Perth metro weekly water update – 13 March 2020

13/03/2020

 

 

Target

Actual

March water use to date

13 billion litres

12 billion litres

Dam storage levels

N/A

44 per cent

Weekly streamflow into dams

N/A

44 billion litres

March rainfall to date

21.0 mm

(March average rainfall 1994-2017)

0.00 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 981 million litres per day, which was above the forecast of 964 million litres.

 

Daily water use for the last five days

Date

Actual water use (million litres)

Forecast (million litres)

13/03/2020

955

954

12/03/2020

1009

954

11/03/2020

1017

954

10/03/2020

987

954

9/03/2020

1052

977

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

 

Since 1 July 2019, we have used 214.8 billion litres of water – which is 5.5 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 43.5 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 1833 actions (warnings + fines) compared with 2560 actions for the same period in 2019.

 

Annual rainfall

 

Perth has received 37.40 mm of rainfall since 1 January 2019. The average (1994-2017) rainfall for the March period is 50.7 mm.

 

General water news

 

Looking for a waterwise specialist?

 

Our unique Waterwise Products and Services Program helps you to save water in the home and garden.

 

They can help you with landscaping, irrigation and household plumbing maintenance and installation to ensure you are using water efficiently around your home.

 

To search for a Water Corporation endorsed waterwise specialist, visit www.watercorporation.com.au/save-water/search-for-waterwise-services


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