Metro weekly water update
| Target | Actual | |
|---|---|---|
| January water use to date | 25 billion litres | 24 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) | 1.8mm |
| 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 987 million litres per day, which was above the forecast of 1,051 million litres.
Daily water use for the last 5 days
| Date | Actual water use (million litres) | Forecast water use (million litres) |
|---|---|---|
| 24/01/2020 | 1008 | 1051 |
| 23/01/2020 | 954 | 1051 |
| 22/01/2020 | 959 | 1051 |
| 21/01/2020 | 988 | 1051 |
| 20/12/2020 | 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 165 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 46.2 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 641 actions (warnings + fines) compared with 722 actions for the same period in 2019.
Annual rainfall
Perth has received 1.80 mm of rainfall since 1 January 2019. The average (1994-2017) rainfall for the January period is 16.7 mm.
General water news
The Bureau of Meteorology has forecast temperatures higher than 30 degrees every day for the long weekend in Perth, which means many residents will be spending time in their pools. Did you know that without a pool cover, it's possible to lose more than your pool's entire volume of water every year through evaporation?
Using a pool cover between swims not only keeps your pool warmer and cleaner it also reduces the amount of water lost to evaporation.
When choosing a pool cover look for the Waterwise and Smart Approved WaterMark symbols to ensure you are getting the best quality products.
Contact: Clare Lugar
Position: Manager Media and Strategic Communications
Phone: (08) 9420 2555