Darwin Region Future Water Supply

Published 13:45 - 22/07/2021 Updated 08:00 - 26/07/2021

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To increase water security for all Territorians and as part of the development of a Strategic Water Plan, the Territory Government is considering infrastructure solutions for the Darwin Region. The Department of Industry, Tourism and Trade (DITT), in collaboration with the Australian Government, and Power and Water Corporation (Power and Water), are delivering a detailed business case, providing infrastructure options to meet the Darwin region’s future water supply needs.

In February 2021, the Territory Government released the Preliminary Assessment (Part A).

The report shows the water supply system in Darwin will need to be increased in the future to meet forecast social and economic growth. This means that over the long term, investment in new water supply infrastructure is needed. The same report also looked at potential solutions, and identified two short-listed options for further consideration:

  1. Option 1: Adelaide River Off-stream Water Storage (AROWS) and Manton Dam Return to Service (RTS) which can provide water for a range of use over the next 50+ years; and
  2. Option 2: Desalination and recycled water which can enable industry development in the short term (up to 10 years) at the proposed Middle Arm Sustainable Development Precinct.

Now, a detailed business case will investigate and evaluate these two options to respond to the forecast future urban, industrial and agricultural demand.

The business case will provide the information government needs to make an informed decision, including if, how and when to invest in new infrastructure.

For more information relating to the development of the Northern Territory Strategic Water Plan led by the Office of Water Security, the survey questions, and to find out about the water supply challenges that Darwin is facing, please download the factsheet or visit watersecurity.nt.gov.au

No decisions have been made and community input is essential to inform future decisions made by government.

Have your Say through the below survey before 8am Monday 26 July.


To increase water security for all Territorians and as part of the development of a Strategic Water Plan, the Territory Government is considering infrastructure solutions for the Darwin Region. The Department of Industry, Tourism and Trade (DITT), in collaboration with the Australian Government, and Power and Water Corporation (Power and Water), are delivering a detailed business case, providing infrastructure options to meet the Darwin region’s future water supply needs.

In February 2021, the Territory Government released the Preliminary Assessment (Part A).

The report shows the water supply system in Darwin will need to be increased in the future to meet forecast social and economic growth. This means that over the long term, investment in new water supply infrastructure is needed. The same report also looked at potential solutions, and identified two short-listed options for further consideration:

  1. Option 1: Adelaide River Off-stream Water Storage (AROWS) and Manton Dam Return to Service (RTS) which can provide water for a range of use over the next 50+ years; and
  2. Option 2: Desalination and recycled water which can enable industry development in the short term (up to 10 years) at the proposed Middle Arm Sustainable Development Precinct.

Now, a detailed business case will investigate and evaluate these two options to respond to the forecast future urban, industrial and agricultural demand.

The business case will provide the information government needs to make an informed decision, including if, how and when to invest in new infrastructure.

For more information relating to the development of the Northern Territory Strategic Water Plan led by the Office of Water Security, the survey questions, and to find out about the water supply challenges that Darwin is facing, please download the factsheet or visit watersecurity.nt.gov.au

No decisions have been made and community input is essential to inform future decisions made by government.

Have your Say through the below survey before 8am Monday 26 July.