More than just water

All about our sewerage system

Wonder what happens when you press 'flush'? Or send water down the drain or sink?

It’s our job to take it and safely treat it. Plus manage and grow an underground network of sewer pipes and above-ground pumps and water recycling plants.

Right now, that’s more than 10,860 km of sewer pipes, 276 sewage pump stations, and eight water recycling plants.

This financial year alone we’re investing $20 million to replace and upgrade ageing sewer pipes, pumps and pressure mains. And we invest each and every year.

The sewer and your bill

These sewer services make up around 45 per cent of your water bill.

Here’s the breakdown:

A healthy environment

We’re really lucky in Melbourne’s south east to have safe, clean drinking water and a healthy sewerage system too. This means wastewater is safely treated to high standards (and often recycled back to customers too) so we can enjoy healthy communities and a healthy environment.

It wasn't always this way. Discover more about the sewerage system that transformed ‘Smellbourne’ into one of the world’s most liveable cities.

You can help to keep our sewers and our city healthy. Here’s what can and can’t be flushed or sent down the drain.

A growing population

Population in our service area is expected to double by 2065. This means higher volumes of wastewater running through our water recycling plants.

We’re expecting a 60 per cent increase in the next 40 years alone.

We’re forward-thinking and already upgrading our facilities in major growth areas. And we’re on our way to running them with more renewable energy, as recycling plants are one of the most power-intensive parts of our business.

The value of wastewater

Our water recycling plants can turn wastewater into Class A recycled water. This water can be safely used to water gardens, wash cars, flush toilets, wash clothes and help farmers. It helps to save precious drinking water for drinking.

We also turn wastewater into biosolids and Class C recycled water, which we also send to local farms to help them out.

Way of the future

In new developments like Aquarevo and Fishermans Bend, we’re showcasing ‘closed loop’ water systems. This means that water used in a home is recycled in the suburb then sent back for use as Class A recycled water – again and again and again. It helps to saving drinking water for just that – drinking.