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What is NOT required to use an Automatic Tank Gauging (ATG) system for release detection?

  1. Make sure the ATG is certified for the types of tanks

  2. Ensure sufficient product amount is in the tank

  3. Test the UST using the ATG at least once every 30 days

  4. California law requires a monthly maintenance system check

The correct answer is: California law requires a monthly maintenance system check

The correct answer highlights that while California law emphasizes the importance of proper maintenance and operation of Automatic Tank Gauging (ATG) systems, it does not specifically mandate a monthly maintenance system check solely for the purpose of release detection. In the context of using ATG systems, the primary requirements focus on ensuring that the equipment is suitable for the tanks being monitored, that there is an adequate amount of product in the tank for accurate readings, and that the system is tested regularly to detect any potential releases. These protocols are critical to maintaining compliance and ensuring that the ATG functions correctly. While regular maintenance is essential for the reliability of the ATG system and is generally encouraged to prevent malfunctions, California regulations do not stipulate it as a strict requirement specifically for release detection purposes. Thus, the answer emphasizes the distinctiveness of operational maintenance from the specific regulatory framework surrounding release detection practices.