Greater Sydney storage trigger

Greater Sydney storage trigger

On 27 January 2019, total storage levels in Greater Sydney reached 59.9%.

As part of the NSW Government’s 2017 Metropolitan Water Plan, when total storage levels fall below 60% the Sydney Desalination Plant (SDP) is notified to enter start-up mode. Desalinated water will help meet customer demands as the drought intensifies. Sydney’s water supply is otherwise entirely dependent on rainfall.

Unlike many regional catchments facing drought, Sydney has at least two years of water supply remaining – even with zero inflows. Sydney typically receives annual rainfall exceeding 1200mm.

WaterNSW will continue to provide regular updates on storage levels.

2017 Metropolitan Water Plan portfolio of measures

Below shows the trigger points for activities.

Image: Metropolitan Water

For questions on SDP please contact their head office:

Phone 1800 129 630


Media Enquiries

For questions related to Sydney Water please contact via:

Phone 13 20 92 or via their website.


Tuesday 25 June
1,349,194 ML
2,581,850 ML
9,317 ML
1,331 ML
-7,278 ML
Tuesday 25 June