Only two oilsands operations set to meet rules to deal with liquid tailingsVolume of toxic tailings will increase to 1.1 trillion litres according to industry plans

Dec. 1, 2009

Calgary, Alberta — A comprehensive review of regulatory documents filed with the Alberta government suggests most oilsands mining operations will not comply with a new provincial law designed to limit increases in tailings, the toxic liquid waste produced by oilsands mining operations.

“Two mines have proposed plans to start cleaning up the legacy of toxic tailings on the landscape,” said Simon Dyer of the Pembina Institute. “It is troubling that other companies are not willing to make the same effort and have submitted plans that appear not to meet the directive rules.”

The review conducted by the Pembina Institute and Water Matters found that only two oilsands operations reported they would meet the rules to reduce toxic tailings between 2011 and 2013 (the start date for binding rules to capture and start solidifying liquid tailings). The seven remaining operations submitted plans that will not comply with rules for reducing their production of liquid tailings by the first target date in 2011. Some companies submitted plans suggesting they may not meet the rules for tailings management for over 40 years.

Oilsands companies were required to submit tailings management plans by September 30, 2009, in accordance with the newly released Alberta Energy and Resources Conservation Board (ERCB) Directive 074: Tailings Performance Criteria and Requirements for Oilsands Mining Schemes. The ERCB released the directive because of concerns that oilsands companies were not adequately addressing the clean up of tailings waste.

“It is essential that the ERCB rigorously enforce Directive 074 to achieve the kind of environmental performance expected by Albertans, and promised by the ERCB,” said Dyer.

As a result of the non-compliant plans submitted by oilsands companies, the cumulative amount of liquid tailings being stored on the landscape north of Fort McMurray is set to increase by about 30 per cent between 2010 and 2020. It will reach a staggering 1.1 billion cubic metres of liquid tailings over the decade. During the same period, the area of the structures containing these liquid tailings are projected to nearly double to 250 square kilometres from the current area of 130 square kilometres.

“We are confident that the ERCB will reject those plans that are not compliant with the requirements of the directive and will use the full range of enforcement tools to ensure this important step in tailings management is upheld,” said Joe Obad of Water Matters. “Enforcement tools available to the ERCB include halting oilsands expansions and suspending operations at oilsands mines until compliance is achieved.”


For more information contact:

Simon Dyer
Pembina Institute
Tel: 403-322-3937

Joe Obad
Water Matters
Tel: 403-585-5826

The backgrounder and Pembina Institute/Water Matters assessment report are available for download from

Copies of oilsands company submissions and background information on Directive 074 are available from the ERCB website.


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