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MINES AND ENVIRONMENT 

MINE CLOSURE  2024 CONFERENCE 

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We extend a special thank you to Celine Mangan (MC) of Mineral Resources Limited,  Sponsors O'Kane Consultants and Cleanaway,  all Speakers who contributed their time to the success of the event, those who travelled to attend, and all locals that attended

The sold-out event was attended by hydrogeologists, geoscientists, mine closure planners, environmental managers, and all stakeholders.

The audience was multi-disciplinary, and the speakers delivered insightful presentations. Robust conversations were held, and many attendees walked away better informed and updated.

We received an overwhelmingly positive response and are extremely grateful.

Please subscribe to this Mines and Environment website to receive updates on the 2025 Mine Closure Conference. More details will be shared soon. 

Order your livestream copy here 

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Order your livestream copy 

If you have attended the event and would like to order a copy of the livestream (individual speakers or all ) please fill in the below form 

Cost $75 per speaker or $250 for all Speakers 

Livestream copies

Master of Ceremonies 

Celine Mangan
Manager Closure Rehab & Contaminated Sites

Mineral Resources Ltd 

Recently recognized as one of the top three finalists in the prestigious 2024 Women in Resources Awards (WIRA) by CME WA, her achievement coincides with the release of a CSIRO report highlighting the potential for a burgeoning industry to support mine closures, presenting economic opportunities for Indigenous communities.

With a rich background spanning 15 years in both technical and managerial capacities, Ms. Mangan spearheaded the MinRes team's efforts in optimizing mine closures.

Simultaneously, she actively mentored and nurtured the next generation of female scientists and engineers within the organization.

It is with great pride that we announce Celine Mangan as the master of ceremonies for the Mines and Environment 2024 Mine Closure Conference.

PROGRAM TOPICS  
 

Latest news from WA’s Lead Regulatory Agency for Mine Closure
Dr Danielle Risbey  I  Team Leader Mine Closure & Technical Advice, DMIRS

From a State, National and International perspective, there is a disproportionately short list of successful examples of mine closure in comparison to the number of new mines gaining approval each year.  
To explore opportunities to improve mine closure policy and practices in Western Australia, the Department of Energy, Mines, Industry Regulation and Safety (DEMIRS) restructured its Resource and Environmental Compliance Division and created a Mine Closure and Technical Advice Team (Closure team) in early 2022.

Following some reflection of over a decade of mine closure plan assessment, the Closure team is leading the revision of the Mine Closure Plan guidelines in an effort to improve the information provided in mine closure plans.

Other future project directions for the Closure Team will involve exploring ways to improve the regulation of mine closure implementation and aim to make the process of relinquishment a more attractive option than entering a “lengthy, unwarranted period of care and maintenance”.

This presentation will provide insights into the key changes planned for the MCP guidelines and other proposed mine closure related project work.
 
The Pilbara Iron-Ore Industry and Mine Closure Planning
Natalie Brown 
Lecturer / University of Western Australia ​

This presentation  discusses mine closure regulation under the Western Australian State agreement regime; specifically, Pilbara iron ore mines authorised by State agreements. Not all Pilbara agreement mines are subject to Western Australia’s legislative mine closure requirements. 

 

Pilbara agreement mines are only subject to mine closure planning requirements in three situations: if the  Environment Minister has imposed, an implementation condition following an environmental impact assessment under Part IV of the Environmental Protection Act 1986 (WA); the Mining Act 1978 (WA) applies to the mine; or an agreement term imposes an obligation to do so. Some Pilbara mines slip through the regulatory gaps because of the unique interaction of State agreements with other legislation.

 

While the focus of this presentation is on the Pilbara agreement mines, the same propositions apply to all mines authorised by State agreements in WA.

The Mine Closure Solutions Industry: Growing the value created through mine closure and post mine transitions. 

Dr Guy Boggs

CEO, CRC Time (Cooperative Research Centre for Transformations in Mining Economics) 

 
Recent research undertaken by CRC TiME and the CSIRO has identified the closure of nearly 240 Australian mines by 2040, estimating an annual expenditure of $4-8 billion on the diverse range of activities associated with mine rehabilitation and closure.
 
Australia has the potential to turn the mine closure challenge into opportunities for business, domestically and globally. The report identifies existing and emerging opportunities across four categories:
•    Engagement and partnership, such as services, equipment and technology that enables effective engagement, co-design of post-mining solutions and mutually beneficial partnerships.
•    Waste reduction and recovery, such as reprocessing of mine wastes to obtain minerals and use of mine wastes for new purposes.
•    Mine rehabilitation, such as services and technologies that improve performance a
nd cost-effectiveness.
•    Land use transitions, such as repurposing for assets for renewable energy generation.
 
This presentation will explore this opportunity and the enabling platforms being developed by CRC TiME and our partners to capitalise on this opportunity over coming decades.

 

Remote Monitoring Net Ecosystem Productivity

Lachlan Ashby

Environmental Scientist | O'Kane Consultants 


Post-closure monitoring and adaptive management is a critical stage of the rehabilitation of mine-affected landscapes. Unfortunately, the level of effort and costs associated with this stage of the mine lifecycle is often underestimated.

Frequently the costs to mobilize a team to ground-survey a wide footprint of natural and disturbed ecosystem can be cost prohibitive. In addition, ground-surveys traditionally target the lagging indicators of success. Remote monitoring can present an opportunity to monitor leading indicators of ecosystem recovery and support a more flexible approach to adaptive management.


Technological advancements have significantly increased the accessibility of unmanned aerial vehicles for high-resolution imagery. This presentation will illustrate how seasonal, aerial imagery can be paired with established monitoring methods to help assess the progress of areas undergoing rehabilitation. This approach can assist in early recognition of revegetation success factors and inform rehabilitation plans for long term net ecosystem productivity.


Abstract Keywords: Rehabilitation, Vegetation, Aerial Monitoring, Evapotranspiration

​Co-Author’s Name,

Company Affiliation, and Email Address:Miriam Clark, Okane Consultants, mclark@okc-sk.com

The Future Direction of Pit Lakes: Part 2, Corporate and Regulatory Closure Needs to Improve Management

Dr Cherie McCullough

Director,  Principal Environmental Scientists | Mine Lakes Consulting 

 

Pit lakes may present significant risks to ecological and human receiving environments but can also provide beneficial end use opportunities. From initial planning to long-term closure, regulation and corporate management of pit lake closure can be improved to realise more sustainable pit lake legacies.

 

We recommend strategies to structurally improve the practice of pit lake closure for the mining industry. We identify barriers that often limit the understanding of pit lake processes and closure practices and suggest ways that closure practitioners, and regulators can improve pit lake management.

 

Recommended corporate changes include: conducting risk assessments at an early planning stage; funding pit lake research and trials; allowing data sharing and case study publication; avoiding the simplifying assumption of a fully mixed pit lake when making predictions; integrating climate change into pit lake predictions; improving the quality of technical reporting; generating industry guidance for pit lake rehabilitation; maximizing opportunities for subaqueous, in-pit disposal of mine wastes; creating a positive legacy through beneficial uses of pit lakes; and verifying predictions using long-term monitoring.

 

Recommended regulatory advancements include: raising expectations of corporate pit lake closure planning and execution; acknowledging good pit lake closure examples but recognising lessons also; balancing the need to simulate long closure periods with expectations of model reliability; considering the value of pit lakes as future water resources during approvals; and requiring closure costing commensurate to closure risk.

International principles and standards for the ecological restoration and recovery of mine sites

Dr Renee Young

Program Director, Conservation and Restoration | Western Australia Biodiversity Science Institute (WABSI)