Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. Underground Storage Tanks "About 705,000 underground storage tank systems (USTs) nationwide store petroleum or hazardous substances that can harm the environment and human health if the USTs release their stored contents." This U.S. Environmental Protection Agency (EPA) site provides an overview of USTs, related statutes and regulations, and details of the EPA's UST programs. Browse UST site information by state. The site is also searchable and browsable by subject. http://www.epa.gov/swerust1/ Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *