In release detection methods, what does an ATG system monitor?

An Automatic Tank Gauging (ATG) system is designed to monitor fluid levels and detect leaks within underground storage tanks (USTs). It performs continuous or periodic measurements of the product level within the tank, providing data that can indicate how much fuel or other liquids are present. By keeping track of the liquid levels over time, the ATG system can help identify any discrepancies that might suggest a leak, thereby allowing for prompt investigation and remediation if a problem is detected.

This system is crucial for preventing environmental contamination and ensuring compliance with regulatory requirements regarding UST operations. Monitoring fluid levels alone is not sufficient for comprehensive leak detection, but combining this information with specific algorithms allows the ATG to assess potential leaks accurately.

Other methods like monitoring ambient temperatures, groundwater quality, or air quality around the tank serve different purposes and are not what the ATG specifically focuses on. Therefore, the primary function of an ATG system is to monitor fluid levels and detect potential leaks.