Water storage data

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

Dam storage levels


1438.5 billion litres today


More than 21 August 2014

Avg. catchment rainfall

0 mm



Same as 21 August 2014

Flow into dams

1,900 ML



Less than 21 August 2014

Water use

1,008 ML

Melbourne today


Same as 21 August 2014

Dam storage levels

Hide details [-]

79.4% full at 22 August 2014

1,438,512 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 873,865
+747 since yesterday
81.8% 0 (verified)
View hourly unverified
Cardinia 286,911 188,016
+19 since yesterday
65.5% N/A
View hourly unverified
Upper Yarra 200,579 139,270
+331 since yesterday
69.4% 0 (verified)
View hourly unverified
Sugarloaf 96,253 93,818
0 since yesterday
97.5% N/A
View hourly unverified
Silvan 40,445 35,033
-93 since yesterday
86.6% N/A
View hourly unverified
Tarago 37,580 37,897
+18 since yesterday
100.0% N/A
View hourly unverified
Yan Yean 30,266 27,110
0 since yesterday
89.6% N/A
View hourly unverified
Greenvale 26,839 18,099
+11 since yesterday
67.4% N/A
View hourly unverified
Maroondah 22,179 22,239
-20 since yesterday
100.0% 0 (verified)
View hourly unverified
O'Shannassy 3,123 3,165
-5 since yesterday
100.0% 0 (verified)
View hourly unverified
Total 1,812,175 1,438,512
+1,008 since yesterday
79.4% N/A

Download this data (.CSV)

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

Show details [+]
Catchment 24 hours to 8am Today (mm) Daily average for August Month to date (mm) August average (mm) Based on mean from previous 30 years
Thomson 0.0 3.5 76.8 107.0
Upper Yarra 0.0 4.0 58.0 123.0
Maroondah 0.0 3.5 53.4 107.0
O'Shannassy 0.0 5.3 77.4 164.0

Download this data (.CSV)


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

Show details [+]
Catchment 24 hours to 8am today (ML) Daily average for August Month to date (ML) August average (ML) Based on mean from previous 30 years
Thomson 814 1,104.2 23,722 34,231
Upper Yarra 527 765.3 17,109 23,724
Maroondah 201 354.0 7,064 10,974
O'Shannassy 358 445.8 10,364 13,820
Total 1,900 58,259 82,749

Download this data (.CSV)


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

Water use for Melbourne

Show details [+]
Melbourne's total daily water use 24 hours to 8am today (ML) Daily average (ML)
5 year average for Aug
Businesses & households 1,008 944

Download this data (.CSV)

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.
Copyright Melbourne Water