DENVER — Colorado health officials said contamination near a closed mine in Jefferson County is approaching emergency conditions after groundwater was found to contain extremely high levels of uranium — 1,000 times higher than the maximum contaminant level, according to kwgn.com.
The uranium contamination was in close proximity to Ralston Creek, which flows into Denver Water’s Ralston Reservoir. The reservoir provides water to the cities of Denver and Arvada, the article stated.
State officials have ordered the owner of the mine, Cotter Corp., to submit a plan to deal with the contamination, according to the story.
Cotter Vice President John Hamrick said the company is looking into several methods to clean up the contamination, including the creation of a wetland, the story reported.
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