This will be a "tricky" one to clean up, says the EPA, it what usually tends to be an understatement.
The Cincinnati Enquirer reports that on Monday, about 10,000 gallons of crude oil from an underground pipeline spilled into a stream and marshy pond in Ohio's Oak Glen Nature Preserve, about 20 miles north of Cincinnati. The leak was discovered not by the company but by a driver who smelled oil and pulled over to find the source. The paper checked federal records for the pipeline's most recent inspection: 2011.
Cleanup crews were preparing to vacuum the wetlands; Reuters reports Sunoco was "not immediately available for comment."