To clean accumulated material from a settling pond, mine operators can use draglines, excavators and haul trucks, but Jadair International says this process is tedious and costly, as excavating ...

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 ...

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

The old mine's complex system of tunnels drain into 11 settling ponds designed to trap heavy metals such as cadmium, lead, zinc, arsenic, silver and copper. The ponds, visible from Colorado 145 just ...

with an additional 10 acre state mining claim for 64 acres, all selling as one. Excavating equipment, a processing plant and supporting infrastructure including tailing and settling ponds are in place ...

At the mine, water is pumped from the pit and used in a material washing process before being routed through a series of settling ponds and eventually discharging into an unnamed tributary of ...

But Branam said even a coal ash pond that’s capped and lined can be at risk. “The biggest issue then is, are you going to breach the settling pond where they put this stuff and will it — as ...

The mine's receiver, PricewaterhouseCoopers ... "so they need to build a small settling pond right beside the water treatment ...

It prevents an uncontrolled release of water from the former mine. The treatment plant is behind the borough’s salt shed off Renton Road, with a settling pond stretching along Old Mine Road to ...

WHITEHORSE — The Yukon government says contaminated water from the Eagle Gold Mine, the site of a catastrophic ... is building a "settling pond" to deal with the copper-laced water and once ...

"so they need to build a small settling pond right beside the water treatment plant." Audit needed to expose systemic problems that led to Yukon mine's failure, chief says Streicker said this ...