Our projects in Sydney's south-west

River with rock ledges and trees on sides

Residents are now connecting to new wastewater services in the Wollondilly area.

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

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 Renewal Programs.

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

  • 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.

Leak detection

  • 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.

Macarthur Water Filtration Plant upgrade

  • Location - Appin
  • Timeframe - Completed October 2020

We've upgraded the Macarthur Water Filtration Plant (WFP). This ensures the plant will continue to provide high quality drinking water to current and future residents in the Camden, Campbelltown, Liverpool and Wollondilly regions. 
Learn more about the Macarthur Water Filtration Plant upgrade.


We're always upgrading and repairing our existing wastewater system. Our wastewater projects help protect public health and the environment.

Network Repairs Program

  • Location - various suburbs across Sydney
  • Timeframe - ongoing

We're repairing cracked, collapsed or damaged wastewater pipes and maintenance holes across our system. About 7,500 jobs were completed in 2019-20 to improve the wastewater system and ensure it remains reliable.

Learn more about our Network Repairs Program.

Sewer and Stormwater Rehabilitation Program

  • Location - various suburbs across Sydney
  • Timeframe - this work is underway and will continue to 2021

We're upgrading our wastewater and stormwater pipes across Sydney. This work will help prevent leaks in pipes for the next 50 years.

Learn more about our Sewer and Stormwater Rehabilitation program.

Internal Surcharge Improvement Program

  • Location - various suburbs across Sydney. Key locations include Banksia, Baulkham Hills, Beverly Hills, Castle Hill, Concord, Drummoyne, Ermington, Fairfield East, Freshwater, Kogarah, Mosman, Putney, Quakers Hill, Seven Hills, West Pennant Hills, West Ryde, Wollongong and Woronora
  • Timeframe - this work is underway and will continue until 2021 

We're currently in the planning or construction stage for a number of projects that will help fix wastewater surcharges at private properties.

Learn more about our Internal Surcharge Improvement Program.

Picton Water Recycling Plant

  • Location - Picton
  • Timeframe - we're developing a strategy to expand the Picton Wastewater Scheme to service new connections and growth in the area by 2025

To service new connections and growth in the area, we're upgrading Picton Water Recycling Plant.

Learn more about the Picton Wastewater Scheme and Water Recycling Plant.

Most of the stormwater pipes and channels in the Sydney metropolitan area are the responsibility of local councils. We own some of the large stormwater pipes, channels and drains.

We work closely with local councils and other agencies to manage Sydney’s stormwater flows.

Silt and debris management

  • Location - various suburbs across Sydney
  • Timeframe - 2010 to mid 2023

We're removing silt, sand and sediment from our wastewater and stormwater pipes as well as open channels, rivers and creeks.

Learn more about our Silt and Debris Management Program.

Our wastewater and water recycling plants treat wastewater to a high level so it can be safely re-used.

We provide recycled water for homes and businesses, industry, parks, farms, golf courses and playing fields and for river health. This helps save drinking water and secures our water supply for Sydney’s growing population.

Hoxton Park Recycled Water Scheme

  • Location - Bardia,Edmondson Park, Elizabeth Hills, Freemans Ridge, Ingleburn Gardens, Len Water Industrial Estate, Middleton Grange, Panorama Estate, Park Bridge Estate and Yarrunga Industrial Estate
  • Timeframe - we plan to start operating this scheme when there are enough properties built and connected to our wastewater and recycled water pipes
We'll be providing high quality recycled water to parts of new residential suburbs and industrial areas in Sydney's south-west.

Customers in the Hoxton Park Recycled Water Scheme are expected to be supplied with recycled water from 2022-23.

Learn more about the Hoxton Park Recycled Water Scheme.

We're planning and building new water and wastewater infrastructure to enable development in the growth areas. This infrastructure is essential to allow development as outlined in the NSW Government’s A Plan For Growing Sydney.

The Department of Planning and Environment is responsible for rezoning land and the sequence of land release in priority growth areas. They work in consultation with relevant local councils, NSW Government agencies and developers.

Learn more about the South West.

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.