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There are over 7,000 registered underground petroleum and hazardous substance storage tanks located at approximately 2,700 facilities in the State of Iowa. The Iowa Department of Natural Resources Underground Storage Tank (UST) program is responsible for protecting public health and the environment, in particular groundwater, by preventing petroleum and hazardous substance discharges to the greatest extent possible. The staff provides technical expertise, training, and outreach to underground storage facility owners and operators.
Underground storage tanks and piping constructed with steel or other metal in direct contact with the soil must be protected from corrosion with a cathodic protection system.
Ethanol information regarding converting an existing UST system to E-blend fuel (greater than 10 percent ethanol by volume)
The following questions are answered in the Underground Storage Tanks Frequency Asked Questions.
Leaking Underground Storage Tank Forum - The forum was held on February 29, 2012 to discuss topics relative to addressing leaking underground storage tank (LUST) sites.
Reporting Releases - Iowa law requires owners and operators of Underground Storage Tank (UST) systems to report a confirmed or suspected release of "regulated substances," which includes petroleum, to the Department of Natural Resources (DNR) within 24 hours or within 6 hours if a hazardous condition exists [567 Iowa Administrative Code (IAC)—135.6 & Iowa Code section 455B.386]
Chemical Fact Sheets