Seawater Reverse Osmosis Plant

Welcome to the project webpage for the proposed Seawater Reverse Osmosis (SWRO) Plant Project on the Cocos (Keeling) Islands in the Indian Ocean Territories.

The information contained within the webpage is derived from the SWRO Plant Project Parliamentary Standing Committee for Public Works Statement of Evidence. Refer to the PWC Process.

The project will deliver a new 200 kilolitres per day (kL/day) SWRO Plant for the Cocos (Keeling) Islands West Island community water supply. The plant will replace the use of freshwater lens located under the operating airfield. This important project will provide water security for the community, and support future economic development of the island.

The SWRO Plant is planned to be operational in late 2026.

Proposed works

The scope of works includes:

  • Install a new 200kL/day SWRO Plant on Part Lot 100, including establishment of bores to supply the plant.

Location

The SWRO Plant will be located adjacent to the existing Wastewater Treatment Plant (WWTP) on Sydney Highway, Cocos (Keeling) Islands, West Island. The SWRO Plant, once constructed will replace the reliance on the freshwater lens located under the operating airfield.

Project Progress to date: January 2025

  • Site clearing works have been completed
  • Installation of the bores to supply the plant are complete
  • Supporting power upgrades are due for delivery by June 2025
  • Wastewater Treatment Plant upgrades are under way

Project Delivery Update

The 2024 Approach to Market  for the project was above the available budget.

The department is working through other delivery solutions and options in conjunction with the Defence Airfield Upgrade Project  For more information please refer to: Cocos (Keeling)Islands Airfield Upgrade.

Further updates will be provided as the project progresses.

The department remains committed to the delivery of this vital project and ensuring a safe and sustainable public water supply.

Community engagement

Key stakeholders and residents on the Cocos (Keeling) Islands will continued to be informed of the project through articles in The Atoll, as well as a fact sheet and frequently asked questions (FAQs).

The Project Team will have direct consultation with key on-island stakeholders regarding the projects.

Public Works Committee Process

Contacts and further information

Please email any questions or queries to the Project Team at IOTSDA@infrastructure.gov.au.