Hardrock

Michael Guesman, an employee of Hardrock Excavating LLC, admitted Thursday that he dumped oilfield waste into a storm drain that empties into the Mahoning River near Youngstown, OH, a violation of the Clean Water Act (CWA) that prompted the Ohio Department of Natural Resources (ODNR) to permanently revoke the operating permits for Hardrock and a second company also alleged to have violated the CWA.