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Your search for 'Water supply and services' returned 13 results

Why isn't it compulsory for all new homes to have rainwater tanks?

We support customers who choose to install a rainwater tank but don't believe that this cost should be introduced to all new homeowners.


What happens to the salt from seawater during desalination - is it harming the environment?

Our desalination plants meet stringent environmental protection criteria and are designed to have minimal impact on the surrounding environment.

We have 2 plants, both located near the open ocean. Due to the high energy swell, the concentrated seawater discharged during the process mixes very quickly with the surrounding seawater. The offshore discharge and intake pipelines are designed and located to minimise any effects on sensitive marine habitats, such as seagrasses and reef systems.

Learn more about our desalination plants.


What is the Gnangara Groundwater System?

The Gnangara Groundwater System is the largest groundwater source in WA.


Doesn't desalination use a lot of energy?

Yes, desalination does use more energy than sourcing water using traditional methods such as gravity feeding water out of a dam.

However, the energy used to provide enough desalinated water for the daily use for a family of 4 is the same amount of energy needed to run an air conditioner for just 1 hr. 


Why don't you collect stormwater?

Perth is characterised by predominantly sandy soils, which enable a lot of the stormwater to infiltrate into the ground.


Why don't you build the Kimberley pipeline or canal?

Reduced rainfall and the impact of climate change across the south west of WA has created sustained interest in the idea of sourcing water from the Kimberley region.

An independent expert panel formed in 2004 evaluated the technical and financial viability of bringing water from the Kimberley to Perth and found that the project was high risk, high cost and impractical. As a result, transporting water from the Kimberley is not currently being considered as a viable option for Perth.

The review found transporting water from the Kimberley to be energy intensive. As well as this, rainfalls in the north of WA are highly variable and are expected to continue to be in the future, so there is no certainty of the supply from the region. The social, cultural, environmental and economic costs are significantly higher than other sources, such as desalination

Our more affordable and efficient solutions to secure water supply include increasing recycling, replenishing groundwater stores with highly treated recycled water, desalination and transferring groundwater abstraction to deeper aquifers to protect the groundwater environment.

For more information see Options for Bringing Water to Perth from the Kimberley - An Independent Review


What is the Integrated Water Supply Scheme?

The Integrated Water Supply Scheme (IWSS) is the system that delivers 312 billion litres of water each year to over 2 million people in Perth, the Goldfields and Agricultural region and some parts of the South West.


What is sewer mining?

Sewer mining is the process of extracting, treating and using wastewater before it reaches a wastewater treatment plant.


Is cloud seeding a viable solution to Perth's water supply?

Cloud seeding relies on a number of factors before it can be considered a cost-effective water supply solution.


What are you doing to help business and industry use less water and recycle more water?

Reducing the amount of scheme water used by business and industry remains vital.