Perth metro weekly water update – 3 April 2020

3/04/2020

 

 

Target

Actual

April water use to date

3 billion litres

3 billion litres

Dam storage levels

N/A

43 per cent

Weekly streamflow into dams

N/A

44 billion litres

April rainfall to date

37.2 mm

(April average rainfall 1994-2017)

0 mm

Note: 1 billion litres = approx. 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 893 million litres per day, which was above the forecast of 889 million litres.

 

Daily water use for the last five days

Date

Actual water use (million litres)

Forecast (million litres)

3/04/2020

873

877

2/04/2020

895

877

1/04/2020

905

877

31/03/2020

856

877

30/03/2020

944

903

29/03/2020

878

903

Note: water use is calculated up to 8am each day for the previous 24 hour period

 

Since 1 July 2019, we have used 233.3 billion litres of water – which is 4.9 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 42.7 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. There were no warnings or fines this week.

 

Annual rainfall

 

Perth has received 68.8 mm of rainfall since 1 January 2020. The average (1994-2017) rainfall for the April period is 87.9 mm.

 

General water news

 

Please remember that flushing anything other than the 3Ps - pee, poo and (toilet) paper - may result in a blockage.

 

Items such as wet wipes, paper kitchen towel and sanitary products should be disposed of in a bin, as such material does not break down in wastewater pipes.

If the blockage or overflow is on your property, you are responsible for any repair costs.

 

For more information, please see our tips on what not to flush.


Media Enquiries:

Contact: Media team

Phone: (08) 9420 2555