Perth: Key findings
For the water account period 1 July 2017–30 June 2018
- Annual rainfall exceeded the average for the first time in six years.
- The wetter conditions contributed to increases in aquifer and surface water storage.
- Desalination and groundwater continued to underpin urban water supply.
Climate and water
Water use
Water supplied

776,225 ML
urban system
37%
irrigation scheme
9%
individual users
54%
Water status
Allocations
856,471 ML
total surface water and groundwater allocations
Water assets
299,648 ML
increase in net water assets during the year
Outlook
Increase
in water storage predicted during 2018–19