Cleanup is underway at Layer Park in Miami Township, after lead was discovered in the soil last year. The effort is expected to cost 3 million dollars.
Miami Township closed the neighborhood park, which is located in a former a shooting range, in late 2015. Some parts of the park and a nearby residential yard tested for 60 times the safe level of lead.
U.S. EPA On-Scene Coordinator Steve Wolfe says clean-up was delayed by weather, but started last month.
"We have done about a quarter of the excavation, said Wolfe. "And we expect to start shipping off some of the contaminated soil next week."
Wolfe says dust created by excavation is being controlled by watering down the soil.
The U.S. EPA became involved in the clean-up in April of 2016, after the Ohio EPA requested assistance. Wolfe says the effort should take about four months.