Silvan Reservoir

Silvan Reservoir is the heart of the water transfer system, supplying water to most parts of Melbourne’s metropolitan area.  


Aerial views of Silvan Reservoir
Aerial views of Silvan Reservoir

Introducing Silvan Reservoir

Silvan's dam was completed in 1932. It is an earthfill embankment with reinforced concrete core wall.

Silvan receives 'inflows' from the Thomson, Upper Yarra and O’Shannassy reservoirs and other small tributaries to the Yarra River.

Cardinia and Greenvale reservoirs are supplied by the Silvan system.

These sources are supplied to Melbourne’s water retailers unfiltered because of the high quality of water drawn from the protected catchments and large storages.

For more information about Silvan's location, check out this Google Map.


Aerial shots of Silvan Reservoir

Aerial shots of Silvan Reservoir

Long shot of Silvan Reservoir


Silvan Water Treatment Plant

Silvan Water Treatment Plant is operated and maintained safely by Melbourne Water under a Major Hazard Facility licence from WorkSafe Victoria, where water is disinfected to destroy residual micro-organisms.

Further information can be obtained by contacting your local library (Eastern Regional Libraries, Yarra Plenty Regional Library) or Melbourne Water directly.


Water storage and rainfall figures for Silvan Reservoir

View current water storage levels and catchment rainfall data for Silvan Reservoir on our most visited page, Water Storage and Use.

Don't forget, if you'd prefer to have water data on your phone or tablet, download our app available for iPhone and Android. Just search for 'Melbourne's Water Storages' for easy access to this data.


Key rainfall facts (mm)

Here are the wettest, driest and average stats per month, for Silvan:

​Month Wettest​ ​Driest ​Average
January​ 221.2 (1963)​ 3.8 (1990)​ 63.4
February​ 258.8 (1939)​ 0.0 (1956)​ 66.1
March​ 244.3 (1931)​ 2.3 (1951)​ 66.8​
April​ 330.2 (1935)​ 0.0 (1923)​ 99.1
May​ 327.7 (1944)​ 8.4 (1934)​ 115.2
June​ 259.8 (1952)​ 21.1 (1972)​ 108.8
July​ 299.5 (1952)​ 32.0 (2001)​ 115.3
August​ 302.5 (1939)​ 30.8 (1982)​ 122.8
September​ 302.5 (1957)​ 31.5 (1961)​ 115.4​
October​ 277.6 (1934)​ ​24.1 (1938) 117.3
November​ 223.8 (1954)​ 10.7 (1927​ 101.4
December​ 318.8 (1934)​ 4.6 (1972)​ 90.5
Total rainfall​ 1786.9 (1952)​ 724.3 (1997)​ 1182.0


Historical rainfall data (1921-2019)

Looking for historical data? Check out rainfall at Silvan Reservoir - at this stage available to 2019.

graph showing Silvan Reservoir rainfall data



Last updated:
19 November 2020