The Mount Barker WastewaterTreatment Plant treats septic tank effluent from Mount Barker, Littlehampton and Nairne 

Prior to 1996, septic tank effluent was treated in a series of oxidation ponds. The ponds held the effluent for more than 60 days prior to being discharged to the Mount Barker Creek.

In 1997 the operation for treating wastewater included a microfiltration process – a first for South Australia.

The plant produces a high standard of treatment and reduces nutrients (phosphorus and nitrogen) remaining in the treated waste water.

Construction of the Laratinga Wetlands in 2001 provided further treatment and capacity to store treated waste water.

In August 2003 Council adopted the Strategy for futurecollection, treatment and reuse of STEDS effluent – 2020 prepared by Kellogg Brown and Root Pty Ltd (KBR) to achieve total reuse of treated effluent and improved treatment processes.

The lagoons were upgraded in 2006 to improve treatment process and the on-site storage capacity.

The volume of treated effluent reused has increased, reducing the volume discharged to Mount Barker Creek during winter months although Stormwater run off is being directed (unauthorised) into the system from individual homes effecting treatment capacity.

In 2014 a new upgraded microfiltration plant with a nominal capacity of 5,000 kilolitrs per day was installed.

back to top



Currently 3,200 Kilo Litres of effluent are treated daily. This is more than what is required to fill an Olympic size swimming pool every day.

Significant growth is being experienced in Mount Barker, Littlehampton and Nairne increasing the amount of effluent to be treated – estimated to be 5,400 Kilo Litres per day by 2020.

The Department of Health's new reclaimed water Guidelines now demands a much higher standard and in response, in 2011, the Little Dublin Road disinfection plant was constructed.

> More information about the Little Dublin Road Plant


back to top

Recycled Water Use

The Mount Barker District Council operates the largest Council wastewater treatment plant and recycled water scheme in SA, targeting 100% reuse of treated wastewater. 

> More information on Recycled Water Use is available here: http://www.mountbarker.sa.gov.au/recycledwastewater

> More information on Non Drinking Water use in Meadows is available here: http://www.mountbarker.sa.gov.au/meadowswater


back to top

Laratinga Wetlands

The Laratinga Wetlands, constructed in 1999, is a Mount Barker District Council development, located in Mount Barker in the beautiful Adelaide Hills of South Australia.

With a growing population, the disposal of treated water became a concern to Council . For many years the treated water flowed into the Mount Barker Creek and the impact on the ecology of the creek was becoming an issue. Upgrading of the waste water treatment plant began in the late 1990s and included plans to build the large artificial wetland to filter the water further and reuse it for local irrigators, parks and gardens.

> More infomation about the Laratinga Wetlands

Waste Water Treatment Plant Combined

back to top


More more information

Should you require further information please contact Infrastructure and Projects on 8391 7290 or email council@mountbarker.sa.gov.au


back to top

6 Dutton Road, Mount Barker SA 5251
T 8391 7200