Billion litres of coal-mine muck leaks into Athabasca River
By Gordon Kent, Edmonton Journal November 4, 2013
EDMONTON – Geotechnical engineers remained at the Obed Mountain coal mine Sunday trying to determine how one billion litres of murky water leaked from a containment pond into the Athabasca River.
A barrier gave way on Halloween, allowing liquid containing coal dust, sand and dirt to flow through two creeks into the Athabasca, said Darin Barter, a spokesman for the Alberta Energy Regulator.
“I haven’t seen this happen. Coal mine incidents and pit leak incidents are really rare,” he said. “I was surprised this could happen.”