Leak Detection

Leak detection encompasses the methods, equipment, and procedures used to identify releases from underground storage tank systems. Federal regulations require all active UST systems to have leak detection in place, with specific requirements varying based on the type of tank, piping, and the date of installation.

Common leak detection methods include automatic tank gauging (ATG) systems that measure product levels and detect inventory variances, statistical inventory reconciliation (SIR), interstitial monitoring for double-walled tanks and piping, groundwater monitoring wells, vapor monitoring, and manual tank gauging for smaller tanks. Each method has specific performance standards for detecting leaks.

Modern leak detection technology has advanced significantly, with electronic sensors, continuous monitoring systems, and remote reporting capabilities becoming standard. The 2015 federal UST regulation updates require periodic testing of leak detection equipment to ensure proper operation. Effective leak detection is the first line of defense against environmental contamination from UST systems.