Occasionally tanks have been neglected for so long that they are beyond repair and must be decommisioned due to environmental concerns.
Tank Decommissioning
Underground petroleum storage systems (UPSS) or underground storage tanks (USTs) must be managed appropriately to minimize hazards and risks. Unused UPSS or USTs are rarely completely emptied and as tanks deteriorate they may begin to leak causing environmental damage. As outlined by the EPA, once a UPSS or UST leaks the (owner, site operator or equipment owner) of said tank is responsible for all clean-up of contaminated soils and groundwater.
Unused UPSS or USTs need to be removed wherever practicable (when removal of a tank will not affect surrounding tanks or structures) otherwise emptied and decommissioned.
When removing a tank the steps are as follows:
Remove Tank Residue
Left over product and fumes are removed from the tank, the tank is cleaned (using our custom UPSS cleaning equipment) and made ready for transport
Excavate tank
First any obstructions or concrete above tank is removed for access to the tank (This can be repaired/replaced later) and then excavate surrounding soil/sand
Remove tank from site
Once the tank is excavated the tank is removed from site and taken to a recycling plant
Manage contaminated soil
Any sand/soil in the area of the tank must be inspected for contamination to insure that all contamination is removed from the site. The soil/sand is then taken to an approved waste management site.