We supply over 2 million people with clean drinking water – and we take away almost 452 million litres of wastewater a day.

Wastewater is 99.9% water and mostly comes from kitchen sinks, showers and washing machines. Once treated, it can be recycled for reuse or returned to the natural water cycle. 

Our goal is to recycle 30% of wastewater by 2030.

The collection, treatment and disposal of wastewater is important in protecting your health and our environment. For more information on our commitment to work collaboratively with our Health Regulator to operate our wastewater services while protecting public health, please see our Memorandum of Understanding

How we manage your wastewater

After you've used your water, it enters one of the 17,280 kilometres of wastewater pipes which we maintain and operate. It is then pumped to one of our 113 wastewater treatment plants.

The wastewater then goes through a series of rigorous treatment processes that make the water safe to recycle or return to the environment.

How Perth's wastewater system works

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