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

 

PARLIAMENT TODAY:

  • Week in Parliament 22-05-15
  • Saturday Sitting
  • House Rises At Midnight
  • Telco Levy Bill Passes
  • Telco Levy Bill Completes First Reading
  • Social Housing Bill Passes Under Urgency

  • TPPA: University Of Auckland Warns Of Negative TPP Impact

    The University of Auckland May 20, 2015 University of Auckland Warns of Negative TPP Impact With the Trans Pacific Partnership (TPP) negotiation drawing to a close, the University of Auckland has expressed serious concerns about its potential implications. ... More>>

    NZ Flag: Flag Referendum Gets Hit Hard In New Poll

    The latest Campbell Live text poll confirms it is time for the Prime Minister to listen to the public and shelve his flag referendum, says the New Zealand First Leader Rt Hon Winston Peters. More>>

    Gordon Campbell: The Government’s Belated Moves On Property Speculation

    Is it a property tax on capital gains or a capital gains tax on property? The Jesuitical distinctions in the government’s spin about its latest moves on property speculators are all about whether the government can claim that it jumped, or confess that it ... More>>

    Grant Robertson:
    Key Can’t Just Be Prime Minister For Parnell

    John Key must show New Zealanders in next week’s Budget that he is more than the Prime Minister for Parnell, and is also the Prime Minister for Pine Hill, Putararu and Palmerston North, Labour’s Finance spokesperson Grant Robertson says. In a ... More>>

    Labour Party: More Regional Jobs Go In Corrections Reshape

    News that 194 Corrections staff are to lose their jobs will have ramifications not only for them and their families but for the wider community, Labour’s Corrections spokesperson Kelvin Davis says. Prison units at Waikeria, Tongariro and Rimutaka ... More>>

    ALSO:

  • NZ First - Prison Job Losses to Send Money Offshore
  • TPPA: ‘Team Obama’ Regroups On Fast Track, Still Not Deliverable

    ‘After yesterday’s stinging and unexpected defeat for the Obama administration’s attempt to advance Fast Track legislation in the US Senate, Senate leaders have worked up a compromise they think will get them past this blockage’, according to Auckland ... More>>

    NZ Government: 5,500 More Doctors And Nurses In Our Hospitals

    Health Minister Jonathan Coleman says a record number of doctors and nurses are working in District Health Boards across the country. More>>

    Controller and Auditor General: Katherine Rich Conflict of Interest Decision

    We are writing to you about a matter that has been raised with us by members of the public. More>>

    ALSO:


    Budget 2015: Andrew Little On The 2015 Budget

    Speaking to the Chamber of Commerce, the Labour opposition leader attacked the government’s approach to economic issues facing New Zealand. He said they have been “more than reckless in their complacency” and “the next week’s budget will do nothing ... More>>

    Defence Force: NZDF Building Partner Capacity Mission Personnel In Iraq

    NZDF Building Partner Capacity Mission Personnel in Iraq The New Zealand Defence Force Building Partner Capacity training mission contingent is in place at Taji Military Complex in Iraq. The Chief of Defence Force Lieutenant General Tim Keating says the ... More>>

    PM Press Conference: ACC Levy Cuts Announced

    In a press conference this afternoon in Wellington, ACC Minister Nikki Kaye proposed $500 million worth of ACC levy cuts. More>>

    Quakes: New Process For Red Zone Crown Offers

    Canterbury Earthquake Recovery Minister Gerry Brownlee has announced a process to give everyone a say on the Crown offers to owners of vacant, commercial/industrial and uninsured properties in the Residential Red Zone. More>>

    ALSO:

    Gordon Campbell: On The Battle Obama Is Waging Over The TPP

    For the past two and a half years, this column has been arguing that the fate of the Trans Pacific Partnership (TPP) deal will hinge on whether US President Barack Obama can win Trade Promotion Authority (TPA) from Congress... Last week, the White House finally, finally unveiled a draft TPA Bill. More>>

    ALSO:


    Gordon Campbell: On lessons for Labour from the UK election
    If the polls were right – and the pollsters kept telling us how accurate they’d been in 2010, and even Nate Silver was getting the same results – there seemed no way that the British Labour Party could lose last Thursday’s British election. With Labour predicted to win around 270 seats and the Scottish National Party batting around 55-60 seats, Labour seemed to be home free. But…as we now know, things didn’t turn out that way. Labour ended up with 232 seats and the Conservatives swept back to power with an outright majority, after winning only a little more than a third ( 36.9%) of the votes cast.MORE >>
    Also.

  • NZ PM John Key - PM congratulates David Cameron after UK election
  • The Nation IV Transcript - Hack Attack author Nick Davies
  • Get More From Scoop

     

    LATEST HEADLINES

     
     
     
     
     
    More RSS  RSS
     
     
     
     
    Regional
    Search Scoop  
     
     
    Powered by Vodafone
    NZ independent news