Underground Storage Tank Removal and Disposal Contractor

Danosh Construction is an experienced and professional Underground Storage Tank removal contractor, offering services for the decommissioning and removal of decommissioned and/or abandoned underground oil tanks. We carry full liability insurance and are licensed with the Technical Standards and Safety Authority (TSSA), and the Ontario Ministry of the Environment, Conservation and Parks. We also possess all the required equipment to complete the removal of a UST of any size, in any location!

What is an Underground Storage Tank?

An underground storage tank (UST) is a tank buried underneath the ground, ranging in size, and used to hold a variety of substances like fuel and oil. They are commonly used to heat homes, run backup generators, or as a reserve tank. Other commonly used names are Underground Oil Tank, Underground Fuel Storage Tank (UFST), or Abandoned Underground Storage Tank.

Why should you get your Underground Storage Tank Removed?

There are numerous reasons why you may want to remove an underground storage tank. If you have a buried oil tank that has been lying dormant or is no longer in use, regulating bodies require its removal. Over time these oil tanks may pose a hazard to your health, cause bad smells, or leak and contaminate the surrounding soil. This can have enormous environmental impacts as just small amounts of oil or gasoline leakage can affect the soil around your property, your drinking water, and can cause a buildup of explosive vapors underneath the ground. Underground storage tanks generally have a life expectancy of 20-25 years, therefore if your tank is older than that, it may be time to get it removed.

Common reasons to remove your Underground Storage Tank

  • You are building a new house

  • Your house is for sale

  • You are doing a renovation

  • Your UST has leaked and you have contaminated soil

  • Your tank has been unused for a number of years

  • You have found one by accident

How to tell if you have a Underground Storage Tank

A simple way to locate a buried fuel storage tank is to look for 2 pipes outside your home: a fill pipe, and vent pipe. It is common that these pipes go through the outside wall of your home, but often they just lead straight down into the ground. If you find 2 copper pipes leading into your basement, this is a great indication that a tank is present. Additionally, you could check for depressions in your yard that may determine if an underground tank is still there. If you think you may have an buried tank, there are 2 main courses of action to take. The first is by use of Ground Penetrating Radar (GPR). GPR is a geophysical method that uses radar pulses to image the subsurface, a nondestructive method to map out any abnormalities present in the ground that may confirm the presence of a buried tank. The second course of action is a physical investigation, and usually implemented when fill and/or vent pipes are present.  An excavation along the present pipes to determine what, if anything, is still present in the ground.

The following diagram shows a typical underground oil tank;

Underground Storage Tank Removal Process

The removal and disposal of Underground Storage Tanks is a complicated process that must be completed by a licensed company. Our general procedure for removing UST’s includes:


Arrange and harmonize all equipment needed to do the removal, such as Vac Trucks, excavators, permits, locates, and more.


Pump product out of the tank, and clean out all remaining residue.


Excavate around the tank to expose it and additional piping. Then lift it out.


Carefully check for leaks the tank may have.


Remove any contaminated soil from clean soil, and dispose of it safely.


Conduct verification soil sampling to confirm all contamination has been removed


Back fill and compact hole back to grade using clean fill.


Clean up site - as if we were never there


Dispose of the tank, piping, residues, soil and any remaining oil at proper locations.


Prepare a report and photographs showing the exhumation of the UST.


Provide a report letter to the TSSA for their review and inspection services.




Head Office:

19386 McCowan Road,

Mount Albert, Ontario

L0G 1M0

Yard Location:

21875 Lake Ridge Road,

Pefferlaw, Ontario
L0E 1N0


Phone: (905)-473-6883

Fax: (905)-473-2168

Email: info@danoshconstruction.com

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