detection systems are mandatory for single wall tanks, as these systems play a critical role in safety and environmental protection. The other types, such as double wall tanks, already have an inherent mechanism for leak prevention due to their design, and thus are subject to less stringent leak detection requirements.