Department of the Environment

Archived media releases and speeches

The Hon Mark Butler MP

Federal Member for Port Adelaide
Minister for the Environment, Heritage and Water

The Hon Amanda Rishworth MP

Parliamentary Secretary for Environment and Urban Water

Tony Zappia MP

Federal Member for Makin

Securing water supplies for the City of Salisbury

Joint media release
1 August 2013

The potable water demand in the City of Salisbury area will be reduced by up to 400 million litres per year, with the recent completion of two stormwater projects.

Parliamentary Secretary for the Environment and Urban Water Amanda Rishworth today officially opened the Unity Park Biofiltration and Reuse Scheme and the Salisbury Stormwater Harvesting Project.

Ms Rishworth said the Australian Government contributed $13.5 million towards the projects which will help to secure future water supplies for the City of Salisbury.

"Our investment in these two innovative projects is part of our ongoing commitment to help urban and regional centres prepare for a future with less water," Ms Rishworth said.

The Salisbury Stormwater Harvesting Project uses wetlands to capture and cleanse stormwater and involves building a series of bores to inject the water into the natural aquifer where it will be stored until extracted for use when needed. This avoids evaporation losses and also reduces the volume of urban runoff reaching Gulf St Vincent.

"It's expected that some 6.3 billion litres per annum of stormwater from this project will be used to irrigate green spaces in the city reducing the amount of potable water used, which is more than twice the capacity of the Hope Valley Reservoir," Ms Rishworth said.

Minister for Water and Member for Port Adelaide, Mark Butler said the projects are a great example of governments working together to best meet the water needs of urban and regional communities.

"We're committed to working with local governments to improve water security in urban and regional areas, and through our partnership with the local council we are helping the City of Salisbury secure a sustainable water supply," Mr Butler said.

Tony Zappia, the local member for Makin said the second project, the Unity Park Biofiltration and Reuse Scheme, puts technology to work by using infrastructure to treat water in a similar way to how it would filter naturally through a wetland ecosystem.

"This biofiltration system takes up about 10 per cent of the area of a wetland and has the potential to be used in townships throughout Australia where land is scarce and stormwater could supplement existing water supplies," Mr Zappia said.

"In an urbanised area where we don't have the space to create wetlands we're able to recreate a similar process to make the most of the water supplies available to us."

The water savings achieved through these projects would not be possible without the Australian Government's ongoing commitment to programs such as the National Water Security Plan for Cities and Towns and the National Urban Water and Desalination Plan.

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