Overview
Department of Defence proposes to carry out 2 capital dredging campaigns of approximately 100,000m3 to 120,000m3 as part of upgrades to the Royal Australian Navy wharf facilities and basin navigation area at HMAS Coonawarra. Dredge spoil would discharge at a location near HMAS Coonawarra, Larrakeyah, Darwin. The proposed action includes ongoing maintenance dredging at HMAS Coonawarra in the order of 10,000m3 to 15,000m3 every 5 to 7 years.
Why we are consulting
Your feedback plays an important role and will be considered by the NT EPA in deciding whether the proposed action requires environmental impact assessment, and if so the required method of assessment.
Consultation helps the NT EPA and proponent to identify issues of concern and potential effects, as well as get feedback from stakeholders on project options or potential mitigation measures.
The NT EPA has prepared guidance for making a public submission PDF (260.9 KB) that outlines when comments will be sought, how to make an effective comment and what will happen to your comment.
Statutory notice 13 April 2022
The NT EPA invites public comment on a referral for standard assessment submitted by Department of Defence to carry out 2 capital dredging campaigns and ongoing maintenance dredging as part of upgrades to the Royal Australian Navy wharf facilities and basin navigation area at HMAS Coonawarra, Larrakeyah, Darwin.
The referral documents can be inspected and obtained below. Interested persons may make a submission by 16 May 2022. The NT EPA publishes this notice in accordance with regulation 52(1) of the Environment Protection Regulations 2020.
Documents
| Referral documents | Type |
|---|---|
| Referral form | PDF 782.5 KB |
| Referral report and appendices A, D and E | PDF 15.6 MB |
| Appendix B - marine sediment sampling and analysis report 2019 | PDF 11.2 MB |
| Appendix C part 1 - marine sediment sampling and analysis report 2021 | PDF 6.2 MB |
| Appendix C part 2 - marine sediment sampling and analysis report 2021 | PDF 13.7 MB |
| Appendix C part 3 - marine sediment sampling and analysis report 2021 | PDF 3.4 MB |
| Appendix F part 1 - dredging modelling report | PDF 17.3 MB |
| Appendix F part 2 - dredging modelling report | PDF 14.5 MB |
| Appendix G - draft dredging and disposal management plan | PDF 8.1 MB |
For more information about the referral read the environmental impact assessment register for HMAS Coonawarra - Dredging and Dredged Material Management.