CASPER, (AP) - The U.S. Environmental Protection Agency is expressing concern about potential contamination of aquifers from three proposed in-situ uranium mines in Wyoming. The EPA has told the Nuclear Regulatory Commission to go back revisit its environmental reviews of the proposed mines.
The in-situ method of mining uranium involves flushing a
solution through a formation to dissolve the underground uranium, which is then pumped to the surface. Carol Rushin, of the EPA's Region 8 office, notes that the three proposed Wyoming mines would not inject wastewater deep enough to avoid underground drinking water formations. Industry officials say there are other treatment options for wastewater disposal but injection is the most economic.