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

Patience: Drive Safe

Be patient before passing is the AA's message for drivers this Labour weekend.

"People taking crazy risks to get past other vehicles is one of the most dangerous things on the road,” says AA spokesperson Dylan Thomsen.

“The weather is looking good for the long weekend so the roads will be busy. Unfortunately, that also increases the chances of people getting frustrated and trying a risky passing manoeuvre. When they get past, there will probably be more traffic up ahead anyway so it won’t get people there faster.” More>>

 
 

Parliament Today:

Employment Relations Bill: Govt Strains To Get Tea Break Law Through

The Government has been left with egg on its face - failing to get its much-vaunted, but hugely unpopular, meal break law passed in the first week of its new term, Labour spokesperson on Labour Issues Andrew Little says. More>>

ALSO:

Guns: Police Association Call To Arm Police Full Time

"The new minister gave his view, that Police do not need to be armed, while standing on the forecourt of parliament. The dark irony was that the interview followed immediately after breaking news of a gunman running amok in the Canadian parliament in Ottawa..." More>>

ALSO:

Gordon Campbell: On The Tokenism Of New Zealand's Role Against Islamic State

Our contribution against IS will be to send SAS forces to train the Iraqis? That’s like offering trainers to General Custer just as the 7th cavalry reached the Little Big Horn. More>>

ALSO:

Scoop Business: Shell And Todd Caught Drilling Without Approval

Multi-national oil company Shell’s New Zealand arm and local energy giant Todd Energy have breached the new law governing New Zealand’s Exclusive Economic Zone, the Environmental Protection Authority says in an Oct. 10 document released by the Green Party. More>>

ALSO:

Gordon Campbell: On Pharmac, Gough Whitlam And Sleater-Kinney

We’re not at the outset of these negotiations. The outset was six years ago, and negotiators were hoping to have some sort of ‘framework’ deal finished in time for the APEC meeting in a few weeks’ time. These ‘extreme’ positions are what we’ve reached near the intended end of the negotiations… More>>

ALSO:

PM Of Many Hats: Questions, No Answers On Whale Oil

Dr RUSSEL NORMAN (Co-Leader – Green) to the Prime Minister: How many times since November 2008 has he spoken with blogger Cameron Slater on the phone and how many times, if any, has he texted him?
Rt Hon JOHN KEY (Prime Minister): None in my capacity as Prime Minister. More>>

ALSO:

Aussie Investigation Dropped: Call On Minister McCully To Pursue The Case Of Balibo Five

West Papua Action is deeply concerned at the lack of any clear outcome from the Australian Federal Police inquiry into the 1975 deaths of the ‘Balibo Five’ including NZ journalist Gary Cunningham. More>>

ALSO:

'Feed The Kids' Bill: Metiria Turei To Lead Fight On Feeding Hungry Children

Green Party Co-leader Metiria Turei is urging all political parties to support the Feed the Kids Bill which she inherited today from Mana leader Hone Harawira. More>>

ALSO:

Parliament Today: State Opening Of Parliament

The House sat at 10.30am on Tuesday before MPs were summoned to hear the Speech from the Throne in the Legislative Council Chamber. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news