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Your search for 'Water supply and services' returned 12 results

What is sewer mining?

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


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.


What can't go down the drain?

Putting the wrong things down toilets and sinks can cause sewer blockages and overflows – which can sometimes cause real damage and devastation to your home, as well as to our wastewater system.


Why don't you build more dams?

As we respond to the impact of climate change, we are refocusing our efforts to find a variety of sustainable solutions for the future. While dams continue to play an important role in WA’s water supply, they aren’t a secure solution when we look to the future. We’re focused on developing water sources that aren’t dependent on rainfall, such as desalination, groundwater replenishment and water recycling.


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 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.


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


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.