The $366 million Alkimos Wastewater Treatment Scheme has been officially launched by the Western Australian Government.


The scheme includes a major treatment plant, an ocean disposal outlet and the extension of a main sewer to bring millions of litres of wastewater to the new facilities.  It has been developed over the past three years.


Water Minister Bill Marmion, who officially opened the scheme today, said Stage One had been designed to treat and dispose of up to 20 million litres of wastewater daily - but that would be expanded in the coming decades to ultimately be able to treat 150 million litres daily.


The Alkimos Wastewater Treatment Scheme joins wastewater schemes at Woodman Point, Subiaco and Beenyup to treat more than 80 per cent of Perth’s wastewater.


“The provision of first-class water and wastewater infrastructure is recognised as an essential part of meeting expansion as WA continues to grow,” Mr Marmion said.


The Alkimos Wastewater Treatment Scheme was developed by the Water Corporation which worked with a private sector partnership, the Alkimos Water Alliance. The alliance comprised Brookfield Multiplex, Macmahon Contractors and Zublin Australia.