Aroona Alliance


The Western Australian Water Corporation selected SUEZ and its partner Transfield Services, to operate and maintain the water production and wastewater treatment assets of Perth, the 4th largest city in Australia and one of the driest in the world.

The contract began on July 1, 2012, and has an initial term of 10 years (with a possible extension of a further 5 years).

Overall, SUEZ and its partners manage and operate 6 groundwater treatment plants, 14 wastewater treatment plants and 2 advanced water recycling plants, as well as 13 dams, 190 boreholes and 520 km trunk mains to deliver reliable services to Perth’s 1.9 million residents, through an Integrated Alliance named Aroona.

The Aroona Alliance has a strong focus on driving efficiencies and improving operational performance. It continues to focus on delivering excellent quality and reliable services to the people of Perth, as well as protecting water as a precious resource for Western Australia’s future generations.

View the Aroona Alliance brochure

  • Perth (metropolitan area), Western Australia
  • Water Corporation
Project Type:
  • Operations and Maintenance

  • Municipal
  • Drinking Water
  • Waste Water
  • Reuse

  • 19 Water Treatment Plants (726 MLD)
  • 14 Wastewater Treatment Plants (430 MLD)
  • 2 Advanced Wastewater Treatment Plants
  • O&M: 2012 - 2022
Population served:
  • 1.9 Million
  • $1.4 Million of sustainable savings delivered in 2012/13
  • 99.9% compliance with groundwater allocation license (2012/13)
  • 97% compliance with Department of Environment and Conservation (DEC) requirements for wastewater treatment (2012/13)
  • 7% increase in productivity rate
  • 100% minor capital works projects delivered on time and on budget
Contact Details

Level 7, 3 Hasler Rd, Osborne Park, WA 6017

Tel: 08 9371 4000

© 2017 SUEZ Water Pty Ltd