MINIMUM ACTIVITIES REQUIRING THE CERTIFIED UST INSPECTOR’S PRESENCE.

 The certified UST inspector shall be present for the performance of the following activities:

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1. In the case of an UST installation, examination of the excavation prior to the physical placing of the UST system into the ground, the in- ground test of the piping prior to backfilling the piping, and the final tightness test prior to placing the UST system into service;

 

2. In the case of an UST upgrade for tanks, immediately before purging operations begin, immediately before the tank is cut open for entry, the final tightness test prior to placing the UST system back into service and the final inspection of the upgrades provided the inspection does not require entry into an UST by the certified UST inspector;

 

3. In the case of an UST upgrade for piping, the in-ground test of the piping prior to backfilling the piping, and the final tightness test on the upgraded portion of the piping prior to placing the UST system back into service.

 

4. In the case of an UST upgrade for leak detection, the test of the leak detection device before the UST system is put into service;

 

5. In the case of a repair of the tanks, immediately before purging operations begin and immediately before the tank is cut open for entry, and the final tightness test prior to placing the UST system into service;

 

6. In the case of a repair of piping, the in-ground test of the piping prior to backfilling the piping, and the final tightness test prior to placing the UST system back into service;

 

7. In the case of an UST removal, immediately before purging operations begin, immediately before the tank is cut open for any purpose, and the actual removal of the UST system from the ground;

 

8. In the case of abandonment in place of UST systems, immediately before purging operations begin, immediately before the opening of the tanks top, and at the completion of the actual filling of the tank with the inert solid material before the UST.