Wastewater services

This section has everything you need to know about how we manage our wastewater system, as well as your roles and responsibilities in maintaining it.

Our wastewater system

water treatment pond

Our wastewater system

About 16,000 kilometres of wastewater pipe across WA collects around 450 million litres of wastewater a day.

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Looking after our wastewater system

water pipe bursting

Looking after our wastewater system

We all have a responsibility to make sure we don't let the wrong things enter the system. Find out more.

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What to flush – and not to flush

toilet flush button

What to flush – and not to flush

The toilet is not a rubbish bin – remember to only flush the 3Ps: pee, poo and paper!

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How wastewater is treated

close up of pipes

How wastewater is treated

Wastewater goes through a series of rigorous treatment processes.

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How wastewater is used

trees over a lake

How wastewater is used

Making the most of our treated wastewater through recycling is an important part of sustainable development for the future.

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Our wastewater treatment plants

water quality inspection

Our wastewater treatment plants

Find out how our plants are helping to ensure the climate resilience, liveability and sustainability of our cities and towns.