What does Oregon law require an owner to do with an underground heating oil tank in the yard?
If the tank is no longer in use, the contents of the tank must be pumped out. Oregon law does not require property owners to decommission or test residential tanks for leaks. If the tank has leaked, or is suspected to be leaking, the Oregon Department of Environmental Quality (DEQ) must be notified. DEQ will require the property owner to have a cleanup performed. If you are selling your home, Oregon law requires you to disclose the presence of an underground oil tank to the buyer.