Opponents of a proposed uranium mine in western South Dakota want more information released to ensure local aquifers are protected.
The Clean Water Alliance says a detailed geological survey could show threats to local aquifers if the project is approved.
Powertech Uranium Corp. President Dick Clement says the information is "insignificant" in terms of how the uranium process at the proposed Dewey-Burdock uranium mine would actually work.
The company plans to use a method that would pump groundwater into the underground ore deposits to dissolve the uranium. The water would be pumped back out, where the uranium would be extracted.
Mining opponents say the mine could pollute or drain the region's aquifers.