The purpose of Breach of Integrity (BOI) testing is to determine the integrity of the inner and outer wall of a tank, piping, or containment component.

* DEP's rules require breach of integrity testing at the time of system installation and every 5 years thereafter for the following: double-walled Underground Storage Tanks (USTs) with closed interstitial spaces; double-bottomed Aboveground Storage Tanks (ASTs); and double-walled integral piping with a closed interstitial space that is in contact with the soil and connected to USTs or ASTs.

Down Under performs Breach of Integrity Testing on all double walled components using those standards recommended by the component manufacturer and in accordance with other applicable provisions.

* From DEP's "Breach of Integrity Testing Guidance" - 5/28/2011