Performing thorough vapor tight leak testing on a newly installed UST system before back filling is an extremely critical part of the quality control testing process. This is the time when all of the leaks in the primary and secondary systems can be identified, located and repaired without expensive site closure and excavation. Additionally, when the system is prepped for the IOTA test, access points are installed to allow for quick final testing as well as trouble shooting in the event that a portion of the system fails a compliance test or has a positive monitoring event.
IOTA Final Test
Once the fueling system has been completed (everything below grade surface), backfilled, concrete poured, and the system is essentially ready to receive fuel, the final iota test is performed. This provides the installation contractor, general contractor, design engineer, site owner and operator with third party certification that the system is vapor tight before it receives fuel.