May 24, 2010 1:04 PM by Bea Karnes, News First 5
State regulators have rejected a plan by Cotter Corp. to clean up contamination from a closed uranium mine that has flowed into a creek that feeds a Denver-area reservoir.
The Colorado Division of Reclamation Mining and Safety said Thursday that it doesn't believe the plan would prevent uranium from contaminating Ralston Reservoir, which supplies some of the Denver area's drinking water. The agency has directed Cotter to resume treating the water and submit a new plan within two weeks.
The contamination is coming from the Schwartzwalder mine, closed since 2000. High concentrations of uranium have been found in Ralston Creek. Water managers say drinking water in the reservoir is still safe.