The Site is a portion of a mining era industrial complex on the shore of Torch Lake that processed ore through traditional stamping processes and tailing sands using leaching and floatation processes. The site produced steam and electricity in support of the surrounding industrial complex that operated for over a century producing millions of tons of copper until it ceased operations in 1968.
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Remaining structures at the Site incluided the formerpower plant that that was surrounded by foundations and remnants of other buildings on the property that once made up the Calumet and Hecla Stamp Mill Complex. Some evidence exists that residual process chemicals may be present at the site.
Assessment and characterization activities at the Site have determined that hazardous materials were presnet in the soil at the Site. In addition, degrading building materials and waste materials may be impacting groundwater at the Site.
During 2012 and 2013 the repondent at the Site has excavated and disposed of contaminated soil, raazed the former power plant building, and intiiated cleanup of the foundations of the former stamp mill.
The respondent will continue these operations beginning in Spring/Summer 2014 including the following:
-Power Plant Basement Dewatering and Characterization: Spring/Summer 2014
-Power Plant Basment Decontamination and Cleaning: Spring/Summer 2014
-Stamp Mill Foundation Cleaning: Spring/Summer 2014
-Excavation and Disposal of Asbestos Contaminated Soil: Spring/Summer 2014