Current Stage
Public Comment Closed on Case for Assessment
Proposal Details
Client: MMG Australia Limited
Premises: Roseberry Mine
Activity: depots for the reception, storage, treatment or disposal of waste
Class of Assessment: 2B
Important Dates
Assessment Commenced: 5/7/2022
Case for Assessment Opened for Public Comment: 6/12/2025
Case for Assessment Closed for Public Comment: 12/1/2026
The Proposal
The proposal is for a permanent change of operations at MMG's 2/5 Dam tailings storage facility in Rosebery. The tailings storage facility was previously approved by the EPA in 2016 with a requirement for tailings to be deposited sub aqueously (under water). The change in operations proposes tailings to be deposited subaerially. It is anticipated that the required minimum 2m water cover on closure will no longer be possible if permanent subaerial tailings deposition is undertaken.
The proponent has lodged a Permit Application with a supporting Environmental Impact Statement (EIS) to West Coast Council.
The application was referred to the Board of the Environment Protection Authority (the Board) for assessment under the Environmental Management and Pollution Control Act 1994 (EMPCA).
Notice of Intent
MMG Australia Limited, 2-5 Dam Tailings Storage Facility, Stage 2 Subaerial Deposition and Closure, Roseberry - NOI (PDF 20Mb)
Environmental Impact Statement Guidelines
EIS Guidelines have been prepared by the Board to assist the proponent to prepare a case for assessment. Based on the information contained in the Notice of Intent, the guidelines identify the key issues which are expected to be relevant to the assessment of the proposal.
MMG Australia Limited, 2-5 Dam Tailings Storage Facility, Stage 2 Subaerial Deposition and Closure, Roseberry - EIS Guidelines (PDF 446Kb)
Public Exhibition of Documentation
A copy of the permit application and all plans and other documentation submitted with the permit application (including the EIS), were made available for public inspection, the pubnlic consultation period has now closed.
Environmental Impact Statement
The purpose of the EIS is to provide a source of information upon which interested individuals, groups, government agencies and the Board may consider the environmental impacts of the proposal.
The EIS was prepared by the proponent on the basis of the Project Specific Guidelines for preparation of an EIS which were provided by the Board.
MMG Australia Limited, 2-5 Dam Tailings Storage Facility, Stage 2 Subaerial Deposition and Closure, Roseberry - EIS (PDF 15Mb)
MMG Australia Limited, 2-5 Dam Tailings Storage Facility, Stage 2 Subaerial Deposition and Closure, Roseberry - Appendices (PDF 183Mb)