Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


The Tap's Back on for Water Storage Lake

NEWS RELEASE

28 September 2012

The Tap's Back on for Water Storage Lake

The turn of a tap last Friday signalled the start of filling for Greater Wellington's newly-strengthened and enlarged southern water storage lake at Te Marua, which has been empty since September last year.

Lake filling began with a modest 450 litres (about three baths' full) per second, but will increase to as much as 800 litres per second once the water levels are high enough to stop incoming water disturbing the lake's bed. The filling should take up to seven weeks, resulting in two million cubic metres of water - roughly twice the volume of the Westpac Stadium - in the lake by November.

"The good news is that the southern lake is now not only stronger in an earthquake, it's also gone from 16 to 17 metres deep, providing 240 million litres more stored water once it's filled," says Cr Nigel Wilson, Chair of Greater Wellington's Social and Cultural Wellbeing Committee.

"However, we'll still have an empty lake this summer, only it'll be the northern lake. We'll start the summer with only half the usual lake water in reserve for the region's cities, so we'll be asking people to save a bit more water again this summer to make sure there's enough to go around if we have long spells of warm, dry weather."

Draining of the northern lake is likely to begin in November. Upgrading work will take place over summer and autumn, and is expected to be finished by December 2013.

The two Te Marua lakes provide a backup water source for Upper Hutt, Lower Hutt, Porirua and Wellington when river levels are low.

See www.gw.govt.nz/water for more information about the lakes upgrade and easy ways to conserve water this summer.


Q&As

WHAT'S GREATER WELLINGTON'S ROLE IN SUPPLYING WATER?
Greater Wellington supplies treated bulk water to the Upper Hutt, Lower Hutt, Porirua and Wellington city councils. Most of this water comes from the Hutt, Wainuiomata and Orongorongo rivers, and an aquifer. In summer, water from the Te Marua storage lakes makes up for any shortages from these sources.

WHY ARE YOU UPGRADING THE TE MARUA LAKES?
The earthquake strengthening work is needed to meet national dam safety guidelines. The capacity increase of the two lakes combined will give us another 400 million litres of stored water - this amount could be enough to maintain water supply for up to two weeks longer in a drought.

WHAT ARE YOU DOING TO UPGRADE THE LAKES?
Greater Wellington is upgrading the Te Marua lakes by installing a tough, flexible plastic liner to prevent leaks following a major earthquake, and raising the outer walls to increase the lakes' combined storage capacity by 13%. This work has been completed for the southern lake and will begin in a few months for the northern lake.

WHY ARE YOU DOING THIS WORK OVER SUMMER?
Most of the upgrading work requires a dry lake bed and dry conditions, which are most likely during summer.

WHERE DOES THE WATER FOR FILLING THE SOUTHERN LAKE COME FROM?
The southern lake will be refilled from the Hutt River at the Kaitoke Weir, north of Upper Hutt.

WILL YOU BE USING THE REVISED KAITOKE WEIR CONSENT TO GET ENOUGH WATER?
In August 2011, Greater Wellington was granted consent to reduce the allowable minimum water flow in the Hutt River at Kaitoke Weir for up to three years if needed while our stored water reserves are halved due to the upgrade. However, our aim is to avoid using the revised consent for refilling unless high demand and a dry spell require it. The weather outlook is for normal rainfall levels over the next two months.

ends

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

Gordon Campbell: On What John Key Should Be Asking Joe Biden

No doubt, US Vice-President Joe Biden will be updating Prime Minister John Key on the chances of a TPP vote taking place in the ‘ lame duck’ session of Congress that’s held between the November’s election and the inauguration of a new President in January. More>>

ALSO:

Make NZ Make Again: Greens Will Establish A Minister For Manufacturing

The Green Party announced today that it will establish a Minister for Manufacturing in Cabinet, to better represent the interests of manufacturers and ensure they thrive. The Minister will be inside Cabinet and have responsibility for the long-term interests of the manufacturing sector. More>>

ALSO:

Cannabis Party: Treasury Figures On Cost Of Criminalisation

Figures released by Treasury prove the economic viability of The Cannabis Party's policy, while destroying the credibility of police claims about cannabis harms. More>>

ALSO:

Green Party: Investigation Into Mental Health Facilities Shows Disarray

The Health Minister must urgently launch an inquiry into mental health services, after serious issues with the standard of care at mental health and disability facilities around the country were revealed today, the Green Party said. More>>

ALSO:

Apparently He Means 'Years 0-8': Seymour Announces 4th Partnership Schools Application Round

“The continuing growth of this policy reflects the achievement of the eight existing Partnership Schools, and the strong levels of interest educators and community leaders are showing in the Partnership Schools model and what it offers students and their families,” Mr Seymour says. More>>

ALSO:

Trust Directors: Urban Māori Win Case Against Te Ohu Kai Moana

The National Urban Māori Authority (NUMA) and Te Waipareira Trust have succeeded in their claim over a $20 million trust set up for the benefit of urban Māori, meaning all directors of the trust must represent Māori who are not affiliated with an iwi. More>>

New Model: Carbon Tax Could Lower Emissions And Boost Economy

A carbon tax targeting emissions-intensive industries, along with a revamped Emissions Trading Scheme (ETS), could boost economic growth, with the extra tax generated used to cut GST from 15 percent to 12.5 percent. More>>

ALSO:

Budget Docs Release: ACC Sought $158mn In Budget 2016, Got $26.4mn

The Accident Compensation Commission requested an extra $158 million in funding for 2016/17 from the government ahead of Budget 2016, but Treasury instead recommended an interim payment of just $26.4 million be funded to tackle demographic changes, papers published by the government show. More>>

ALSO:

Submissions Sought: Māori Party Joins Opposition Housing Inquiry

People who are homeless, those who were once homeless, those working with the homeless and concerned New Zealanders are being asked to share their experiences and solutions to this growing issue with the Cross-Party Homelessness Inquiry. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news