A McWane-owned company and four of its managers have been convicted in New Jersey on criminal counts ranging from polluting the Delaware River to intimidating workers and covering up details of a workplace fatality.

A federal jury found Phillipsburg, N.J.-based Atlantic States Cast Iron Pipe Co. guilty on 32 of 34 counts, including conspiracy, according to the U.S. Justice Department. The company was acquitted on one count of lying to regulators. Jurors couldn't agree over one count facing the company. Four of five current or former managers on trial also were convicted of at least one count.