Reports and Research

NQBP has undertaken detailed studies and engaged with a range of stakeholders to understand the source of natural sediment accumulation and appropriate removal and placement options at the Port of Mackay.

These technical reports and associated management plans were developed as part of the Port of Mackay Sustainable Sediment Management assessment and provided the required information to support a new 10-year Sea Dumping Permit application subsequently issued in October 2022. The new permit allows for continued offshore placement of maintenance dredged material from the Port of Mackay up until 2032. For more detailed information on any aspect of this assessment, you can view the reports and associated appendices below.

To see how all the reports and research fit together, view our research diagram.

Summary documents

• Sustainable Sediment Maintenance Summary
• Public Information Package

Sustainable sediment management

• Appendix A Comparative analysis of placement options
• Appendix B List of Technical Advisory Consultative Committee (TACC) members
• Appendix C Sedimentation avoid and reduce assessment
• Appendix D Marine sediment  properties report
• Appendix E Comprehensive beneficial reuse assessment
• Appendix F Environmental values assessment
• Appendix G Environmental values assessment addendum report
• Appendix H Economic impacts of no maintenance dredging

Peer review

• Peer review Final acceptance letter

Environmental risk assessment

• Environmental Risk Assessment Report
• Appendix A Risk assessment methodology
• Appendix B Likelihood of occurrence assessment
• Appendix C Significant impacts assessment
• Appendix D Protected matters search
• Appendix E Dredge plume modelling
• Appendix F Sediment resuspension assessment
• Appendix G Sediment characterisation assessment
• Appendix H Sediment characterisation assessment (additional areas)

Management plans

• Environmental Thresholds Report
• Long-term Maintenance Dredging Management Plan 2018 - 2043
• Maintenance Dredging Environmental Management Plan
• Marine Environmental Monitoring Plan

Research diagram