What is a bunded fuel tank?

Bunded oil tanks are a commonly used, and highly recommended form of oil storage, offering a higher level of protection against leakage than ‘single skin’ tanks through their ‘second skin’ design. Bunded tanks, whether steel or plastic, generally consist of an inner tank (used to store the fuel) and an outer tank (which acts as a protective seal in the event of spillage). The design of bunded fuel tanks prevents fuel loss and extensive environmental damage in the event of a spillage.

In addition to this, bunded tanks are thought to add an extra layer of security against thieves using a ‘drilling’ method to siphon oil, and be further resistant to the elements. The above is especially true in the case of steel fuel storage tanks, which are particularly durable.

Bunded tanks are a legal requirement at all commercial and industrial premises storing oil in the UK and Channel Islands, but are commonly used domestically.