What is the definition of an underground storage tank (UST)?
A UST is any combination of tanks including any underground pipes that is used to contain an accumulation of regulated substances and the volume of which (including the underground pipes) is 10 percent or more beneath the surface of the ground. 10. What is the deadline for me to register my tanks with DDOE? Tank owners will receive a registration invoice annually in October requiring them to renew their tank registration for the upcoming year by November 30th of each year. Failure to do so by January 1st of each year will result in fines and penalties. In addition, the facility will be placed on our delivery prohibition list until the registration has been renewed. New tank systems will receive an invoice within 30 days after completion of installation and submittal of the Notification form. This registration shall be effective for the remainder of the current calendar year. Thereafter, they will receive their tank registration invoice along with all other existing tank owners in Octob
Means any one or combination of tanks, including appurtenant pipes, lines, fixtures, and other related equipment, used to contain an accumulation of hazardous substances, hazardous wastes or pollutants, the volume of which, including the volume of the appurtenant pipes, lines, fixtures and other related equipment, is 10 percent or more beneath the surface of the ground.
