Think climate change. Be waterwise

Picture of one of our two desalination plants

How does your water use compare?

Are you waterwise or nearly there? Complete your household profile to see how you compare to similar households.

This is located at the top of your bill

Not recommended on shared devices

Water compare image of pipes, pool and house
Hand catching droplet of water

We're here for you

We’re committed to supporting households and businesses and providing essential services to WA.

Coronavirus support
Perth water supply map

Adapting our water supply to climate change

Ever wondered how climate change has affected our water supply?

Find out more

Monthly Streamflow


- GL

Year to date

Historical *

- GL

Avg year to date



- GL

Years of declining rainfall means less water flowing into your dams.

* Average monthly streamflow between 1911 - 1974


Latest updates


19 Oct 2020 | Update

Every drop of wastewater recycled at Margaret River facility

Margaret River Wastewater Treatment Plant services the Shire of Augusta-Margaret River. Recent upgrades have doubled the plant’s capacity to 3 million litres of wastewater per day to accommodate for rising population.

  • South West
  • Climate change
  • Wastewater
19 Oct 2020 | Update

Denmark is drying out – How this town is tackling climate change

Denmark is a town that has experienced climate change first hand. In response, the local community has saved 32 million litres of water during 2020.

  • Great Southern
  • Climate change
  • Environment
19 Oct 2020 | Media Release

New awareness campaign to inspire waterwise action at start of National Water Week

Faced with the impacts of climate change and reduced rainfall, Western Australians are being urged to rethink their water use and reminded to practice waterwise habits as part of a new awareness campaign launched today by Water Minister Dave Kelly.

  • Climate change
  • Water sources
  • Waterwise

Social stream