April 7, 2020
In late 2019, the U.S. Environmental Protection Agency (EPA) placed fencing at the former Humboldt Smelter property to limit public access. EPA continues to work with the owner of the former Iron King Mine property to upgrade and add fencing. We ask the public to follow warning signs and stay away from the mine and smelter properties.
In early 2020, EPA focused on the study of options to clean up the contamination, called a “Feasibility Study.” This study uses the information EPA collected in the remedial investigation, which was a comprehensive evaluation of sampling data and information about the nature and extent of contamination. The Feasibility Study will also use information about approaches to reuse the smelter plateau, collected during the May 2019 community brainstorming workshop.
EPA was planning a trip to Dewey-Humboldt. However, we continue to adjust to the evolving COVID-19 situation. EPA is taking necessary steps to ensure that decisions about ongoing cleanup activities at Superfund sites are made with the health and safety of communities, EPA staff, and contractors as the priority. As a result, we are postponing in-person public meeting events to reflect current COVID-19 guidance from federal, state, tribal and local officials.
In the meantime, we have updated EPA’s Iron King Mine/Humboldt Smelter site webpage. Please contact EPA with any questions using the contacts on our webpage.
December 24, 2019
In early December, the U.S. Environmental Protection Agency (EPA) took actions to control blowing dust from the grayish-colored waste dross on the former smelter property. EPA applied a product called Posi-Shell over the waste dross material. This forms a crust over the dross to prevent its entrainment by wind.
This past fall, EPA placed nine warning signs in areas on or near the former smelter property and former Iron King Mine property. These signs warn of chemical and physical hazards in these areas. In addition, EPA placed fencing at the former smelter property to limit public access. EPA continues to work with the owner of the former Iron King Mine property to upgrade and add fencing.