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Hi!!!!!!!!!!!!!!!! My name is Avin Lau and this is my cornerstone assessment piece 5 “ Natures Balance”. To start with, let us see how water is recycled at different stages. . Melbourne’s water comes from.

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My name is Avin Lau and this is my cornerstone assessment piece 5 “ Natures Balance”.

melbourne s water comes from
Melbourne’s water comes from

Around 80% of our drinking water comes from closed water catchments in the Yarra Ranges. 157,000 hectares of forest has been closed to the public for over 100 years. These native forests filter rainwater as it flows across land into creeks, rivers and our reservoir storages.

history of melbourne s water supply
History of Melbourne's Water Supply

The indigenous Australians relied on local rivers and creeks or dug shallow wells to tap supplies of underground water.

The first European settlers who arrived in Melbourne in 1803 also drew water from local creeks. However as their settlements grew, demand for a reliable water supply system began to grow.

  • Current water supply map
  • Historical water supply map

Melbourne people have done a great job of saving water since the introduction of water restrictions.

It’s still possible for us all to save more.

Australia has one of the highest per capita water consumption rates in the world. While two thirds of all the people on Earth use less than 60 litres of water a day, the average Australian uses more than twice that amount during a single shower. In fact, Australians are among the biggest users of water in the world, especially around the home.


Melbourne’s storage levels continued to improve over the month, and by the end of July, storages were 1.7% higher than levels at the end of June, finishing the month at 35.5%capacity. 

Although total rainfall remains below average, reasonable rainfall towards the end of the month has kept catchments wet, which should help facilitate further inflows during the normally wetter winter/spring months.


Melbourne’s Water Consumption Rates

Melbourne’s water consumption and progress on achieving Target 155 is estimated weekly and reported every Friday. This is calculated by:

  • Totalling the week’s water use in Melbourne
  • Subtracting water used for purposes other than household use.*
  • Dividing by Melbourne’s population
  • Dividing by 7 days
  • This provides an estimate of whether Melbourne has hit the target for the week.
  • *Business use changes seasonally in Melbourne as a result of a range of social and production factors. The amount subtracted will incorporate an assessment of these factors.

Melbourne’s water storages are now at their highest level since 2006 after increasing from 32.7 per cent to 41.3  per cent over winter - an increase of 156.6 billion litres.

how to save water
How to save water!!!

We can save water in many different ways, but to understand how these ways help save our environment, we must understand that all things can be linked together.


  • Wash your clothes at a full load
  • Have a rain water tank in your house
  • Have its own water meter in your house
  • Spend less time in the shower
  • Use dishwater to water your plants or flush your toilet

As a result of ongoing drought, climate change and record low water storage levels, Target 155 was launched by the Minister for Water, Tim Holding on 24 November 2008.

Target 155 aims to encourage Melbourne people to limit their personal water consumption to under 155 litres per person per day and is in place along with Stage 2 water restrictions.


Households use the majority of Melbourne’s water

  • More than half of the water from our reservoirs - about 60 per cent - is used by residential users, families at home.
  • About 30% used in industry - factories, businesses,

schools and councils.

  • Around 10 per cent is called ‘non revenue’ water. This includes leaks, water used by fire-fighters, stolen or is unaccounted for as a result of meter inaccuracies.

Per person average water use for Melbourne (litres per day select years)

  • 20% of water used at home is in the garden.
  • 30% is used in the shower.
  • 50% is used for washing clothes, flushing the toilet,

using the dishwasher, having baths and other

general tap use.


There are not many people using grey water to flush their toilet.

  • There are many people wash their clothes at a full load.
  • There are many people take long for shower.
domestic water wastage
Domestic water wastage
  • Water leakage from the tap
  • Water the garden every day.
  • Wash the car every day.
  • Take a shower more than ten minutes
  • Wash your clothes at a half load
  • Don’t use dishwater to water flush your toilet

Some people like to save water according to government’s water policies like “Target 155” and “Stage 2 Restrictions”.

  • More than half people got a rainwater tank in their house.
  • More than half people have their own water meter in their house.
  • More than half people don’t a swimming pool in their house.
the water resources policy for the greater melbourne region 2050
The Water Resources Policy For The Greater Melbourne Region 2050

I think in the future the Government should build more reservoir, teach child to save water.


the end
The End!!!!!!!!!!!!!!!!!!!!!!!!!

Thank you for watching my cornerstone assessment piece. I hope you enjoy and know more about Melbourne’s water.

Have a good day. Goodbye!!!!!!