MUNCIE, Ind. (AP) _ Three Delaware County residents are being sued by the state over a 2012 fish kill whose cause had eluded state investigators.
 
Indiana's lawsuit against David, Mary and Adam Howell seeks more than $2,000 in damages plus investigative costs for the June 2012 fish kill.

More than 5,800 fish died downstream of two drainage tiles that empty into Bell Creek from Delaware County fields the Howells farm. The lawsuit states Adam Howell told investigators about weed killers and other chemicals that had been applied to those fields.
 
The Star Press reports that the Indiana Department of Environmental Management did not detect any chemicals in the water.
 
Adam Howell denies responsibility and says his family will fight the lawsuit, which was filed on behalf of the Indiana Department of Natural Resources.