A retired professor claims he has evidence of plutonium particles contaminating the refuge. Government lawyers counter that the EPA has since determined the area was safe.
The town of Superior asked a federal judge to keep the U.S. Fish and Wildlife Service from opening Rocky Flats National Wildlife Refuge
A U.S. official harshly criticized a Colorado health officer who questioned the safety of a former nuclear weapons plant that was converted into a wildlife refuge.
The area, set to open to the public this summer, is one of the few nature spaces within 30 miles of Denver.
Five environmental groups are seeking a court injunction to halt construction of hiking and biking trails at the Rocky Flats Wildlife Refuge.
After decades of cleanup, parts of a site that housed a former plant for plutonium triggers is scheduled to open to the public in 2018.
The nuclear weapons plant closed in the early ‘90s. Residents who lived near the plant have raised long-standing questions and concerns about high rates of illness.
- Fifteen thousand property owners near Arvada and Westminster had sued the operators of the nuclear weapons plant in 1990.Read more
The half-life of plutonium is 24,100 years. It's considered "gone" after 10 half-lives -- 240,000 years.