What is Vapor Monitoring?
Vapor monitoring is a stand-alone form of leak detection (not subject to periodic tank or line tightness testing) that uses monitoring wells as testing locations for leaking product. Tiny pores between individual grains of soil allow the petroleum products to become volatile and move through the soil (vaporize) in the excavation zone (UST pit). Vapor monitoring wells are placed in strategic locations so they can intercept any petroleum vapors that may be moving through the soil due to a leak. Vapor monitoring can detect leaks in tanks and piping.