Administrative Rules of Montana
Department 17 - ENVIRONMENTAL QUALITY
Chapter 17.56 - UNDERGROUND STORAGE TANKS PETROLEUM AND CHEMICAL SUBSTANCES
Subchapter 17.56.2 - UST Systems: Design, Construction, and Installation
Rule 17.56.204 - SECONDARY CONTAINMENT, UNDER-DISPENSER CONTAINMENT, AND INTERSTITIAL MONITORING
Current through Register Vol. 6, March 22, 2024
(1) Any UST that is replaced or installed after November 26, 2009 must employ:
(2) Any pressurized product piping regulated under this chapter that is installed or replaced must:
(3) If 50 percent or more of the length (measured from the piping terminus at the tank to the nearest point where the product is dispensed or otherwise used) or a pressurized product pipe regulated under this chapter is replaced, then the entire length of product piping must be replaced with secondarily-contained piping. The replacement of a line of product piping from a particular UST does not require the replacement of product pipes connected to other USTs.
(4) Under-dispenser containment must be installed under dispensers when:
(5) If under-dispenser containment is required pursuant to (1) or (4), the containment must:
AUTH: 75-11-505, MCA; IMP: 75-11-509, MCA