Adelaide Desalination Plant


Customer: SA Water 

Contract type:  Design and Construct 

Location: Port Stanvac, South Australia 



Water & Wastewater Solutions Australia

Fast Facts

  • 650,000 m3 of earthworks
  • 2 subsea tunnels: 1.4 km and 1.1 km long
  • 40 km of fibreglass, steel and PVC pipework
  • 12 buildings
  • 10,000 people employed during construction

SA Water awarded the design, build, maintain and operate contract of the Adelaide Desalination Plant to the Adelaide Aqua consortia involving McConnell Dowell. The project involved the design, construction and commissioning of a 100 GL per annum reverse osmosis desalination plant.

As the largest water infrastructure project completed in South Australia, it encompassed extensive work in all construction disciplines including bulk earthworks, civil structures, marine, tunnel and underground, mechanical, electrical and building works.

The construction team established industry leading approaches in protecting the local environment by developing a customised floating detention and sedimentation system to minimise the impact of construction works on the local marine ecology.

The plant has set benchmarks for energy savings and minimised the physical footprint of the plant. The innovative pre-treatment process has provided high levels of reliability, by using less energy and reducing chemical dosing requirements.

Following a successful construction handover, the Adelaide Aqua O&M team continue to exceed the expectations of the client by reducing operating costs, environmental impacts and energy use


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