Superfund Site Profile
The Argonaut Mine Site (site) is an historic hard rock gold mine that operated from the 1850s to 1942. The Argonaut Mining Company processed ore and disposed of tailings in a portion of the northwest side of present-day Jackson, CA. As a result of years of mining operations, portions of the site's soil contains high levels of arsenic, lead and mercury. EPA has been working at the site since 2013 to sample, understand, and address the contamination.