Sulfide Mining

Rio Tinto Mining Update: Uranium and Landslide

Results from a follow up study were released recently and have confirmed that uranium detected in the water at the mine is not leaving the facility. The initial monitoring results indicated a high concentration of uranium in water samples from the bottom layer of the Temporary Development Rock Storage Area (TDRSA) at Eagle Mine in Northern Marquette County. […]

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U.S. Geological Survey to Monitor the Yellow Dog Plains

On April 18, the Keweenaw Bay Indian Community entered into a Cooperative Water Agreement with the U.S. Geological Survey to collect water quality data on the Yellow Dog Plains for four years from 2013 to 2016 and a report of their findings will be released in 2017. Work on this agreement has been commencing since early 2012.

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Uranium found in Water Samples at Eagle Mine

The Superior Watershed Partnership (SWP) found a high concentration of uranium in water samples from the bottom layer of the Temporary Development Rock Storage Area (TDRSA) at Eagle Mine in Northern Marquette County. The samples confirm the presence of uranium at 72.6ug/L, a level of uranium that exceeds the federal maximum concentration level for drinking

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Rio Tinto Eagle Mine highly criticized at Public Hearing for Air Quality Permit

The informational session and public hearing about Rio Tinto’s latest Permit to Install (PTI) application for proposed modifications to the Eagle Project brought attention to concerns about air quality, the environment and public health last night. Almost all of the attendees who spoke at the hearing were against the permit modifications.

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Air Pollution Comment Period and Public Hearing

The Michigan Department of Environmental Quality Air Quality Division is looking at a new Permit to Install (PTI) application from Rio Tinto for operations at Eagle Mine on the Yellow Dog Plains. Rio Tinto believes that due to the reconfiguring of their plant and the move of the original underground cement batch plant and associated

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