Our water sources

Where does our water come from?

Perth’s water sources have changed over time due to climate change. We’re getting less rain, which means less water flowing into our dams. Over the past decade we’ve introduced new climate independent sources - seawater desalination and groundwater replenishment.

In 2017/18 the Integrated Water Supply Scheme produced 312 billion litres of water for our customers, made up of:

desalination
48% Desalination
groundwater
40% Groundwater
surface water
10% Surface water
groundwater replenishment
2% Groundwater
replenishment

Find out more about our water sources

 

Groundwater

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Groundwater

Our plans to invest in a new expanded deep groundwater network.

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Desalination

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Desalination

Find out about desalination and why it will remain a cornerstone of Perth’s water supply.

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Securing Perth's water supply

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Securing Perth's water supply

We have a long term plan in place to secure our water future for generations to come.

Securing Perth's water supply

Groundwater replenishment

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Groundwater replenishment

Find out what groundwater replenishment is and its vital role in Perth’s water supply.

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Recycled water

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Recycled water

Our water recycling targets and how we're increasing the amount of water we recycle.

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Dams

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Dams

The changing role Perth's dams will play in our water supply into the future

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