April 22 - An Environmental Protection Agency emergency-response team on Monday will begin repairs on tailings ponds at the abandoned Rico Argentine Mine to prevent heavy-metal sludge from flowing ...

Imperial employees first reported in May that seepage was escaping from a tailings pond and making its way to the surface. The company confirmed the seepage was tailings wastewater that made its ...

A new report (PDF) released by Environmental Defense, using industry figures, estimates that tailings ponds created by oil sands projects may be leaking 2,750,000 gallons of contaminated water ...

OSPW is stored in large tailings ponds and not permitted to be discharged to surface waters. Cost effective solutions for reclaiming OSPW are being explored but have not been realized to date. Among ...