MADISON -- An above-ground oil storage tank located at approximately 5418 S. Madison Street at state Route 528 leakedand sprayed approximately 1,250 gallons of crude oil, according to the Ohio EPA.

The spill traveled about 150 feet across the soil and entered a small tributary to the Grand River. It then migrated several thousand feet downstream and entered a 1-2-acre pond.

Approximately 800 gallons of oil made it to the pond and is contained.

Inland Waters will carry out the cleanup, which will likely last through the weekend. There has been no evidence of fish or wildlife impacts.

The EPA does not believe any oil made it to the Grand River. The storage tank and a few small oil/gas wells nearby are owned by Wellworker LLC in Madison.

The company is cooperating in the cleanup.

Ohio EPA was first notified of the spill by the Madison Township fire department at around 11 p.m. Thursday evening.

Through the course of Friday, the EPA had staffers at the scene. During that time, soil was being scrapped and removed from the release area. It was being containerized for proper disposal.

The tributary is 1-2' wide in some areas and up to 5-6' wide in others.

The Madison Township fire department wrapped up their involvement. An ODNR representative was on the scene onFriday.