What is a bunded oil 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. These tanks essentially consist of a tank within a tank – whilst their inner tank acts primarily to hold fuel, their secondary shell allows for the safe collection of any oil released as a result of a leak. The inclusion of a secondary containment tank (seen in all bunded oil tank designs) allows for the containment of any leaks, helping property owners comply with regulation, and avoid environmental damage. In addition to this, the secure design of bunded oil tanks are thought to help prevent fuel theft, and reduce wear and tear through weather and exposure.

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.