Oak Glen Nature Preserve

Tana Weingartner / WVXU

It was late evening on March 17 when neighbors reported smelling diesel near the Oak Glen Nature Preserve in Colerain Township. An underground pipeline run by a Sunoco subsidiary had ruptured and oil was oozing down a hillside creek, collecting in a pond and threatening to seep into the Great Miami River.

A month later, you can still see oil ringing trees like high-water marks.

Great Parks of Hamilton County spokeswoman Jennifer Sivak says, "you can still smell the oil."


Crews are preparing to clean up thousands of gallons of oil that began leaking Monday evening from a pipeline running through a Colerain Township nature preserve.

The Ohio Environmental Protection Agency estimates 7,000-10,000 gallons of oil spilled into the Oak Glen Nature Preserve. Sunoco subsidiary Mid-Valley Pipeline Co. estimates the spill amounts to about 240 barrels.

The EPA says the spill was reported shortly after 8 p.m. Monday. Great Parks of Hamilton County spokeswoman Jennifer Sivak says the park district was notified around 9 p.m.