Ensham Life of Mine Extension Project

Project summary

Ensham proposes to increase the life of the existing underground operations by extending the underground bord and pillar mine into an area identified as the Project Site which includes zones 1, 2 and 3 (Figure below).

The Project would be located in the western part of the central Bowen Basin approximately 200 kilometres west of Rockhampton and 35 kilometres east of Emerald.


The Project covers an area of approximately 2,737 hectares and includes the following three zones:

  • Zone 1: MDL 217 and requires a ML application to be lodged (approximately 2,134 ha)
  • Zone 2: partially includes existing leases ML 70326, ML 70365 and ML 7459 (approximately 394 ha)
  • Zone 3: partially includes existing leases ML 7459 and ML 70366 (approximately 209 ha).

With inclusion of the proposed project, Ensham Mine would:

  • continue to produce at current production rates and would not seek to change the current Environmental Authority (EA) limit (condition A5) which authorises the mining of 12 million tonnes of Run of Mine (ROM) coal per annum.
  • extend the operating life of the existing underground bord and pillar operations at the Ensham Mine by up to nine years to approximately 2037, with underground decommissioning/rehabilitation expected to be completed by 2039
  • no additional surface infrastructure or surface disturbance is proposed as part of the new mine lease area (ie. Zone 1).
  • continue to utilise existing operational mine equipment and infrastructure located on the existing and approved mining leases.
  • enable Ensham to provide the continuation of long-term employment within the Central Highlands region.

The Project will be assessed under the environmental impact statement (EIS) process in chapter 3 of the Environmental Protection Act 1994.

Enquiries about the EIS documents can be made by emailing enquiries@idemitsu.com.au or by phoning 1800 290 620.

Persons with special needs may also ask for assistance in accessing the materials by phoning or emailing Idemitsu using the above contact details.

Environmental Impact Statement Documents


EIS Index

Executive summary

Chapter 0 – Executive summary


Chapter 1 – Introduction

Chapter 2 – Consultation process

Chapter 3 – Approvals

Chapter 4 – Project description and alternatives

Chapter 5 – The EIA Process

Chapter 6 – Climate

Chapter 7 – Land use and tenure

Chapter 8 – Land resources

Chapter 9 – Rehabilitation and closure

Chapter 10 – Surface water resources

Chapter 11 – Flooding

Chapter 12 – Groundwater

Chapter 13 – Terrestrial ecology

Chapter 14 – Aquatic ecology

Chapter 15 – Air quality

Chapter 16 – Greenhouse Gas

Chapter 17 – Noise and vibration

Chapter 18 – Waste management

Chapter 19 – Hazards and safety

Chapter 20 – Cultural Heritage

Chapter 21 – Social

Chapter 22 – Economics

Chapter 23 – Transport

Chapter 24 – Scenic amenity and lighting

Chapter 25 – Matters of national environmental significance

Chapter 26 – Commitments

Chapter 27 – Conditions


Appendix A-2 Abbreviations

Appendix A-3 ToR Cross-check

Appendix A-4 References

Appendix B-1 Land Resources

Appendix B-2 Subsidence

Appendix C-1 Terrestrial Ecology Flora

Appendix C-2 Terrestrial Ecology Fauna

Appendix D-1 – Aquatic ecology

Appendix D-2 – Stygofauna

Appendix E-1 – Surface Water Quality

Appendix E-2-Water balance model development

Appendix E-3 – Hydrology and flooding

Appendix F-1a – Groundwater addendum

Appendix F-2 – Underground Water Impact Report

Appendix G-1 Air Quality

Appendix H-1 Noise and Vibration

Appendix I-1 Social impact assessment

Appendix J-1 Economics