Weekly water update

Data for week ending 13 October 2016
Last update at 10:00 AM 14 October 2016

Dam storage levels


1267.8 billion litres this week


More than week ending 06 October 2016

Avg. catchment rainfall

16.6 mm

This week


Less than week ending 06 October 2016

Flow into dams

24,770 ML

This week


Less than week ending 06 October 2016

Water use

131 L

Daily avg. per person this week


More than week ending 06 October 2016

Good streamflow sees slight storage gain

Melbourne’s storage levels increased by 0.8% of capacity this week.

This represents a net gain of 14.4 billion litres.

The four major catchments received between 11.8 and 23.8 mm of rain, the average being 16.6 mm.

This is 33.1% below the long-term average for the period of 24.8 mm.
The 24.8 billion litres of stream flow was 63.8% above the 30-year average for the period (15.1 billion litres).

Water storages are now 70.0% (1,267.8 billion litres) full, compared with 74.1% (1,342.3 billion litres) at the same time last year, a difference of 74.5 billion litres.

Melburnians used an average of 131 litres of water per person per day.

This is 5 litres more 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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70.0% full at 13 October 2016

1,267,770 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 705,735
+9,598 since last week
66.1% 14.4 (verified)
View hourly unverified
Cardinia 286,911 179,765
-2,128 since last week
62.7% N/A
View hourly unverified
Upper Yarra 200,579 136,026
+6,546 since last week
67.8% 18.6 (verified)
View hourly unverified
Sugarloaf 96,253 93,557
-435 since last week
97.2% N/A
View hourly unverified
Silvan 40,445 36,469
+909 since last week
90.2% N/A
View hourly unverified
Tarago 37,580 37,745
-115 since last week
100.0% N/A
View hourly unverified
Yan Yean 30,266 27,240
+192 since last week
90.0% N/A
View hourly unverified
Greenvale 26,839 25,570
-168 since last week
95.3% N/A
View hourly unverified
Maroondah 22,179 22,460
+40 since last week
100.0% 11.8 (verified)
View hourly unverified
O'Shannassy 3,123 3,203
-32 since last week
100.0% 23.8 (verified)
View hourly unverified
Total 1,812,175 1,267,770
+14,407 since last week
70.0% 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 14.4 23.1 -37.7% 17.2mm
Upper Yarra 18.6 24.6 -24.4% 24.6mm
O'Shannassy 23.8 32.1 -25.9% 21.8mm
Maroondah 11.8 25.1 -53.0% 24.0mm

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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 10,021 6,340 58.1% 3,290
Upper Yarra 7,819 3,940 98.5% 2,278
O'Shannassy 4,493 2,750 63.4% 1,587
Maroondah 2,437 2,090 16.6% 1,465
Total 24,770 15,120 63.8% 8,620

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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 131 126

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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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