Does facility conduct leak detection for tank and piping of all on-site UST systems?
Yes– Facility conducts at least one of the following leak detection methods (sources of detailed information on leak detection methods can be found in the NOTE below): • All USTs can use monthly monitoring consisting of one of the following methods or other methods approved by the regulatory agency. • USTs installed on or before December 22, 1988 can temporarily use monthly inventory control and annual tank tightness testing. This is not an acceptable method after December 22, 1998. • USTs installed or upgraded with spill, overfill and corrosion protection can use monthly inventory control combined with tank tightness testing every 5 years. This combined method can be used only until 10 years after the tank has been protected from corrosion or until December 22, 1998, whichever is later. The following are several approved monthly monitoring methods. Check with your state UST program to determine which methods are acceptable in YOUR state. • Automatic tank gauging: This method uses aut
