A bitumen leak was reported at a Canadian Natural Resources oilsands operation in the weapons range part of the RCAF base in June 2013.
CFB Cold Lake, CNRL
Company officials said the leak - at what it calls its Primrose operation - was caused by faulty machinery at one of the wells, affected an area of approximately 13.5 hectares and released as much as 3,200 litres of bitumen each day.
CFB Cold Lake, CNRL
Preliminary tallies put the death toll from the leak at 16 birds, seven small mammals and 38 amphibians. Dozen were rescued and taken to an Edmonton centre for rehabilitation.
CFB Cold Lake
As of early August 2013, more than 1.1 million litres of bitumen had been pulled from marshlands, bushes and waterways.
CFB Cold Lake, CNRL
Although CNRL could not say when the leak may finally be stopped, it estimates it will likely cost more than $40 million to clean up.
Other recent spill in Alberta
Plains Midstream
Little Buffalo band member Melina Laboucan-Massimo scoops up July 13, 2012 what appears to oil from the pond shoreline near the site of a 4.5 million-litre Plains Midstream pipeline leak detected April 29, 2011. Photos taken at the site and released by Greenpeace of Alberta's second-worst pipeline spill suggest at least part of the site remains heavily contaminated despite company suggestions that the cleanup is complete.
Plains Midstream Canada
A boat passes by a boom stretching out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream Canada
Debris pushes up against a boom as it stretches out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012.
Plains Midstream Canada
A boom stretches out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream
A boom stretches out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream Canada
A photographer snaps a boom stretching out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream Canada
A boom stretches out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream Canada
A worker slows traffic while a boom stretches out to contain a pipeline leak on the Gleniffer reservoir near Innisfail, Alta., Tuesday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream Canada
A no swimming sign along the banks of the Gleniffer reservoir while a boom stretches out to contain a pipeline leak on the lake near Innisfail, Alta., Friday, June 12, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of sour crude near Sundre, Alberta, on June 7 and flowed downstream in the Red Deer river to the reservoir.
Plains Midstream Canada
Oil from a pipeline leak coats a pond near Sundre, Alta., Friday, June 8, 2012. Plains Midstream Canada says one of their non-functioning pipeline leaked between 1,000-3,000 barrels of oil.
Plains Midstream Canada
Oil from a pipeline leak coats a pond near Sundre, Alta., Friday, June 8, 2012. Plains Midstream Canada says one of their non-functioning pipeline leaked between 1,000-3,000 barrels of oil.
Plains Midstream Canada
Oil from a pipeline leak coats a pond near Sundre, Alta., Friday, June 8, 2012. Plains Midstream Canada says one of their non-functioning pipeline leaked between 1,000-3,000 barrels of oil.
Plains Midstream Canada
Tracks pass through oil on the banks of the Gleniffer reservoir after a pipeline leak near Sundre, Alta., on Friday, June 8, 2012. Plains Midstream Canada says one of their non-functioning pipelines leaked between 1,000-3,000 barrels of oil.
Enbrige's Athabasca pipeline
Approximately 1,450 barrels of oil spilled from a pumping station along Enbridge’s Athabasca pipeline in June 2012.
The spill occurred approximately 24 kilometres from Elk Point, Alta., a village located 200 kilometres northeast of Edmonton.
Lake Wabamun
Wreckage from the August 3rd train derailment and subsequent oil spill is seen lining
the shore of Lake Wabamun on Monday, August 8, 2005, as clean-up continues.
Lake Wabamun
Wreckage and black oil from the August 3rd train derailment and subsequent oil spill are seen lining
the shore and waters of Lake Wabamun on Monday, August 8, 2005, as clean-up continues.
Lake Wabamun
White absorbent boom is seen lining the shores of Lake Wabamun, Alberta, as the clean-up effort
from the August 3rd train derailment and subsequent oil spill continues on Monday, August 8, 2005.
Lake Wabamun
Wreckage and black oil from the August 3rd train derailment and subsequent oil spill are seen lining
the shore and waters of Lake Wabamun on Monday, August 8, 2005, as clean-up continues.
Lake Wabamun
Wreckage and black oil from the August 3rd train derailment and subsequent oil spill are seen lining the shore and waters of Lake Wabamun on Monday, August 8, 2005, as clean-up continues. Lake Wabamun was severely polluted when a train carrying heavy oil derailed on August 3, 2005, spilling much of it's load into the lake.
Lake Wabamun
Rail cars leak bunker fuel oil, meters from summer homes bordering Lake Wabamun, after a freight train derailed, in this August 3, 2005 file photo, near the town of Wabamun, Alta. Canadian National Railway faces an environmental charge stemming from the train derailment and oil spill at a popular Alberta lake last summer.
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