Which of the following is NOT a type of release detection method?

Release detection methods are critical for monitoring underground storage tanks (USTs) to prevent and identify leaks of hazardous substances. Each method serves the purpose of identifying a release before it can cause significant environmental damage or pose health risks.

Automatic tank gauging involves using electronic systems to monitor the levels of products in the tank and detect discrepancies that could indicate a leak. Inventory control requires systematic tracking of product levels and comparisons against expected usage to identify potential losses. Vapor monitoring detects the presence of vapors in the soil or water, providing another line of defense against unnoticed releases.

In contrast, pipe bending does not qualify as a release detection method. It refers to a physical alteration of the tank’s piping system, which is unrelated to monitoring for leaks. Thus, recognizing and applying appropriate methodologies for release detection is essential for UST operators, as incorrect assumptions about release detection capabilities can lead to lapses in safety and compliance.