Sentences with phrase «from tailings ponds»

Not exact matches

A Pembina Institute study from 2009 estimated the costs to reclaim what was then 686 square miles of oil sands developments and 170 square miles of tailings ponds would run as high as $ 15 billion.

VANCOUVER — The report from an expert panel of engineers confirms that the Mount Polley tailings pond failure was avoidable, but leaves British Columbians with more questions than answers, said New Democrat leader John Horgan.

According to a report from the ERCB released in June not only are the tailings ponds not disappearing they are actually growing in size.

It has been used extensively to help mining companies figure out how sediment from tailings will fill up their storage ponds.

It must heat several barrels of water to strip the bitumen from the sand and upgrade it, and afterward it discharges contaminated water into tailings ponds like the one near Mildred Lake.

Sources of air contaminant emissions from oil sands developments include industrial smokestacks, tailings ponds, transportation, and dust from mining operations.

From toxic tailings ponds that already cover 130 square kilometres, to fresh water use and the direct impacts of digging 100 metre open pit mines over thousands of square kilometres of boreal forest, the report details the environmental problems and other challenges that oil sands mining poses to northern Alberta.

11 Million Litres: the Tar Sands» Leaking Legacy CBC News — Millions of litres leak each day from oilsands tailings ponds: report by Environmental Defence