The Atlantic States Cast Iron Pipe Company pumped contaminated wastewater into the Delaware River. John Prisque (plant manager), Jeffrey Maury (maintenance superintendent), and Craig Davidson (finishing superintendent) knew of this, actually ordering that the wastewater be handled in such fashion. Prisque also ordered workers to burn drums of waste paint in the plants furnace at night, causing chemical air pollution. Prisque, Maury, and Davidson were charged with criminal violations of the Clean Water Act, and the company and Prisque were charged with criminal violations of the Clean Air Act. Individual defendants were charged with lying to investigators. The U.S. district court convicted the defendants. The court sentenced Prisque to 70 months imprisonment, Maury to 30 months imprisonment, and Davison to 6 months imprisonment. The defendants appealed. Question: Are the defendants guilty of violating environmental protection statutes?