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Where your water comes from
About 80% of Sydney's drinking water comes from Warragamba Dam. The rest is supplied by other dams, rivers and the ocean.
Learn about our water delivery systems
Our water delivery systems are flexible, and many are interconnected. This means we can divert water between systems to meet demand in different areas, or shut down areas for maintenance or repairs.
We supply water from 11 major dams through 13 water delivery systems, with:
- 22,963 kilometres of drinking water mains owned and operated
- 253 reservoirs
- 153 drinking water pumping stations
- 9 water filtration plants (4 of these are privately owned and operated)
- Sydney Desalination Plant (privately owned and operated).
Find out how water is delivered to your property.
Check your water quality
Your water is filtered at one of the 9 drinking water filtration plants or the 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.
Check the status of the desalination plant
The Sydney Desalination Plant can supply water to up to 1.5 million people across Sydney. It's privately owned and operated, and becomes part of our water delivery systems during drought. Find out more about desalination.
See current dam storage levels
We work in partnership with WaterNSW, which supplies much of the untreated raw water from rivers and dams. Visit WaterNSW to find out the total dam water storage across Greater Sydney.