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

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 is sewer mining?

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


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.


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.


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.