Weekly water update

Data for week ending 23 October 2014
Last update at 11:00 AM 24 October 2014

Dam storage levels

79.8%

1446.6 billion litres this week

-0.3%

Less than week ending 16 October 2014

Avg. catchment rainfall

4.6 mm

This week

-15.8mm

Less than week ending 16 October 2014

Flow into dams

6,801 ML

This week

-1725ML

Less than week ending 16 October 2014

Water use

178 L

Daily avg. per person this week

15L

More than week ending 16 October 2014

Water storages shed 0.3%

Melbourne’s water storages have decreased by 0.3% of capacity in the past week.

The 4.5-billion litre decline came on the back of a dry week at the catchments.

The four major catchments received between 3.6 and 6.2 mm of rain, the average being 4.6 mm. This was 81.7% below the long-term average for the period (25.1 mm).

The 6.8 billion litres of stream flow into reservoirs was 52.7% below the long-term average for the period (14.4 billion litres).

The weekly decline also included the release of 3 billion litres as environmental flows in the Yarra River.

Water storages are now 79.8% (1,446.6 billion litres) full, compared with 79.7% (1,444.3 billion litres) at the same time last year – a difference of 2.3 billion litres.

Melburnians used an average of 178 litres of water per person per day in the past week. This is 15 litres a day more than the previous week.

Permanent water use rules are currently in place. Visit water.vic.gov.au for information on water use rules and tips on how to save water.

The Victorian Government is helping everyone choose the right water for the job.

Using alternative water sources, such as rainwater from our roofs, reduces our reliance on drinking water supplies. Visit rightwater.vic.gov.au for more information.

Dam storage levels

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79.8% full at 23 October 2014

1,446,553 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 898,966
-835 since last week
84.2% 5.2 (verified)
View hourly unverified
Cardinia 286,911 185,002
-1,774 since last week
64.5% N/A
View hourly unverified
Upper Yarra 200,579 130,681
-738 since last week
65.2% 3.6 (verified)
View hourly unverified
Sugarloaf 96,253 92,470
-565 since last week
96.1% N/A
View hourly unverified
Silvan 40,445 35,343
+465 since last week
87.4% N/A
View hourly unverified
Tarago 37,580 37,799
-72 since last week
100.0% N/A
View hourly unverified
Yan Yean 30,266 27,734
-26 since last week
91.6% N/A
View hourly unverified
Greenvale 26,839 17,720
-187 since last week
66.0% N/A
View hourly unverified
Maroondah 22,179 18,608
-928 since last week
83.9% 6.2 (verified)
View hourly unverified
O'Shannassy 3,123 2,230
+141 since last week
71.4% 3.6 (verified)
View hourly unverified
Total 1,812,175 1,446,553
-4,519 since last week
79.8% N/A

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Dam storage levels includes all of Melbourne's water storage areas that receive water from catchments and the desalination plant.

Storages

Monthly average storage levels of Melbourne's reservoirs over the years. Data is updated at the end of each month. View our interactive storage graph, displaying data from 1940 - present.

Rainfall at dams

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Catchment This week (mm) This week's long term average (ML) based on mean from previous 30 years Variation
(to the average)
Same time last year
Thomson 5.2 25.0 -79.4% 27.6mm
Upper Yarra 3.6 24.0 -84.7% 21.6mm
O'Shannassy 3.6 29.0 -87.6% 33.4mm
Maroondah 6.2 25.0 -75.1% 27.6mm

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Rainfall data is a weighted average catchment figure that is validated and provided for four major catchments only.

Flow into dams

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Catchment This week (ML) This week's long term average (ML) based on mean from previous 30 years Variation
(to the average)
Same time last year (ML)
Thomson 2,670 6,150 -56.6% 4,218
Upper Yarra 1,458 3,710 -60.7% 2,804
O'Shannassy 1,333 2,560 -47.9% 2,128
Maroondah 1,340 1,960 -31.6% 1,574
Total 6,801 14,380 52.7% 10,724

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Flow into dams is a total of water flowing from our four major catchments into reservoirs.

Water use for Melbourne

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Daily water use This week's daily average (L) Last week's daily average (L)
Per Person Water Use 178 163

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Water use shows Melbourne's total usage each day and includes Western Water. The total amount used by all Melbournians -both business and households.

All figures include non-metropolitan supply for Western Water (supplied since March 2000), which are not included in annual Melbourne metropolitan consumption figures.

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