Water network

Every day, we supply over 1.5 billion litres of drinking water to over 5.3 million people in both their homes and businesses. About 80% of it comes from Warragamba Dam. The rest comes from a mix of other dams, the Hawkesbury Nepean River and Sydney Desalination Plant at Kurnell.
  • Water safe

    Your water is safe to drink
    Your water is filtered at one of the nine drinking water filtration plants or Sydney Desalination Plant to meet the Australian Drinking Water Guidelines.

    Find out more about water quality in your area in our daily drinking water quality report.

  • Water level

    Greater Sydney's total dam storage
    We work in partnership with WaterNSW, which supplies much of the raw water from rivers and dams.

    To see how much water is in the dams, visit WaterNSW.

  • Sydney Desalination Plant is in operation

  • Sydney Desalination Plant supplies water to up to 1.5 million people. It is privately-owned and operated. It becomes part of our water network during drought. Find out more about desalination.


Our water network

Our water network is flexible and many of our water delivery systems are interconnected. We supply water from 11 major dams through 13 water delivery systems with:

  • 22,474 kilometres of pipes
  • 248 reservoirs
  • 152 pumping stations
  • 9 water filtration plants (four of these are privately-owned and operated)
  • Sydney Desalination Plant (privately-owned and operated).
How we maintain our network
Our crews work around the clock to make sure our water delivery systems are in top shape - from fixing leaks and breaks, to managing water pressure or upgrading our major facilities.

Learn more about how we're  maintaining our water supply

Water supply update

Read our weekly water supply report to find out how much drinking water we supplied last week.

Explore our water network

Select a water delivery system to see how water gets to each area:

or     find out how water is delivered to your property
Sydney Water Delivery Network