MINE CLOSURE
The last phase of the mineral development cycle where the mine is converted to a closed state.
What is mine closure?
To return the land to its pre-mining state as closely as possible.
What is the primary goal of a mine closure and reclamation plan?
What happens during the shut-down phase of mine closure?
Employees are laid off, and equipment is permanently shut down.
What potential environmental issue can arise from mine closure?
Acid rock drainage or metal leaching.
How can Aboriginal communities participate in mine closure?
By planning in advance, communicating with stakeholders, and providing input.
Name one reason why mines eventually close.
Running out of the ore resource or low commodity prices.
Which stakeholders must be consulted during the development of a reclamation plan?
Communities, governments, and the public.
What is decommissioning in the context of mine closure?
The process of dismantling mining and processing facilities and equipment.
How can mining companies minimize negative environmental impacts?
By developing cost-effective, long-term closure strategies.
What kind of jobs can Aboriginal peoples hold during mine closure?
Trades personnel, equipment operators, inspectors, and security personnel.
How long can the mine closure process typically take?
It may take 2 to 10 years, depending on various factors.
What should a reclamation plan include regarding the environment?
Plans for site water quality, re-vegetation, and monitoring.
The process of restoring disturbed land to its original condition after mining.
What is reclamation?
A program to assess the effectiveness of reclamation and mitigation measures post-closure.
What is an environmental monitoring program?
A contractual agreement between an Aboriginal community and a mining company outlining mutual benefits.
What is an Impact and Benefit Agreement (IBA)
Concerns about contaminated sites left behind after mining operations.
What are "legacy issues" in the context of mine closure?
Reclamation activities that occur during the life of the mine.
What is progressive reclamation?
Environmental activities that continue long after the mine has closed.
What is post-closure monitoring?
What are some main potential impacts of mine closure on water quality?
Contamination from mining activities and acid drainage.
Why is community consultation important during mine closure?
To ensure that community concerns and historical land use are addressed.
Why is planning for mine closure essential before mining begins?
To ensure a safe, orderly, and environmentally sound conversion of the mine site
Buildings, roads, tailings disposal, and waste rock management.
What are some components that need to be addressed in a mine closure plan?
Give an example of a long-term care requirement after mine closure.
Treatment of mine discharge waters or monitoring tailings structures.
What is the role of environmental audits during mine closure?
To validate compliance with the closure plan and monitor activities.
What training opportunities can be provided to Aboriginal peoples during mine closure?
Training in environmental monitoring and community engagement.