Underground gasoline tank leak in Burlington discovered by DNR
DES MOINES – A small leak from an underground gasoline storage tank in Burlington over several months has resulted in a release of an estimated 5,000 gallons from Mac’s Convenience Stores, LLC (Circle K) at 1012 Maple Street in Burlington.
Mac’s reported the leak to the DNR July 20, although previous monthly leak detection records had indicated a suspected release beginning in January. The environmental contractor, American Environmental, constructed an interceptor trench with absorbent booms to stop the flow of gasoline that was found 500 feet from the site.
The DNR directed Mac’s to immediately remove the remaining gasoline in the leaking tank as soon as the leak was reported. Technicians from Tank Tech, Inc. out of Blodgett, Missouri, are expected to enter the 10,000 gallon tank August 12 to find the leak and determine whether the tank can be repaired or relined.
American Environmental will install wells to identify the extent of the contamination and continue recovery of the leaked gasoline. The DNR is assessing the impact of the leak on the environment and public health and safety.
The leaky tank is one of five tanks at Mac’s. The station continues to operate. Mac’s will be referred to the DNR legal department for not reporting a suspected release in a timely manner.