10 year plan for the South West

Population growth, limited water resources and growing demand from industry and agriculture present major challenges for us in this region. Find out about our immediate plans to secure water services for the South West for the next 10 years.

We service most of the towns in the South West through independent local dam and groundwater sources.

Bunbury and Busselton and serviced by independent water service providers – Aqwest and Busselton Water.

Our plans to secure drinking water supplies

Dams will continue to be important water sources however our drying climate means we cannot rely on them alone in the future.

What we are doing to expand and improve water supplies in the South West:

  • We are expanding Margaret River, Augusta and Walpole’s water supply schemes. This includes improving source capacity, and upgrading water treatment, storage and pipe networks.
  • Planning a new groundwater source for Pemberton.
  • Upgrading the Warren-Blackwood Regional Water Supply Scheme and connecting to other towns like Manjimup – this involves supplementing Millstream Dam with groundwater from the Yarragadee aquifer.
  • Investigating ways to expand Harris Dam – the main source that supplies the Great Southern towns and Collie – and connecting the nearby Stirling Dam.

Improving our wastewater services

Busselton, Bunbury, Margaret River, Manjimup and Pemberton wastewater systems will receive major upgrades to meet population growth and industrial development.

Capel, Augusta, Bridgetown and Daradanup wastewater systems will receive minor upgrades.

Reducing water use

Our customers in the South West are committed to water conservation with some of the lowest water use per person in the state.

We are working with the Manjimup and Dalyellup communities to encourage waterwise behaviours. This includes retrofitting inefficient appliances for residential and non residential customers.  More about these water saving programs.

Increasing water recycling

About 27% of wastewater in the South West region is recycled each year and we plan to increase this amount in the future. This amounts to 3.7 billion litres each year.  More wastewater by volume is recycled in the South West region than any other region in WA. Major recycling schemes include:

  • Busselton Golf Club irrigation scheme
  • Margaret River recycling scheme
  • Kemerton and Manjimup tree farms

We are also committed to increasing long-term water recycling for public open space and industrial use from Busselton and Bunbury Wastewater Treatment Plants.