Melbourne Water is a

Victorian Government The Victoria State Government, also referred to as just the Victorian Government, is the state-level authority for Victoria, Australia. Like all state governments, it is formed by three independent branches: the executive, the judicial, and t ...

-owned

statutory authority A statutory body or statutory authority is a body set up by law (statute) that is authorised to implement certain legislation on behalf of the relevant country or state, sometimes by being empowered or delegated to set rules (for example re ...

that controls and manages much of the

water bodies A body of water or waterbody (often spelled water body) is any significant accumulation of water on the surface of Earth or another planet. The term most often refers to oceans, seas, and lakes, but it includes smaller pools of water such as ...

and supplies in metropolitan

Melbourne Melbourne ( ; Boonwurrung/ Woiwurrung: ''Narrm'' or ''Naarm'') is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in both Australia and Oceania. Its name generally refers to a metro ...

Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...

Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...

, including the

reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contr ...

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (Anoxic waters, anoxic) processes prevailing, especially in t ...

canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface f ...

s and urban creeks, and the

sewerage Sewerage (or sewage system) is the infrastructure that conveys sewage or surface runoff (stormwater, meltwater, rainwater) using sewers. It encompasses components such as receiving drainage, drains, manholes, pumping stations, storm overflows, a ...

and

drainage Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess of water. The internal drainage of most agricultural soils is good enough to prevent severe waterlogging (anaerobic condition ...

systems that services the city. Melbourne Water was formed by the merger of Melbourne and Metropolitan Board of Works and a number of smaller urban water authorities in 1992. Melbourne Water primarily operates under the ''Water Industry Act 1994'' and the ''Water Act 1989''.

Overview

Melbourne Water is wholly owned by the Victorian State Government. It manages Melbourne's water supply catchments, sewage, rivers and major drainage systems throughout the Port Phillip and

Westernport Western Port, (Boonwurrung: ''Warn Marin'') commonly but unofficially known as Western Port Bay, is a large tidal bay in southern Victoria, Australia, opening into Bass Strait. It is the second largest bay in the state. Geographically, it is ...

region. Governance of Melbourne Water is by an independent

Board of Directors A board of directors (commonly referred simply as the board) is an executive committee that jointly supervises the activities of an organization, which can be either a for-profit or a nonprofit organization such as a business, nonprofit orga ...

in conjunction with the Minister for Water. Melbourne Water supplies water to the metropolitan retail water businesses (namely,

City West Water City West Water Corporation was a Government of Victoria retail water corporation that provided drinking water, sewerage, trade waste and recycled water services in the Melbourne central business district, inner and western suburbs. The service ...

, South East Water and

Yarra Valley Water Yarra Valley Water is the largest of three Victorian Government owned retail water corporations that provides drinking water and sewerage services to over two million people and over 58,000 businesses in the northern and eastern suburbs of Melb ...

), other water authorities, local councils and the land development industry. The Victorian Water Industry Association (VicWater) is the peak industry association for water companies in Victoria. In 1994,

Melbourne Parks and Waterways Melbourne ( ; Boonwurrung/Woiwurrung: ''Narrm'' or ''Naarm'') is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in both Australia and Oceania. Its name generally refers to a metr ...

was separated from Melbourne Water, and became part of

Parks Victoria Parks Victoria is a government agency of the state of Victoria, Australia. Parks Victoria was established in December 1996 as a statutory authority, reporting to the Victorian Minister for Environment and Climate Change. The ''Parks Victoria A ...

in 1996.

Victorian Desalination Plant

The

Victorian Desalination Plant The Victorian Desalination Plant (also referred to as the Victorian Desalination Project or Wonthaggi desalination plant) is a water desalination plant in Dalyston, on the Bass Coast in southern Victoria, Australia. The project was announced ...

is a A$3.1 billion

desalination Desalination is a process that takes away mineral components from saline water. More generally, desalination refers to the removal of salts and minerals from a target substance, as in soil desalination, which is an issue for agriculture. Salt ...

plant that was built in the Wonthaggi region of the Bass Coast. The plant can provide an additional 150 gigalitres of water each year. The base fee payable to the owner of the plant, even if no water is ordered, is $608 million a year, or $1.8 million per day, for 27 years. being between $18 and $19 billion in total. On 1 April each year, the Minister for Water places an order for the following financial year, up to 150 gigalitres a year, at an additional cost to Melbourne Water and consumers.

Northern Sewerage Project

Northern Sewerage Project is a major infrastructure project to increase the capacity of the sewerage system in Melbourne's growing northern suburbs. It will also help protect the Merri and Moonee Ponds Creeks by virtually eliminating sewage overflows that can occur after heavy rain.

Water restrictions

Melbourne Water has a system of restrictions to manage water supplies into the future. It reports on storage levels on Thursday each week while an interactive graph compares actual use. Further reviews of restrictions were needed to counter an ongoing drought, poor rainfall, record low storage levels and rising water use compared with past years.

Infrastructure

The water supply system operated and managed by Melbourne Water comprises: * catchments covering more than 140,000 hectares. * ten major storage reservoirs with a capacity of 1,810,500 megalitres. * 64 service reservoirs that provide short-term storage. * about 1300 kilometres of distribution mains and aqueducts. * 18 water pumping stations, used to pump water from low-lying areas to higher areas. * five water filtration plants. * 49 water treatment (disinfection) plants.

Water storages

Melbourne Water manages the ten Melbourne reservoirs. The total storage capacity is 1,810,500 megalitres.

Water supply catchments

Around 80% of Melbourne's water is sourced from uninhabited

forests A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

in the Yarra Ranges and Central Highlands. In excess of 1,570 square kilometres is reserved for water catchment. These forests primarily consist of

Mountain Ash Mountain ash may refer to: * '' Eucalyptus regnans'', the tallest of all flowering plants, native to Australia * Mountain-ashes or rowan The rowans ( or ) or mountain-ashes are shrubs or trees in the genus ''Sorbus'' of the rose family, Rosa ...

. Catchment areas have been closed to the public for over 100 years . In addition to the reservoirs in the table above, water is harvested via a number of diversion weirs: Clearfell logging is permitted in the Yarra Tributaries and Thomson catchment areas. Some studies claims this reduces Melbourne's water supply arguing that young regrowth forest uses more water than existing forest
Part 1aPart 1b
Some environmental groups claim that up to 30 thousand megalitres of water could be saved per annum by phasing out logging. This represents 6% of Melbourne's annual usage.

External links

Melbourne WaterYarra Valley WaterSouth East WaterCity West WaterVictorian Water Industry Association (VicWater)

References

{{Authority control Organisations based in Melbourne Water companies of Victoria (Australia) 1992 establishments in Australia Government agencies established in 1992