Due to the heavy clay content of soil in Darien, leaking tanks are fairly common. The fire marshal’s office suggests you consider replacing your tank if it is more than 15 years old. If it is a 275-gallon tank, no matter how old it is you should remove it because they were never approved for in-ground use.

If oil leaks from your tank, it will likely enter wells, brooks, streams, and/or building foundations and you will have a big environmental mess that can wind up being very costly.

To replace your home tank, you will need a permit and inspection from the building department. New tanks can be installed indoors or above ground. New installations will not be approved until the old tank is removed or properly abandoned and accepted by the fire marshal. You will need a permit from his office to do this.