A second worker injured in a 2022 explosion at a Marengo plant is suing the company, C6-Zero, and other defendants, including a politically-connected consulting firm that vouched for the company with state regulators.
The Iowa Department of Natural Resources has sued C6-Zero for $1.5 million the state paid toward environmental cleanup and equipment replacement after a Dec. 8 explosion and fire in Marengo.
The U.S. Environmental Protection Agency will oversee further cleanup at a Marengo explosion site after state officials struggled to enforce deadlines for removing contaminated water and soil.