Great Southern

Steady population growth in coastal towns and the impact of climate change are driving our plans for the Great Southern.

The region has a number of local independent town water supply schemes. There are also 2 integrated networks – the Lower Great Southern Towns Water Supply Scheme (LGSTWSS) and the Great Southern Towns Water Supply Scheme (GSTWSS).

Summaries of our regional water and wastewater schemes are currently being updated and will be available shortly. 

Our plans to secure drinking water supplies

In the Great Southern region, we have a number of strategies to help secure drinking water supplies for the mid- to long-term, including:

  • a recently commissioned new pipeline between the Stirling and Harris dams, allowing water from Perth’s Integrated Water Supply Scheme (IWSS) to supply the GSTWS, effectively future proofing the scheme.
  • developing new groundwater and surface water sources in the region
  • undertaking feasibility studies for a future desalinated water source for the LGSTWSS
  • implementing alternate non-drinking water supplies for local community use, such as irrigating public open spaces, helping reduce demand on high quality drinking water supplies.

Our wastewater services

We operate and maintain 20 wastewater schemes in the region.

To cater for community development and growth, there have been significant upgrades to the wastewater treatment plants at Denmark, Narrogin and Albany.

Commitment to increasing water efficiency and water recycling

On average we recycle 66% of our wastewater flows for beneficial community re-use across the region, including 100% re-use in Narrogin, Esperance and Katanning. In Albany, around 2,000 million litres of treated wastewater is used on an Albany tree farm each year, making effective use of this resource while well over a million trees capture some 70,000 tonnes of carbon from the environment.

Great Southern dry season response

During winter in both 2017 and 2018, rainfall levels across the south eastern corner of the Great Southern Region were lower than average, resulting in poor inflow to many of our surface dams in towns such as Borden, Ravensthorpe, Ongerup and Jerramungup.

Low rainfall coupled with ongoing hot and dry conditions have also impacted on-farm storages, Shire dams and DWER’s strategic community water supplies.

See our Great Southern dry season response page for more information.

Projects in the Great Southern region

Improving WA's water services

Murchison program
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