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Table showing target and actual water use, dam levels, streamflow and rainfall
  Target Actual
February water use to date 22 billion litres 22 billion litres
Dam storage levels NA 45%
Weekly streamflow into dams NA 44 billion litres
February rainfall to date 13.0mm (Feb average rainfall 1994-2017) 0.00mm
Note: 1 billion litres = approximately 400 Olympic swimming pools. Please note the figures in this table are rounded (except for rainfall) to the nearest whole number.

Water use

Average water use over the past week was 1073 million litres per day, which was above the forecast of 1,022 million litres.

Daily water use for the last 5 days

Table showing daily water use for the last 5 days
Date Actual water use (million litres) Forecast water use (million litres)
21/02/2020 1133 1015
20/02/2020 1101 1015
19/03/2020 1072 1015
18/02/2020 1042 1015
17/02/2020 1072 1029
Note, water use is calculated up to 8am each day for the previous 24 hour period.

Since 1 July 2019, we have used 195 billion litres of water – which is around 6 billion litres over the forecast for this period

Dam level (total for 15 dams)

The dam storage levels have dropped slightly this week and are sitting at a combined 44.4 per cent* of full capacity.

*Please note some dams are filled from different sources - dam levels include the transfer of groundwater and desalinated seawater from treatment plants as well as streamflow (that comes from rainfall). As we use many different sources of water, dams are no longer an accurate indicator of the health of Perth's overall water supply situation.

Streamflow (total for 15 dams)

From 1 May 2019 the dams have received 44.1 billion litres of streamflow. The post-1975 average for the May to April period (called the streamflow year) is 183.9 billion litres.

Sprinkler roster compliance

The two-day a week sprinkler roster now applies. Since 1 January 2020, we have taken a total of 1441 actions (warnings + fines) compared with 1978 actions for the same period in 2019.

Annual rainfall

Perth has received 3.00 mm of rainfall since 1 January 2019. The average (1994-2017) rainfall for the February period is 13 mm.

General water news

Are you interested in how you can make changes around your home to make it more sustainable? The first step is to understand your water use; followed by identifying where in your home you can make the most savings.

Media Enquiries:

Contact: Clare Lugar

Position: Manager Media and Strategic Communications

Phone: (08) 9420 2555