On October 26, 2011, EPA issued a Construction Approval under the National Emission Standards for Hazardous Air Pollutants (NESHAPs) to Energy Fuels Resources Corp. for their proposed Piñon Ridge Uranium Mill in Montrose County, CO. EPA’s Approval allows for construction of the Piñon Ridge tailings impoundment Tailing Cell A, which will not exceed 40 acres in area, and no more than 40 acres of evaporation ponds.
All relevant documents are available below.
- Approval (PDF) (5 pp, 1 MB)
- Background Document (PDF) (5 pp, 64 K)
- Response to Comments (PDF) (10 pp, 82 K)