Water network

Every day, we supply over 1.5 billion litres of drinking water to over five 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 the drinking 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 who supply 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.


What makes up 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:

  • 22,342 kilometres of pipes
  • 249 reservoirs
  • 150 pumping stations
  • 9 water filtration plants (four of these are privately-owned and operated)
  • Sydney Desalination Plant (privately-owned and operated).

How much water do we supply?

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