EPA toxicologist Deborah McKean says the sludge laced with heavy metals moved so quickly after the spill that it would not have harmed animals that consumed it.
- Environmental authorities are scrambling to assess damage from the leak, caused when a plug blew at the Gold King Mine near Silverton.Read more
- If successful, the deal will bring Greenwood Village-based Newmont its first Colorado gold mine since it closed a mine near Telluride in 1978.Read more
State attorneys will file a notice of intent to sue over the bird's threatened status, the governor's office confirmed.
The decision may impact oil and natural gas development in the habitats of the birds.
Industry officials say restrictions will cost jobs.