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Melbourne Water

Melbourne's water
storages
are currently

26.1%

The area surrounding the Yarra River and Port Phillip Bay that is now Melbourne was originally inhabited by the Wurundjeri people.

These indigenous Australians had no need for complicated water supply systems. Instead, they relied on local rivers and creeks or dug shallow wells to tap supplies of underground water.

The first European settlers who arrived in Melbourne in 1803 also drew water from local creeks. However as their settlements grew, demand for a reliable water supply system began to grow.

Brief history of Melbourne’s water supply system

1803 The first attempt at settlement of the Port Phillip region was on the Mornington Peninsula when Colonel David Collins established a camp at Sullivan's Bay, near Sorrento. The only source of water for almost 400 convicts, marines and free settlers was six wooden barrels sunk in the sand to tap groundwater.
1835 Although settlement of the Port Phillip area had gradually grown after Colonel Collins arrived in Sorrento in 1803, it was not until 1835 that John Batman officially claimed the establishment of Melbourne.
1840 5 years after its official beginning, Melbourne’s population had already reached 7,000. Water pumps were installed on the northern bank of the Yarra River. Men with water carts sold water, door to door, for three shillings a barrel, equal to about 30 cents for 550 litres.
1850s Due to the Victorian gold rush of the 1850s, Melbourne’s population rapidly increased and Melbourne was transformed into a major city. At the same time many new industries and buildings were being developed. These factors all meant that systems needed to be created to supply water to Melbourne.
1853 The Board of Commissionaires of Sewers and Water Supply was formed in response to the demand for a reliable water supply system.
1857 Yan Yean Reservoir, Melbourne’s first water supply reservoir, was completed and began to supply water to Melbourne, which by now had a population of 100,000.
1891 The Melbourne and Metropolitan Board of Works (MMBW) was formed and became responsible for Melbourne’s water supply. Melbourne had grown to a city of half a million people. To provide water to this rapidly growing city, especially the eastern suburbs, the Watts River (near Healesville) was tapped. It supplied water to Melbourne, via the Maroondah aqueduct.
1910 By 1910, there were 123,227 connections to Melbourne’s water supply system.
1920s In response to growing complaints about water quality and lack of water pressure in Melbourne's eastern suburbs, a large-scale dam construction program began. Maroondah Reservoir, about 55 kilometres northeast of Melbourne, was completed in 1927. The completion of Maroondah Reservoir, O'Shannassy Reservoir in 1928 and Silvan Reservoir in 1932 saw Melbourne's storages boosted from a capacity of 30,000 million litres to 104,500 million litres.
1940 A very dry summer in 1937/38 resulted in water restrictions being imposed in Melbourne. The Melbourne and Metropolitan Board of Works also started planning for the building of a new dam to expand Melbourne's water supplies.
1946 After delays caused by World War II and another two summers of water restrictions in 1945 and 1946, construction began on the Upper Yarra Reservoir and a major scheme of pipelines and tunnels to bring more water to Melbourne.
1950 Rapid population growth after World War II in Melbourne meant that new supplies of water were urgently required.
1957 The Upper Yarra Reservoir was completed, tripling Melbourne’s total water storage to nearly 300,000 million litres.
1960s Many parts of the water supply system were replaced / renewed.
1966 Plans for the construction of the Cardinia and Thomson Reservoirs were accepted by the Victorian Government.
1967 Following the severe drought of 1967/68, the building of Cardinia Reservoir commenced. Work also commenced on diverting part of the flow of the Thomson River in Gippsland into the Upper Yarra River catchment.
1971 To meet growing demand in the western suburbs, particularly during summer, a reservoir with a capacity of 27,000 million litres was completed at Greenvale.
1973 Construction of Cardinia Reservoir was completed. As part of a new Victorian Government policy that fluoride should be added to all public water supplies, construction began on local fluoridation plants.
1975 Yarra Valley Conduit and Silvan-Cardinia main were built to improve capacity to transfer water between the Upper Yarra and Silvan reservoirs, and to allow water from the Thomson River to be transferred to Cardinia Reservoir.
1981 The Sugarloaf Reservoir Project, including a major pumping station and water treatment plant was completed, increasing Melbourne's total storage capacity by 95,000 million litres.
1983 The final stage of the Thomson project concluded in May with an extension of the Thomson-Yarra Tunnel and completion of the dam wall. The Thomson is the largest capacity reservoir ever built by the Melbourne and Metropolitan Board of Works.
1984 The 'Don't be a Wally with Water' advertising campaign was launched aimed at changing people's attitudes to wasting water. Dual flush toilets became compulsory for all new toilet installations.
1991 The Melbourne and Metropolitan Board of Works merged with a number of smaller urban water authorities to form Melbourne Water.
1994 The Victorian Government announced that Melbourne Water was going to be divided into three retail water companies and a wholesale water company.
2007 The Victorian Government announces their Water Plan to secure Melbourne’s water supply into the future. Planning is underway to divert water from the Goulburn River to the Sugarloaf Reservoir, construct a seawater desalination plant in Wonthaggi, upgrade the Eastern Treatment Plant for increased output of recycled water for non-drinking use, and reconnect the Tarago Reservoir to Melbourne’s water supply network.
Thomson Reservoir Upper Yarra Reservoir O'Shannassy Reservoir Maroondah Reservoir Sugarloaf Reservoir Silvan Reservoir Cardinia Reservoir Yan Yean Reservoir Greenvale Reservoir