The cleanup of an oil sheen that appeared Thursday on the Cady Marsh Ditch is expected to be complete by midweek, according to a representative for the U.S. Environmental Protection Agency.
"We've actually done quite a bit of work over the weekend," Jacob Hassan, on-scene coordinator for the U.S. EPA said Monday morning. "We hope to have it all cleaned up by Wednesday."
Federal, state and local officials were called to the 7-mile drainage ditch through Calumet Township, Griffith, Highland and Munster on Thursday afternoon after the oil sheen was reported to the U.S. EPA that morning.
Cady Marsh is a county-regulated stormwater drain that runs from Grant Street in Gary to Hart Ditch in Munster.
Hassan and Lake County Surveyor George Van Til said Friday the amount of oil released into the waterway was minimal and contained quickly with booms placed in the ditch.
Hassan said the source of the oil has been identified but officials are not yet releasing information about the responsible party as the investigation into the Clean Water Act violation continues.
"It appears to have been caused by heavy rains and improper storage of materials," Hassan said.