The recent move by Prime Minister Mark Carney to expedite a new oil export pipeline to the West Coast has heightened the need for Ottawa to make a definitive decision regarding a long-standing environmental concern surrounding the oilsands in Northern Alberta – the management of tailings ponds.
Oil production in the region is poised for expansion, with the Alberta government aiming to double crude production. However, since the inception of the first oilsands mine approximately six decades ago, the industry has been prohibited from discharging any water. Consequently, extensive tailings ponds in the area are brimming with decades of industrial mining wastewater, which is toxic and poses a threat to wildlife. Residents in the vicinity are apprehensive about the adverse health effects and environmental repercussions.
To deter birds and wildlife from the water, air cannons operate incessantly along the perimeter of the tailings ponds, complemented by numerous makeshift scarecrows. The scale of the issue is staggering, equivalent to about 600,000 Olympic-sized swimming pools or covering an area comparable to the Island of Montreal submerged under three meters of water.
The volume of tailings fluid has surged by 50% over a decade from 2014 to 2024, as reported by the Alberta Energy Regulator. With the ponds reaching capacity, the industry is pressing for regulatory frameworks that would facilitate treating and eventually releasing the fluid. Simultaneously, some Indigenous leaders advocate for a slowdown in oilsands production until a viable resolution is attained.
Grant Hunter, Alberta’s Environment Minister, emphasized that the solution does not involve maintaining the status quo but rather validating the scientific methods to ensure proper treatment and release of the wastewater. The industry asserts its capability to treat tailings water effectively if provided with clear water quality standards. The ultimate goal is to transform the existing tailings ponds into reclaimed sites.
The proposal from Alberta aims to specify the requisite water quality standards for release by the year-end. However, since waterways fall under federal jurisdiction, Ottawa holds the authority to either adopt, amend, or retain the proposed regulations. Companies affirm their readiness to implement advanced technologies to address tailings water but stress the necessity for regulatory clarity to achieve effective remediation.
In the push for treat-and-release, concerns have been raised by Indigenous leaders and communities along the Athabasca River, where the treated water would be discharged. Opposition stems from apprehensions related to historical trauma linked to water contamination and its implications on health and the environment. As debates intensify, calls for exploring alternative methods to treat-and-release gain traction.
The industry has invested significant efforts in developing and testing diverse technologies for treating wastewater and supporting water monitoring programs. While the industry demonstrates confidence in the effectiveness of treatment technologies, Ottawa remains guarded about its forthcoming actions. Federal ministers have refrained from committing to specific timelines for regulating tailings ponds, underscoring the complexity and sensitivity of the issue.