13.01 What is typically monitored in fuel tank and piping systems?

The monitoring of fuel tanks and piping is determined by US EPA requirements, State, and Local regulations. The points of monitoring typically include the following:

• tank gallons, tank temperature compensated gallons, ullage (empty space in the tank), fuel inches, water inches, water gallons, tank temperature.

• tank interstitial leak detection, or hydrostatic monitoring for wet interstitial systems, or vaccum monitoring for vacuum systems

• tank sump liquids, and double wall tank vacuum, or hydrostatic

• double wall piping interstitial dry, hydrostatic, or vacuum