Melbourne Water is a Victorian government owned statutory authority that controls much of the water system in Melbourne, Victoria, Australia, including the reservoirs, and the sewerage and drainage system that services the city.
|Jurisdiction||Government of Victoria|
|Headquarters||Melbourne, Victoria, Australia|
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.
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.
Melbourne Water supplies water to the metropolitan retail water businesses (namely, City West Water, South East Water and Yarra Valley Water), 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.
Victorian Desalination PlantEdit
The Victorian Desalination Plant is a A$3.1 billion desalination 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 ProjectEdit
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.
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.
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.
Melbourne Water manages the ten Melbourne reservoirs. The total storage capacity is 1,810,500 megalitres.
|Reservoir||Capacity (ML)||Year completed||Location|
Water supply catchmentsEdit
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 .
|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|
In addition to the reservoirs in the table above, water is harvested via a number of diversion weirs:
(links to map & photo sources)
|Silver Creek Weir||To Toorourrong Reservoir|
|Wallaby Creek Weir||To Toorourrong Reservoir|
|Donnelly Weir||)||To Maroondah Aqueduct|
|Sawpit Creek Weir||To Maroondah Aqueduct|
|Grace Burn Creek Weir||To Maroondah Reservoir|
|Badger Creek Weir||To Silvan Reservoir|
|Armstrong Creek Weir||)||To Silvan Reservoir|
|Armstrong Creek East Branch Weir||)||To Silvan Reservoir|
|Cement Creek Weir||)||To Silvan Reservoir|
|McMahons Creek Weir||)||To Silvan Reservoir|
|Starvation Creek Weir||)||To Silvan Reservoir|
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 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.
- Melbourne Water : About Us : Who We Are : Who We Are
- Melbourne Water : About Us : Our Customers : Our Customers
- Melbourne Water about us
- Rood, David (4 February 2008). "In the eye of the storm". The Age. Melbourne.
- Melbourne Water : Current Projects : Water Supply : Seawater Desalination Plant : Seawater Desalination Plant
- Microsoft Word - 132863.doc
- "Subscribe to the Herald Sun". www.heraldsun.com.au. Retrieved 15 September 2016.
- "Victorians pay dearly, but not a drop to drink". ABC News. 18 December 2012. Retrieved 2 January 2013.
- Melbourne Water : Water : Water Storages : Water Storages
- "Water Catchments". Melbourne Water. Retrieved 22 November 2011.
- Department of Primary Industries. "Water Supply Catchment Protection". dpi.vic.gov.au. Retrieved 30 September 2011.
- 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
- 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 CentrePart 1a Archived 2011-03-27 at the Wayback Machine Part 1b Archived 2011-03-27 at the Wayback Machine
- Logging rainforest within the Melbourne's domestic water supply catchments, Victorian Rainforest Network
- National water week demonstrations expose logging in Melbourne's water supply, The Wilderness Society
- "Archived copy". Archived from the original on 20 August 2006. Retrieved 5 January 2007.CS1 maint: archived copy as title (link)