Woodman Point Wastewater Treatment Plant in Western Australia to undergo expansion

Woodman Point Wastewater Treatment Plant (WWTP), the largest wastewater treatment plant in West Australia, will undergo a major expansion.

A $196m programme of work is about to commence to boost capacity by 40 million litres a day.

Water Minister Mia Davies said joint venture partners Henderson-based company Civmec Construction and Engineering and Black & Veatch Australia were the preferred proponent to upgrade and expand the WWTP.

The project will enhance the plant's capacity from 140 to 180 million litres a day to support the population growth in the region.

Davies said: "The Woodman Point plant is a critical part of Perth's wastewater treatment network and it currently serves about 680,000 people.

"Once this large program of work is completed, it will be able to accommodate 900,000 people by 2019. This is a significant investment by the Liberal National Government which will create more jobs for West Australians."

The project will be delivered using a construction alliance model, which the corporation has used to complete other complex infrastructure projects, including its two desalination plants.

This project is expected to be complete by the end of 2019, with construction on site planned by early next year.

The expansion will include a new grit removal facility, a new flow distribution channel, expansion of current odour collection and treatment systems, new sedimentation tanks and reforming the existing batch reactor to a permanent aeration facility.