Investigations

On April 5, 2012, Stewart Roth, a supervisor with Tierra Environmental Group, Inc. (Tierra), pled guilty in U.S. District Court, Hammond, Indiana, to one count of violating the Clean Water Act and aiding and abetting. 

Between January 2008 and June 2008, Mr. Roth directed and/or assisted at least one Tierra truck driver take waste to their Hammond location and dump it into their sump area, which was directly linked to the Hammond Sanitary Sewer System.  Mr. Roth knew that Tierra had no permit to discharge pollutants into the sewer system. 

This case was investigated by the Northern District of Indiana Environmental Crimes Task Force, including agents from the U.S. Environmental Protection Agency's Criminal Investigation Division, the U.S. Department of Transportation, Office of Inspector General, and the U.S. Coast Guard Criminal Investigative Service.  The case is being prosecuted by the U.S. Attorney's Office for the Northern District of Indiana and the Environmental Crimes Section of the Justice Department's Environment and Natural Resources Division.