Metro weekly water update
| Target | Actual | |
|---|---|---|
| January water use to date | 33 billion litres | 32 billion litres |
| Dam storage levels | NA | 46% |
| Weekly streamflow into dams | NA | 44 billion litres |
| January rainfall to date | 16.7mm (Jan average rainfall 1994-2017) | 3.0mm |
| 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 1044 million litres per day, which was below the forecast of 1,050 million litres.
Daily water use for the last 5 days
| Date | Actual water use (million litres) | Forecast water use (million litres) |
|---|---|---|
| 31/01/2020 | 957 | 1048 |
| 30/01/2020 | 1023 | 1048 |
| 29/01/2020 | 1053 | 1048 |
| 28/01/2020 | 1145 | 1048 |
| 27/12/2020 | 1058 | 1051 |
| Note, water use is calculated up to 8am each day for the previous 24 hour period. | ||
Since 1 July 2019, we have used 172.7 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 45.9 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 863 actions (warnings + fines) compared with 875 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 January period is 16.7 mm.
General water news
Tomorrow marks the start of February and the Noongar second summer. In aboriginal weather knowledge this is the hottest part of the year with little to no rain.
If you're interested in learning more about the Noongar seasons, the Bureau of Meteorology has some useful information online Noongar calendar
It’s a great reminder that we still have plenty of hot days ahead of us, and while we realise it’s not always easy to make water savings at this time of year when gardens are extra thirsty, we can still be waterwise.
For advice on how to make the most of the water you use in the garden in summer visit our website.
Contact: Clare Lugar
Position: Manager Media and Strategic Communications
Phone: (08) 9420 2555