McArthur River Mine independent expert panels
McArthur River Mine is an open pit zinc, lead and silver mining operation in the Northern Territory (NT), located approximately 700km south-east of Darwin near the township of Borroloola.
McArthur River Mining Pty Ltd (MRM) is the licenced operator of McArthur River Mine, and is a wholly owned subsidiary of Glencore Plc.
The NT Government has been working to ensure MRM meets its environmental obligations under the Environment Protection Act 2019.
A key aspect of regulatory requirements for McArthur River Mine includes the appointment of independent expert panels by the minister responsible for the Environment in consultation with the minister responsible for mining.
The 3 panels have been established to provide technical reviews to the regulator of McArthur River Mine with a focus on the operation of the North Overburden Emplacement Facility (NOEF), Tailings Storage Facility (TSF) and the progress being made with respect to finalisation of plans to achieve closure of the mine.
The findings of the independent expert panels will be released sequentially on a rolling 3 year cycle. The first report by the NOEF Panel is expected to be prepared during 2025, the second by the TSF Panel in 2026 and the third by the Mine Closure Panel in 2027.
The relationships between the expert panels and various parties relative to regulatory requirements is depicted below.
Since 1 July 2024 the Minister for Lands, Planning and Environment is responsible for regulation of mining in the NT subject to the Environment Protection Act 2019.
Terms of reference for the 3 independent expert panels have been approved by the minister. The terms of reference were developed in consultation with the operator and have been endorsed by the Northern Territory Environment Protection Authority.
Establishment of the expert panels - expressions of interest
Following public calls for expressions of interest from suitably qualified and recognised technical experts, independent chairpersons for panels have been appointed.
The minster responsible for mining, in consultation with the minister responsible for the environment, appointed Dr Alan Robertson as the independent chairperson for the NOEF and TSF panels in January 2024.
The minster responsible for environment, in consultation with the minister responsible for the mining, appointed Dr Carl Grant as the independent chairperson for the Mine Closure Panel in November 2024.
The independent chairpersons work directly with the department and MRM to deliver against the terms of reference for the respective Independent Panels of Experts.
Mine Closure Panel
The purpose of the Mine Closure Panel is to provide the minister responsible for the environment with robust, independent technical advice regarding progress made by the operator in relation to planning for the closure of McArthur River Mine and related management.
To achieve this purpose, the Mine Closure Panel will undertake a technical review once every 3 to 5 years focused on the:
- development of closure and care and maintenance strategies for mine site domains, and the trajectory towards achieving agreed closure objectives, and
- the risk of potential catastrophic failure of the mine levee wall and the McArthur River diversion channel in view of future closure objectives.
The Mine Closure Panel was established in August 2025 with the Minister appointing Chris Dickinson, Tim Sharman, David Salmon and Dr Sheridan Coakes as members.
Read about the specialist expertise of the chairpersons and members of the panels.
Read the Mine Closure Panel terms of reference PDF (797.9 KB).
The Mine Closure Panel is scheduled to visit McArthur River Mine during 2026 and report their findings to the Minister in 2027.
North Overburden Emplacement Facility Panel
The purpose of the NOEF Panel is to provide the minister responsible for the environment with robust, independent technical advice regarding the effectiveness of NOEF management to achieve secure storage of waste rock so as to protect the health of the McArthur River from mine related impacts.
To achieve this purpose, the NOEF Panel will undertake a triennial technical review (once every 3 years) focused on the:
- outcomes of the NOEF management program
- NOEF seepage monitoring results and the appropriateness of the monitoring program, and
- construction quality records, critical controls, stability assessments
- cover trial results, cover performance
- performance of progressive rehabilitation of the NOEF.
The NOEF Panel was established in December 2024 with the minister appointing Dr David Jones, Chris Dickenson and Mike O’Kane as members.
Read about the specialist expertise of the chairpersons and members of the panels.
Read the NOEF Panel terms of reference PDF (800.4 KB).
The NOEF Panel visited McArthur River Mine during 2025 and submitted their findings to the Minister early in 2026.
Read the NOEF panel report PDF (6.8 MB).
Tailings Storage Facility Panel
The purpose of the TSF Panel is to provide the minister responsible for the environment with robust, independent technical advice regarding the effectiveness of TSF management to achieve secure storage of tailings so as to protect the health of the McArthur River from mine related impacts.
To achieve this purpose, the TSF Panel will undertake a triennial technical review (once every 3 years) focused on the:
- outcomes of the operator’s approved management program for the TSF, and
- seepage monitoring results and the appropriateness of the seepage system with respect to abating environmental risks to the McArthur River.
The TSF Panel was established in March 2025 with the minister appointing Dr David Jones, Chris Dickenson and Tim Fitton as members.
Read about the specialist expertise of the chairpersons and members of the panels.
Read the TSF Panel terms of reference PDF (797.2 KB).
The TSF Panel visited McArthur River Mine during 2025 and is scheduled to report their findings to the minister in late 2026.
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