WestConnex M4-M5 GWTP Finished and Treating Ground Water

April 19, 2020

The commissioning of M4-M5 Ground Water Treatment Plants has finished – the plants began treating ground water and stormwater since December, 2019.

Following the successful construction and operation of a temporary plant for the WestConnex M4 East, Gradiant Australia was awarded the contract to construct three temporary WTP in May, 2019 for the M4-M5 Link Tunnels. The water treatment plant has the capacity to treat 2.5 million litres of water a day from sources of stormwater, groundwater ingress and tunnel wash down water.

Treatment processes featured in the plant include: Coagulant Dosing, pH correction, Clarification, Media Filtration and Sludge Dewatering via a Filter Press. After treatment the water is released into local waterways.

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