News release: Sierra County mine agrees with U.S. EPA to install wastewater treatment, protecting local waterways
Today, the U.S. Environmental Protection Agency (EPA) announced that Sixteen to One Mine, one of California’s oldest operational gold mines, has agreed to an Administrative Order on Consent requiring the mine to install a new treatment system that will remove pollutants from mine drainage before entering local waters. The mine was found to be in violation of its permit under the U.S. Clean Water Act after consistently discharging mine-influenced water that exceeded limits on pollutants.