Reservoir at Grenada South
The Council:
- buys water from the Greater Wellington Regional Council
- maintains the reticulation network that supplies water to homes and businesses in the city
- performs regular maintenance, upgrades and renewal programmes.
The reticulation network includes:
- 81 reservoirs and tanks
- 1,020 km of pipes
- 33 pumping stations
- more than 100,000 fittings, valves and controls.
On average, our water pipes have a life of 70 years.
Water for Wellington, Porirua and most of the Hutt Valley comes from the headwaters of the Hutt River at Kaitoke and from the catchment east of Wainuiomata.
Facts & Figures
As at 2009, the total water supplied to Wellington city was about 30 million cubic metres (30 billion litres) per year. The Council intends to stabilise total consumption at this level.
Commercial Usage
About seven million cubic metres is used for commercial / industrial purposes. Most commercial water usage is metered.
Non-commercial Usage
Wellington's estimated non-commercial water consumption is typically about 350 litres per person per day. This figure is based on total water supplied, less the metered commercial use, divided by resident population. Because this figure can be affected by changes in resident and Council activities, it is used when measuring water usage trends as part of managing water demand.
The non-commercial consumption estimate takes into account leaks on private properties. Non-commercial use includes:
- domestic
- leakage from both public and private pipes
- flushing of hydrants
- water used for fire-fighting
- watering of Council parks and gardens
- street cleaning
- burst mains and reservoir overflows
- water that is removed without permission from hydrants, ie theft of water.
Seasonal Changes
Water consumption figures are dynamic and include water used in toilet flushes, baths and showers, washing machines and dishwashers. Actual consumption varies depending on a number of factors such as the weather - for example, consumption usually increases in a dry summer as residents water their gardens.
Wellington Water Restrictions
Wellington has year-round restrictions on sprinklers and garden hoses. Use is only allowed 6.00am - 8.00am and 7.00pm - 9.00pm on alternate days. If you have an even-numbered address, you can use sprinklers on even days of the month and vice versa. A hand-held hose or watering can may be used at any time.
Water Conservation Tips
Drinking Water Precautions
The Ministry of Health recommends you flush a cup of water from your drinking water taps each morning.
The softness of New Zealand water is associated with leaching of metals such as lead from plumbing fittings. Flushing your taps helps to remove these metals.
Although the health risk is small, all households should follow this simple precaution.
The Wellington Water Charter
The Wellington Water Charter came into effect in 2007. The document outlines the mutual responsibilities of the Council, in regards to the supply of water, and water users.
Wellington Water Charter (229Kb PDF) | Text version (455Kb Doc)
Related Links
Department Details:
Capacity (Wellington Water Management Ltd)
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