ADVERTISEMENT

Edmonton

Imperial, Alberta regulator knew for years about tailings seepage at mine: documents

Published

Tailings samples are being tested during a tour of Imperial's oil sands research centre in Calgary on Tuesday, Aug. 28, 2018.THE CANADIAN PRESS/Jeff McIntosh
Tailings samples are being tested during a tour of Imperial's oil sands research centre in Calgary on Tuesday, Aug. 28, 2018.THE CANADIAN PRESS/Jeff McIntosh