What does a UST abandonment consist of?
The UST is uncovered, rendered free of ignitable vapors, cut open and cleaned of all product and product residue. The tank is then entered by a technician and visually inspects the tank for breaches. Soil may also be extracted from the perimeter of the UST by means of drilling through the UST and extracting soil samples or by “geoprobing” around the UST from the surface. If any contaminated soil is detected or breaches in the tank are observed, the tank must be removed from the ground and the site remediated. If no problems are observed with the UST, the tank may be filled with sand or concrete slurry, depending on local municipality regulations.
