Melbourne Water
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| Agency overview | |
|---|---|
| Formed | 1992 |
| Jurisdiction | Government of Victoria |
| Headquarters | Melbourne, Victoria, Australia |
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| Website | www.melbournewater.com.au |
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Melbourne Water is an Australian statutory authority owned by the Victorian State Government, which controls and manages much of the water bodies and supplies in metropolitan Melbourne, the capital of Victoria. Its jurisdiction includes all the reservoirs, lakes, wetlands, canals and urban creeks, and the sewerage and drainage 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.[1]
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 region. Governance of Melbourne Water is by an independent Board of Directors in conjunction with the Minister for Water.
Melbourne Water supplies water to the metropolitan retail water businesses (namely, Greater Western Water, South East Water and Yarra Valley Water[2]), other water authorities, local councils and the land development industry.[3] The Victorian Water Industry Association (VicWater) is the peak industry association for water companies in Victoria.
In 1994, Melbourne Parks and Waterways was separated from Melbourne Water, and became part of Parks Victoria in 1996.
Victorian Desalination Plant
The Victorian Desalination Plant is a A$3.1 billion desalination plant that was built in the Wonthaggi region of the Bass Coast.[4] The plant can provide an additional 150 gigalitres of water each year.[5][6] The base fee payable to the owner of the plant, even if no water is ordered, is $608 million a year,[7] or $1.8 million per day, for 27 years. being between $18 and $19 billion in total.[8] 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.[8]
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
Script error: No such module "Labelled list hatnote". Melbourne Water has a system of restrictions to manage water supplies into the future. It reports on storage levels on Thursday each week[9] 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.[10]
| Reservoir | Capacity (ML) | Year completed | Location |
|---|---|---|---|
| Thomson | Script error: No such module "Number table sorting". | 1983 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Sugarloaf | Script error: No such module "Number table sorting". | 1981 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Cardinia | Script error: No such module "Number table sorting". | 1973 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Greenvale | Script error: No such module "Number table sorting". | 1971 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Tarago | Script error: No such module "Number table sorting". | 1969 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Upper Yarra | Script error: No such module "Number table sorting". | 1957 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Silvan | Script error: No such module "Number table sorting". | 1932 | Lua error: callParserFunction: function "#coordinates" was not found. |
| O'Shannassy | Script error: No such module "Number table sorting". | 1928 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Maroondah | Script error: No such module "Number table sorting". | 1927 | Lua error: callParserFunction: function "#coordinates" was not found. |
| Yan Yean | Script error: No such module "Number table sorting". | 1857 | Lua error: callParserFunction: function "#coordinates" was not found. |
Water supply catchments
Around 80% of Melbourne's water is sourced from uninhabited forests 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. Catchment areas have been closed to the public for over 100 years .[11][12][13]
| Catchment | Area (ha) | Inflow (%) | Comment |
|---|---|---|---|
| Thomson | 48700 | 35.3 | mainly State Forest and a small section within Baw Baw National Park |
| Upper Yarra | 33670 | 18.7 | within the Yarra Ranges National Park |
| O'Shannassy | 11870 | 11.4 | within the Yarra Ranges National Park |
| Maroondah | 16540 | 10.8 | within the Yarra Ranges National Park |
| Sugarloaf | 0 | 10.7 | water is pumped from the Yarra River and fully treated |
| Yarra Tributaries | 13480 | 3.8 | Armstrong, Cement, McMahons and Starvation Creeks (State Forest) |
| Wallaby | 9100 | 1.9 | within the Kinglake National Park |
| Total | 92.6 |
In addition to the reservoirs in the table above, water is harvested via a number of diversion weirs: Template:PoI start Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI Template:PoI end
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[14][15][16] 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.[17]
See also
- Water management in Victoria
- Lakes and Reservoirs in Melbourne
- List of reservoirs and dams in Australia
- Western Treatment Plant
- Eastern Treatment Plant
- National Council for Fire & Emergency Services
External links
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- Melbourne Water
- Yarra Valley Water
- South East Water
- City West Water
- Victorian Water Industry Association (VicWater)
References
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- ^ Melbourne Water : About Us : Who We Are : Who We Are
- ^ Melbourne Water : About Us : Our Customers : Our Customers
- ^ Melbourne Water about us
- ^ Page Module:Citation/CS1/styles.css has no content.Rood, David (4 February 2008). "In the eye of the storm". The Age. Melbourne.
- ^ Page Module:Citation/CS1/styles.css has no content."Melbourne Water : Current Projects : Water Supply : Seawater Desalination Plant : Seawater Desalination Plant". Archived from the original on 20 July 2008. Retrieved 19 January 2008.
- ^ Page Module:Citation/CS1/styles.css has no content."Microsoft Word – 132863.doc" (PDF). Archived from the original (PDF) on 9 April 2008. Retrieved 19 January 2008.
- ^ Page Module:Citation/CS1/styles.css has no content."Subscribe to the Herald Sun". www.heraldsun.com.au. Retrieved 15 September 2016.
- ^ a b Page Module:Citation/CS1/styles.css has no content."Victorians pay dearly, but not a drop to drink". ABC News. 18 December 2012. Retrieved 2 January 2013.
- ^ Page Module:Citation/CS1/styles.css has no content."Melbourne Water : Water : Weekly Water Update : Weekly Water Update". www.melbournewater.com.au. Archived from the original on 24 September 2005.
- ^ Melbourne Water : Water : Water Storages : Water Storages
- ^ Page Module:Citation/CS1/styles.css has no content."Water Catchments". Melbourne Water. Retrieved 22 November 2011.
- ^ Page Module:Citation/CS1/styles.css has no content.Department of Primary Industries. "Water Supply Catchment Protection". dpi.vic.gov.au. Retrieved 30 September 2011.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Dudley, Nigel; Stolton, Sue; Asante-Owusu, Rachel (2003), Running pure: the importance of forest protected areas to drinking water (PDF), World Bank/WWF Alliance for Forest Conservation and Sustainable Use, pp. 74–77, ISBN 978-2-88085-262-7, retrieved 22 November 2011
- ^ Page Module:Citation/CS1/styles.css has no content.Feikema, Paul; Lane, Patrick; Peel, Murray; Sherwin, Chris; Freebairn, Andrew; Salkin, Owen (October 2006), Hydrological studies into the impact of timber harvesting on water yield in state forests supplying water to Melbourne – Part 1 of Hydrological studies, eWater Cooperative Research Centre Part 1a Script error: No such module "webarchive". Part 1b Script error: No such module "webarchive".
- ^ Page Module:Citation/CS1/styles.css has no content.Logging rainforest within the Melbourne's domestic water supply catchments, Victorian Rainforest Network
- ^ Page Module:Citation/CS1/styles.css has no content.National water week demonstrations expose logging in Melbourne's water supply, The Wilderness Society
- ^ Page Module:Citation/CS1/styles.css has no content."Untitled Document". Archived from the original on 20 August 2006. Retrieved 5 January 2007.
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