Manual tank gauging can be the sole means of leak detection for tanks that are up to how many gallons in capacity?

Manual tank gauging is a method used to detect leaks in underground storage tanks (USTs), and specific regulations dictate the capacity limits for which this method can be used as the sole means of leak detection. For tanks that have a capacity of up to 550 gallons, manual gauging is permissible as the only method for monitoring leaks. This limit is established to ensure that leak detection measures are effective for smaller tanks, as the potential for environmental impact can increase with larger capacities.

Tanks larger than this capacity typically require more sophisticated leak detection methods to ensure compliance with environmental regulations and to protect public health and safety. Therefore, the specification of 550 gallons is critical for operators to know, as it directly influences how they manage and monitor their storage tanks. Understanding the capacity threshold helps operators choose appropriate leak detection methods and comply with regulatory requirements.