Maintaining our water supply

We're continually maintaining the quality of our drinking water and making improvements to provide a reliable water supply.

Two workmen kneeling on ground in front of truck inspecting a hydrant

We'll inspect 15,000 to 18,000 kilometres of water pipes in the next year.

What we're doing

We replace aged and damaged water pipes, valves, hydrants and may repair private water service pipes to improve the water supply system.

We also maintain and upgrade our water reservoirs and pumping stations.

This work reduces the risk of pipes breaking. It also helps maintain the reliability of our water supply and provide good quality drinking water.

Water asset maintenance and renewal  

  • Location - various suburbs across Sydney
  • Timeframe - ongoing

We assess the condition of our large water pipes to get information about which pipes need to be repaired or replaced before they break.

As part of our maintenance program, we also clean and refurbish our water reservoirs and replace aging electrical monitoring equipment.

Learn more about our Water Asset Maintenance and Renewals Program.  

Macarthur Water Filtration Plant upgrade

  • Location -
    Long pipe on ground and workmen behind with construction equipment

    We insert liners in old water pipes to prevent leaks.

  • Timeframe - 2019 to 2020
We're upgrading the Macarthur Water Filtration Plant (WFP). This is to ensure it continues to provide high quality drinking water to current and future residents of Camden, Campbelltown, Liverpool and in the Wollondilly regions. All the work will occur in the Macarthur WFP and at the Broughton Pass Weir. Residents living in the area may notice increased noise and truck movements during the upgrade. The upgrade is in accordance with the 2011 Australian Drinking Water Guidelines
Learn more about the Macarthur WFP upgrade.

High water pressure can lead to breaks in water pipes and cause leaks in our water system.

The aim of our Water Pressure Program is to adjust and achieve more consistent pressure levels in our water supply system. This helps to:

  • reduce the number of pipe breaks
  • improve the reliability of the water supply system
  • save water.

Water pressure management

  • Location - various suburbs across Sydney
  • Timeframe - ongoing
We're reducing water pressure in various areas across Sydney where the pressure is excessively high.

Learn more about our Water Pressure Management Program.

Water pressure monitoring

Water drops

Managing water pressure helps prevent leaks and breaks.

  • Location - various suburbs across Sydney
  • Timeframe - ongoing
We're monitoring and improving water pressure levels in various areas across Sydney. This involves replacing old pressure gauges and installing booster pumps in areas with very low or inconsistent water pressure.

Learn more about our Water Pressure Monitoring Program.

Changes in rainfall, temperature, soil type, water pressure and ground movement can cause leaks or lead to breaks in water pipes.

We use world's best practice to find hidden leaks and repair our water pipes.

This saves about 30 billion litres of water each year and helps maintain the reliability of our water supply system.

Leak detection

Man kneeling on grass holding metal equipment

We use acoustic devices to find hidden water leaks.

  • Location - various suburbs across Sydney
  • Timeframe - ongoing

We have a network of over 22,000 kilometres of water pipes. Leak detection and repair is one of the main ways we reduce water loss.

Learn more about our Leak Detection Program.

Our new approach to water conservation

To help us get value for money on our water conservation investment, we developed a new approach.

How does the method work?

When we decide whether to invest in water conservation projects, we look at the potential costs and benefits for:

  • Sydney Water
  • our customers
  • the environment.

This method adapts to changes in dam storage levels so we can make sure we're making the right investment at the right time. 

How does the method affect our Water Conservation Program?

Each year, we report to the government on how we conserve water

The Water Conservation Report outlines our plan for the next five years and how we prepared it using the new method. It also reports on costs and water savings from our program across the year.

Find out more about  Determining Sydney Water's Economic Level of Water Conservation.

Have your say about our projects

Female staff member talking to a man next to a metal fence

Your feedback is important to us.

Visit Sydney Water Talk to learn more about our projects and provide feedback.