Do you still have some questions about tank removal? Read on for six more frequently asked questions and their answers.
1. Why do underground tanks corrode so easily?
Most underground tanks, whether they have been storing heating oil or petroleum, are made from iron-based metals. These materials will always attempt to return to a stable form – what we see as rust. The speed at which a steel tank will rust is dependent on a number of factors, including the pH level of the soil, the location of the tank, any damage to the tank and the levels of moisture in the soil. Corrosion will always be occurring, but the speed at which something corrodes can’t always be predicted. A steel tank will rarely survive more than 20 years underground but can erode much quicker.
2. How is a tank tested?
A tank removal company will test a newly discovered tank to check for which substance it was (or still is) holding. This will be done by boring holes into the soil and checking the soil around the tank. This is based on the assumption that some oil or petroleum will have leaked.
3. What happens if a leak is discovered?
If a leak is discovered, the company you hire to remove the tank will still be able to do so and will also perform a clean-up of the area. They will remove and dispose of any contaminated soil for you.
4. How do I find the right removal service?
A reputable tank decommissioning service should have plenty of experience in this field. Professionals such as http://www.ashremediation.co.uk/tank-decommissioning/ will be able to advise you at every stage of the testing and decommissioning.
5. How long will it take to remove the tank?
A residential oil tank can be removed in a matter of one or two days, but a bigger commercial petrol tank may take considerably longer. Your tank removal company will be able to give you a good idea of how long the job will take.
6. I have converted the fuel in my home from oil to gas: should I remove my oil tank?
Ideally, yes. The tank will need to be decommissioned either way and will be either removed from the site or filled with inert foam.