Weekly water update

Data for week ending 01 December 2016
Last update at 5:00 PM 01 December 2016

Dam storage levels


1315.5 billion litres this week


Less than week ending 24 November 2016

Avg. catchment rainfall

1.2 mm

This week


Less than week ending 24 November 2016

Flow into dams

8,267 ML

This week


Less than week ending 24 November 2016

Water use

150 L

Daily avg. per person this week


Less than week ending 24 November 2016

No increase in storages after below average rainfall

Melbourne's water storages remained steady at 72.6% of capacity this week.

The four major catchments received between 0.8 to 3.4 mm of rain, the average being 1.2 mm. This was 93.5% below the long-term average for the period of 18.5 mm.

The 8.3 billion litres of stream flow was 1.3% below the 30-year average for the period (8.4 billion litres).
Water storages are now 72.6% (1,315.5 billion litres) full, compared with 71.4% (1,294.6 billion litres) at the same time last year.

This represents a difference of 20.9 billion litres.

Melburnians used an average of 150 litres of water per person per day.

This is 18 litres less than the previous week.

Permanent water use rules are currently in place and Target 155 has been launched to encourage Melburnians to reduce water consumption.

Information on Target 155 is available on the Department of Environment, Land, Water and Planning’s website or by contacting your local water retailer.


Dam storage levels

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72.6% full at 01 December 2016

1,315,462 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 742,658
+2,186 since last week
69.5% 0.8 (verified)
View hourly unverified
Cardinia 286,911 185,087
+1,058 since last week
64.5% N/A
View hourly unverified
Upper Yarra 200,579 142,881
-1,820 since last week
71.2% 0.8 (verified)
View hourly unverified
Sugarloaf 96,253 94,775
-304 since last week
98.5% N/A
View hourly unverified
Silvan 40,445 33,991
-1,104 since last week
84.0% N/A
View hourly unverified
Tarago 37,580 37,627
-179 since last week
100.0% N/A
View hourly unverified
Yan Yean 30,266 28,046
-42 since last week
92.7% N/A
View hourly unverified
Greenvale 26,839 25,555
-15 since last week
95.2% N/A
View hourly unverified
Maroondah 22,179 22,049
-150 since last week
99.4% 3.4 (verified)
View hourly unverified
O'Shannassy 3,123 2,793
-230 since last week
89.4% 2.2 (verified)
View hourly unverified
Total 1,812,175 1,315,462
-600 since last week
72.6% 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.


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 0.8 18.8 -95.7% 8.0mm
Upper Yarra 0.8 17.7 -95.5% 7.8mm
O'Shannassy 2.2 19.6 -88.8% 13.0mm
Maroondah 3.4 18.3 -81.4% 5.8mm

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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 3,519 3,300 6.6% 880
Upper Yarra 1,767 1,950 -9.4% 124
O'Shannassy 1,559 1,700 -8.3% 631
Maroondah 1,422 1,430 -0.6% 644
Total 8,267 8,380 1.3% 2,279

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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 150 168

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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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