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Cockatoo Island Multi-User Supply Base

Project
Proponent: 
Crestlink Pty Ltd
Proposal description: 

Crestlink Pty Ltd (formerly Kimberly technology solutions Pty Ltd) is referring the Cockatoo Island Multi-User Supply Base to develop an upgraded airfield, a wharf and an aftermarket subsea workshop as well as other related support infrastructure. The proposal is located on Cockatoo Island in the Shire of Derby.

The proposal would include a loss of 0.54 hectares (ha) of hard coral and algae of which 0.3 ha is very sparse hard coral. The proposed new wharf would run parallel to the shoreline.

The impacts to terrestrial vegetation are based on the loss of 34.23 ha of native vegetation and fauna habitat

Assessment Number: 
2314
Region: 
Kimberley
Referred under EP Act: 
s38
Industry sector: 
Infrastructure
Last updated: 
September 5, 2025
Current Status: 
EPA Report and Recommendations released - appeals open
EPA Report and Recommendations released - appeals open
1. Referral
Comment on this referral: 
Cockatoo Island Multi-User Supply Base - Referral
Comment period: 
Friday, 21 July, 2017 to Thursday, 27 July, 2017
Referral documentation: 
PDF icon Referral Form
PDF icon Supporting Document
PDF icon Technical Study - Marine Flora and Fauna
PDF icon Technical Study - Terrestrial Flora and Fauna
2. Decision on whether to assess this proposal
Chair's Determination: 
Assess - Additional Assessment Information (public review)
Extract of determination: 
PDF icon Cockatoo Island Multi-User Supply Base
Date published: 
Thursday, 21 October, 2021
3. Assessment
Environmental Review
Public submissions: 
Tuesday, 26 November, 2024 to Tuesday, 7 January, 2025
Make a submission: 
Cockatoo Island Multi-User Supply Base - Additional Information
Environmental Review documentation: 
PDF icon Proposal Content Document
PDF icon Supporting Document
PDF icon A1 - Technical Study - Marine Flora and Fauna.pdf
PDF icon A2 - 613157805-MEM-A-LAU and Bay 1 Habitat Condition Memo (23 October 2017).pdf
PDF icon A3 - CI015 MScience 2011 Closure Knowledge Base and Closure Criteria 18 March 2012 (PLR00211686).pdf
PDF icon A4 - MSCIENCE MEMO - Barge wharf benthic habitat survey.pdf
PDF icon A5 - FINAL MScience Seawall Closure Options Assessment.pdf
PDF icon A6 - 12526793-REP-0_KSCC Coastal Processes Modelling Report (2021-04-27).pdf
PDF icon A7 - CI069 MScience 2010 Marine Monitoring 9th Construction Survey 18 March 2012 (PLR00211654).pdf
PDF icon A8 - Aprasia Wildlife (2009) Fauna Assessment of Cockatoo Island (Desktop Review).pdf
PDF icon A9 - Cockatoo Island Baseline Flora Fauna and SRE survey RevA 2014_08_06.pdf
PDF icon A10 - Technical Study - Terrestrial Flora and Fauna.pdf
PDF icon B1 - Construction Environmental Management Plan.pdf
PDF icon B2 Operational Environmental Management Plan.pdf
Date Published (Environmental Review documentation): 
November 26, 2024
Proponent response to submissions: 
PDF icon Response to EPA, DCCEEW Comments and Public Submissions (2).pdf
PDF icon 12662246-REP-2_KTS_Construction Environmental Management Plan.pdf
PDF icon 12662246-REP-2_KTS_Operational Environmental Management Plan.pdf
PDF icon 12662246-REP-3_KTS_Supporting Document.pdf
PDF icon A1 - GHD (2025a) Cockatoo Island Multi-User Supply Base Technical Study - Marine Flora and Fauna .pdf
PDF icon A2 - 613157805-MEM-A-LAU and Bay 1 Habitat Condition Memo (23 October 2017).pdf
PDF icon A3 - CI015 MScience 2011 Closure Knowledge Base and Closure Criteria 18 March 2012 (PLR00211686).pdf
PDF icon A4 - MSCIENCE MEMO - Barge wharf benthic habitat survey.pdf
PDF icon A5 - FINAL MScience Seawall Closure Options Assessment.pdf
PDF icon A6 - 12526793-REP-0_KSCC Coastal Processes Modelling Report (2021-04-27).pdf
PDF icon A7 - CI069 MScience 2010 Marine Monitoring 9th Construction Survey 18 March 2012 (PLR00211654).pdf
PDF icon A8 - Aprasia Wildlife (2009) Fauna Assessment of Cockatoo Island (Desktop Review).pdf
PDF icon A9 - Cockatoo Island Baseline Flora Fauna and SRE survey RevA 2014_08_06.pdf
PDF icon A10 - Technical Study - Terrestrial Flora and Fauna.pdf
PDF icon A11 - EMU 1957 Cockatoo Island Birds by Warham J.pdf
PDF icon A12 - Aerodrome Concept Drainage Design.pdf
PDF icon A13 - GHD (2025b) Results of February 2025 Marine Environmental Quality Survey.pdf
PDF icon A14 - GHD (2025c) Results of Preliminary Contaminant Survey of Reclamation Fill.pdf
PDF icon A15 - Ecologia (2025) Cockatoo Island Multi-Use Supply Base Targeted Fauna And Flora Survey.pdf
PDF icon A16 - GHD (2025d) Underwater Noise Impact Assessment.pdf
Date published (Proponent response to submissions): 
April 17, 2025
Change to proposal during assessment under s. 43A
s. 43A notice: 
PDF icon s.43A Notice - 071123.pdf
Date of approval s. 43A: 
Tue, 07/11/2023
4. EPA Report on assessment
EPA Report Number: 
1790
EPA Report: 
PDF icon EPA Report 1790 Cockatoo Island.pdf
Key Environmental Factors: 
Social Surroundings
Benthic Communities and Habitats
Marine Environmental Quality
Marine Fauna
Flora and Vegetation
Terrestrial Fauna
Date published: 
Friday, 5 September, 2025
Appeals close: 
Friday, 26 September, 2025

Source URL:https://www.epa.wa.gov.au/proposals/cockatoo-island-multi-user-supply-base