Water storage data

Data for 22 November 2014
Last update at 12:00 PM 22 November 2014

Dam storage levels


1429.2 billion litres today


Same as 21 November 2014

Avg. catchment rainfall

0 mm



Less than 21 November 2014

Flow into dams

519 ML



More than 21 November 2014

Water use

1,093 ML

Melbourne today


Less than 21 November 2014

Dam storage levels

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78.9% full at 22 November 2014

1,429,216 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 871,016
-982 since yesterday
81.6% 0 (verified)
View hourly unverified
Cardinia 286,911 184,265
+245 since yesterday
64.2% N/A
View hourly unverified
Upper Yarra 200,579 145,090
+323 since yesterday
72.3% 0 (verified)
View hourly unverified
Sugarloaf 96,253 91,567
0 since yesterday
95.1% N/A
View hourly unverified
Silvan 40,445 34,203
0 since yesterday
84.6% N/A
View hourly unverified
Tarago 37,580 37,771
-35 since yesterday
100.0% N/A
View hourly unverified
Yan Yean 30,266 27,594
-36 since yesterday
91.2% N/A
View hourly unverified
Greenvale 26,839 17,642
-14 since yesterday
65.7% N/A
View hourly unverified
Maroondah 22,179 17,790
-54 since yesterday
80.2% 0 (verified)
View hourly unverified
O'Shannassy 3,123 2,278
+2 since yesterday
72.9% 0 (verified)
View hourly unverified
Total 1,812,175 1,429,216
-551 since yesterday
78.9% N/A

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Dam storage

Dam storage levels includes all of Melbourne's water storage areas that receive water from catchments and the desalination plant. Melbourne’s water storage levels are expressed as a percentage of the combined capacity of all storage reservoirs. This is more accurate than looking at individual reservoirs because of their vast differences in storage capacity.

Volumes are measured over a 24 hour period to 8am each day and are validated at the end of each week.


Storages over the years graph 

Monthly average storage levels of Melbourne's reservoirs over the years.  
View our interactive storage graph, displaying data from 1940 - present.

Rainfall at dams

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Catchment 24 hours to 8am Today (mm) Daily average for November Month to date (mm) November average (mm) Based on mean from previous 30 years
Thomson 0.0 3.5 57.6 104.0
Upper Yarra 0.0 3.1 55.4 92.0
Maroondah 0.0 3.4 51.8 103.0
O'Shannassy 0.0 3.4 53.4 102.0

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Rainfall data is a weighted average figure provided for four major catchments only. This rainfall data has been verified - for more frequent unverified data, visit our rainfall and river level section.

Rainfall provided for the four major catchments only.

Flow into dams

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Catchment 24 hours to 8am today (ML) Daily average for November Month to date (ML) November average (ML) Based on mean from previous 30 years
Thomson 207 651.6 7,366 19,547
Upper Yarra 61 413.8 2,356 12,415
Maroondah 117 246.9 3,557 7,408
O'Shannassy 134 293.3 3,504 8,799
Total 519 16,783 48,169

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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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Melbourne's total daily water use 24 hours to 8am today (ML) Daily average (ML)
5 year average for Nov
Businesses & households 1,093 1,042

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Water use

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







While all due skill and attention has been taken in collecting, validating and providing data, Melbourne Water Corporation shall not be liable in any way for loss of any kind including damages, costs, interest, loss of profits or special loss or damage, arising from any error, inaccuracy, incompleteness or other defect in this information.
In utilising this information the recipient acknowledges that Melbourne Water Corporation makes no representations as to the accuracy or completeness of this information and the recipient should therefore carry out their own investigations if appropriate.
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