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

Digital Evolution: Scoop Independent News Launches "Operation Chrysalis"

From today Scoop is beginning a process of public consultation with the political, business and civil society groups it has served for the past 15 and a half years.

"It is hoped that in time - with new leadership and increased community engagement - the chrysalis will incubate a new kind of Scoop, one which can sustainably continue Scoop's Mission 'to be an agent of positive change'", says Scoop Founder, Editor and Publisher Alastair Thompson.

"As big publishing shrivels, public participation in contributing and spreading news has grown. Scoop has evolved with this wave by providing an independent platform, committed to upholding democracy, providing a voice to all, and providing the public easy access to information about decisions which affect them." More>>

 

Parliament Adjourns:

Greens: CAA Airport Door Report Conflicts With Brownlee’s Claims

The heavily redacted report into the incident shows conflicting versions of events as told by Gerry Brownlee and the Christchurch airport security staff. The report disputes Brownlee’s claim that he was allowed through, and states that he instead pushed his way through. More>>

ALSO:

TAIC: Final Report On Grounding Of MV Rena

Factors that directly contributed to the grounding included the crew:
- not following standard good practice for planning and executing the voyage
- not following standard good practice for navigation watchkeeping
- not following standard good practice when taking over control of the ship. More>>

ALSO:

Gordon Campbell:
On The Pakistan Schoolchildren Killings

The slaughter of the children in Pakistan is incomprehensibly awful. On the side, it has thrown a spotlight onto something that’s become a pop cultural meme. Fans of the Homeland TV series will be well aware of the collusion between sections of the Pakistan military/security establishment on one hand and sections of the Taliban of the other… More>>

ALSO:

Werewolf Satire:
The Politician’s Song

am a perfect picture of the modern politic-i-an:
I don’t precisely have a plan so much as an ambition;
‘Say what will sound most pleasant to the public’ is my main dictum:
And when in doubt attack someone who already is a victim More>>

ALSO:

Flight: Review Into Phillip Smith’s Escape Submitted To Government

The review follows an earlier operational review by the Department of Corrections and interim measures put in place by the Department shortly after prisoner Smith’s escape, and will inform the Government Inquiry currently underway. More>>

ALSO:

Intelligence: Inspector-General Accepts Apology For Leak Of Report

The Inspector-General of Intelligence and Security, Cheryl Gwyn, has accepted an unreserved apology from Hon Phil Goff MP for disclosing some of the contents of her recent Report into the Release of Information by the NZSIS in July and August 2011 to media prior to its publication. The Inspector-General will not take the matter any further. More>>

ALSO:

Drink: Alcohol Advertising Report Released

The report of the Ministerial Forum on Alcohol Advertising and Sponsorship has been released today, with Ministers noting that further work will be required on the feasibility and impact of the proposals. More>>

ALSO:

Other Report:

Leaked Cabinet Papers: Treasury Calls For Health Cuts

Leaked Cabinet papers that show that Government has been advised to cut the health budget by around $200 million is ringing alarm bells throughout the nursing and midwifery community. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news