What we do

At Sydney Water, our role and responsibility is broad. From the health of the city and its people, to managing the environment and the health of our waterways to help ensure the overall liveability of our great city.

Our value lies far beyond water supply, pipes and wastewater services. Water is not just a commodity – water gives life to nature, and is the defining force of Greater Sydney and the Illawarra.

Water is key to our cultural identity. We have a love affair with our harbour, beaches, rivers and waterways. The waterways encapsulate the spirit, the beauty and the life of our community.


Our services

We supply water, wastewater, recycled water and some stormwater services to more than five million people in Greater Sydney and the Illawarra.

Our Operating Licence sets out standards and requirements we must meet as a water utility. The licence also includes our Customer Contract.

Every day, we supply about 1.5 billion litres of water to our customers.

We source water from a network of dams managed by WaterNSW.

Most of our water supply comes from Warragamba Dam. When dam levels fall below 75%, we can transfer water from the Shoalhaven catchment when certain conditions are satisfied.

Sydney Desalination Plant at Kurnell can provide up to 15% of greater Sydney's drinking water needs when dam levels fall below 60%, as outlined in the Metropolitan Water Plan. 

Dam water is treated at one of nine water filtration plants. We then supply it to you through a network of:

  • 22,474 kilometres of water pipes
  • 248 reservoirs
  • 152 drinking water pumping stations.

Find out more about our water network and how water we supply high quality water to your property.

Water recycling reduces demand on water supplies. This leaves more water in our dams for drinking. It also reduces the amount of wastewater we need to treat.

Each day, we recycle about 128 million litres of water. We take wastewater that has been used in homes and businesses, and put it through a multi-step treatment process to remove impurities so it can be safely used again for its intended use.

Recycled water is a valuable resource that can be used:

  • in homes and businesses for watering gardens and flushing toilets
  • in industry
  • to irrigate parks, farms and playing fields
  • for river health.

Find out more about our recycled water network.

We collect and treat about 1.5 billion litres of wastewater each day. This is through a network of:

  • 26,350 kilometres of wastewater pipes
  • 693 wastewater pumping stations
  • 14 water recycling plants
  • 16 wastewater treatment plants.

After collecting and treating wastewater, we re-use it or release it into rivers or the ocean.

Inland plants treat wastewater to a high level so it can be released into rivers.

Three of our treatment plants are wet weather plants - Fairfield, Bellambi and Port Kembla. We only use these plants during major storms.

The biosolids we produce and capture in the treatment process are used in agriculture, composting or land rehabilitation.

Find out more about our wastewater network.

Stormwater is rainwater that runs from roofs, roads and parks into stormwater drains. It then runs into creeks, the harbour and the ocean.

We provide stormwater services to about 627,300 properties through 456 kilometres of stormwater channels and pipes. These are mainly in south and south-west Sydney.

We also manage flood-prone areas and trunk drainage at Rouse Hill.

In other parts of Sydney, the Blue Mountains and the Illawarra, we work with local councils and agencies to manage the stormwater system.

Find out more about our stormwater network.

Our strategy

We have an ambitious vision from which we've designed our strategy: Creating a better life with world-class water services.

Water is an essential part of daily life. It’s the way we use water that helps our city thrive and supports the productivity and prosperity of our economy. By delivering world-class water services, we can create a better life for our people, our business partners and our communities.

World-class water services for safe, clean drinking water, tree-lined streets, parks and green spaces, and access to safe, local waterways and beaches for recreation and fun. To achieve this, we're focusing on four strategic outcomes.

Our strategic outcomes

We deliver a world-class customer experience and collaborate with our current and future customers, communities, stakeholders and partners to deliver better outcomes .
We deliver on results focusing on safety, inclusion, innovation and accountability.
We deliver world-class products and services to our city and are champions for the environment, public health and resilience.
We are socially responsible and sustain a positive return for our shareholders and the community.
Read One strategy to deliver our vision to find out more.