A local innovation is helping to dredge sediment more efficiently from water cleaning reactors, contributing to the treatment ...

It was the summer of 2015 when the Animas River in southern Colorado turned such a garish orange-gold that it made national ...

The abandoned mine had been plugged by an earthen and rock dam known as a bulkhead, behind which orange, highly acidic drainage water accumulated. But after a federal Environmental Protection Agency ...

Acid mine drainage continues to be an environmental hazard. Hence, Justice Katakey called on the state government to ...