CARGILL FEED & NUTRITION SIOUX CITY · SIOUX CITY, IAActiveIRVING F JENSEN CO PORTABLE CONCRETE PLANTS · SIOUX CITY, IAActiveKNIFE RIVER MIDWEST PLANT #4 · SIOUX CITY, IAActiveKNIFE RIVER PLANT #5 · SIOUX CITY, NEActiveMISSOURI VALLEY STEEL CO · SIOUX CITY, IAActiveSIOUX CITY FOUNDRY CO · SIOUX CITY, IAActiveSTANDARD READY MIX CONCRETE CO SIOUX CITY PLANT · SIOUX CITY, IAActive
Source: U.S. EPA Toxic Release Inventory. Registration does not by itself indicate a health hazard.