Water storage data

Data for 2 October 2014
Last update at 1:00 PM 02 October 2014

Dam storage levels


1458.6 billion litres today


Same as 01 October 2014

Avg. catchment rainfall

2.2 mm



Less than 01 October 2014

Flow into dams

1,376 ML



Less than 01 October 2014

Water use

1,035 ML

Melbourne today


More than 01 October 2014

Dam storage levels

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80.5% full at 2 October 2014

1,458,637 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 894,707
+497 since yesterday
83.8% 1.6 (verified)
View hourly unverified
Cardinia 286,911 187,062
+171 since yesterday
65.2% N/A
View hourly unverified
Upper Yarra 200,579 138,068
-338 since yesterday
68.8% 3.4 (verified)
View hourly unverified
Sugarloaf 96,253 94,296
0 since yesterday
98.0% N/A
View hourly unverified
Silvan 40,445 36,057
+63 since yesterday
89.2% N/A
View hourly unverified
Tarago 37,580 37,879
+19 since yesterday
100.0% N/A
View hourly unverified
Yan Yean 30,266 27,682
0 since yesterday
91.5% N/A
View hourly unverified
Greenvale 26,839 18,116
+14 since yesterday
67.5% N/A
View hourly unverified
Maroondah 22,179 22,139
0 since yesterday
99.8% 1.2 (verified)
View hourly unverified
O'Shannassy 3,123 2,631
-12 since yesterday
84.2% 2.2 (verified)
View hourly unverified
Total 1,812,175 1,458,637
+414 since yesterday
80.5% 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 October Month to date (mm) October average (mm) Based on mean from previous 30 years
Thomson 1.6 3.3 19.8 101.0
Upper Yarra 3.4 3.2 15.6 100.0
Maroondah 1.2 3.3 7.4 102.0
O'Shannassy 2.2 4.1 11.6 127.0

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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 October Month to date (ML) October average (ML) Based on mean from previous 30 years
Thomson 575 925.5 1,161 28,689
Upper Yarra 380 573.3 793 17,771
Maroondah 211 297.9 445 9,235
O'Shannassy 210 389.0 428 12,058
Total 1,376 2,827 67,753

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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 Oct
Businesses & households 1,035 981

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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.

Help ensure we always have plenty of fresh water to drink and choose the right water for the job.







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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