The decision essentially halts IMC's future mining plans on the property ... But I cannot for the life of me see how moving a clay settling pond has a regional impact," he said.

An existing settling pond constructed by Atlanta Gold Corp. of Toronto-based Twin Mining is not leaking and has been removing some of the arsenic in runoff water flowing from an old mine opening ...

Jadair International claims that its technology has the potential to make settling ponds obsolete by effectively and economically providing a continuous supply of clarified water, as well as thick ...

A federal judge ruled Wednesday that using settling ponds to remove sediment from streams ... industry about the future of mountaintop removal mining in Appalachia. While decried by ...

The board found the mining operation violated the Colorado ... system to augment the historic water treatment provided by settling ponds. The reclamation board agreed to lift the cease-and-desist ...

Strip mining for phosphate rock violently transforms the environment ... Beneficiation creates clay-settling “ponds,” further destroying habitat, from which it can take decades to remove water and ...