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

 


Raetihi Tap Water Taste & Odour Issues Caused By Natural Alg

Raetihi Tap Water Taste & Odour Issues Caused By Natural Algae

Taste and odour issues with Raetihi’s reticulated (tap) water is due to naturally occurring growths of bacteria and algae in the Makara Stream the township’s current water source.

Ruapehu District Council Environmental Manager, Anne Marie Westcott, said that despite any taste or odour Raetihi township’s reticulated (tap) drinking water is safe to drink and will not cause people to be ill.

“Raetihi’s reticulated drinking water is treated, tested daily and is safe to drink,” she said.

“Council’s water contractor Veolia Water takes water samples daily for testing from alternating points around the Raetihi reticulated network as well as a weekly test for E.coli bacteria.”

“The daily water samples are tested for four key factors being; free available chlorine (FAC) which is a measure of the chlorine left in the water after treatment, the pH level which is a measure of alkalinity and acidity, water temperature which affects the pH level and turbidity which is a measure of organic material in the water.”

“The other significant test on the water is for E.coli bacteria which is undertaken once a week and performed at an independent laboratory.”

Ms Westcott said that E.coli is an indicator species of bacteria that live in warm blooded animals and can cause diarrhea, dehydration and vomiting in humans.

“The E.coli test requires the laboratory to see if a culture grows in the water sample which takes 48 hours so ‘instant’ results are not possible.”

Ms Westcott noted that there has been no positive E.coli found in the Raetihi water treatment plant of the reticulated network since 2010.

“The natural growths of bacteria and algae are more prevalent at this time of year when the water flows are lower and are found in many Ruapehu waterways including the Makotuku River which was the source of Raetihi’s water prior to the diesel contamination and the Whanganui River that supplies Taumarunui,” she said.

“The ecology of the individual waterway will affect the taste, odour and clarity of the water with the smaller size and slightly different characteristics of the Makara tending to amplify any effects.”

“With the Makara Stream being much smaller than the Makotuku River it has a smaller water flow and along with travelling through more open land it is more susceptible to these growths.”

“Removing taste and odour is not a simple process and requires a full treatment system which even then may not always remove all of the ‘taint’ in the water.”

Ms Westcott added that Veolia has indicated that the fine air bubbles which make tap water look ‘milky’ that got into the treatment system due to the failure of the raw water pipe last week are now dissipating out of the pipes.

ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Parliament Kicks Off: Carter Re-Elected Speaker

The 51st Parliament held its commission opening today with MPs sworn in and David Carter elected Speaker.

The day began at 11am with the three Royal Commissioners – the Chief Justice, the Court of Appeal President, and the Chief High Court Judge – declaring the new Parliament open.

After the Commissioners left the Chamber the swearing in of MPs took place in alphabetical order. Unlike some previous openings all MPs managed to swear on the bible or affirm their oath without any hiccups... More>>

 

Labour: Review Team Named, Leadership Campaign Starts

Labour’s New Zealand Council has appointed Bryan Gould as Convenor of its post-General Election Review. He will be joined on the Review Team by Hon Margaret Wilson, Stacey Morrison and Brian Corban.

ALSO:


Roy Morgan Poll: National Slips, Labour Hits Lows

The first New Zealand Roy Morgan Poll since the NZ Election shows National 43.5% (down 3.54% since the September 20 Election). This isn’t unusual, National support has dropped after each of John Key’s Election victories... However, support for the main opposition Labour Party has crashed to 22.5% (down 2.63% and the lowest support for Labour since the 1914 NZ Election as United Labour). More>>

ALSO:

In On First Round: New Zealand Wins Security Council Seat

Prime Minister John Key has welcomed New Zealand securing a place on the United Nations Security Council for the 2015-16 term. More>>

ALSO:

TPP Leak: Intellectual Property Text Confirms Risk - Jane Kelsey

The US is continuing its assault on generic medicines through numerous proposed changes to patent laws. ‘These are bound to impact on Pharmac if they are accepted’, according to Professor Kelsey... Copyright is another area of ongoing sensitivity... More>>

ALSO:

RMA: Smith Plans Reform To Ease Urban Development

Newly appointed Environment Minister Nick Smith has announced Resource Management Act reform to foster urban development, where high land prices and expensive resource consents are blocking efforts to provide affordable housing. More>>>

ALSO:

Gordon Campbell: On New Zealand getting involved (again) in other people's wars

Apparently, the Key government is still pondering how New Zealand will contribute to the fight against Islamic State. Long may it ponder, given the lack of consensus among our allies as to how to fight IS, where to fight it (Syria, Iraq, or both?) and with whose ground troops, pray tell? More>>

ALSO:

Gordon Campbell: On child poverty, and David Shearer’s latest outburst

The politicisation of (a) the public service and (b) the operations of the Official Information Act have been highlighted by the policy advice package on child poverty that RNZ’s resolute political editor Brent Edwards has finally prised out of the Ministry of Social Development. More>>

ALSO:

Gordon Campbell: On the government’s review of security laws

So the Key government is about to launch a four week review of the ability of our existing legislation to deal with “suspected and returning foreign terrorist fighters, and other violent extremists.”

According to its terms of reference, the review will consider whether the SIS, GCSB and Police are sufficiently able right now to (a) investigate and monitor suspected and returning foreign terrorist fighters… More>>

ALSO:

Labour Davids: Lisa Owen Interviews David Shearer

David Shearer still mulling whether to stand for Labour leadership but says his family doesn’t think it’s a good idea. Declares that it will be “incredibly divisive” for the Labour caucus if David Cunliffe returns to the role of leader. More>>

ALSO:

Taser Use & False Evidence: Timaru Officers "Failed To Follow Good Policing Practice"

The Authority found that even if Mr Reuben’s contact with the officer was deliberate it amounted to only a minor assault. While it found the use of the OC spray was justified, the use of the Taser was not a proportionate response... More>>

ALSO:

Little Surprise: Andrew Little To Contest Labour Leadership

I have decided to contest the Labour Party leadership. There are three immediate issues to deal with: creating greater cohesion across the caucus, rebuilding the relationship between caucus and the Party and, most importantly getting the process under way to listen to the voters who have abandoned us... More>>

ALSO:

Two Fewer Votes In Recount: "Positive Result" - Harawira

When I applied for a recount of the votes from the Tai Tokerau election, I made it clear that this application was not aimed at overturning the election result, but ensuring that all votes cast by Maori were treated with due respect, regardless of whether those votes are for Labour, Maori Party or MANA. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news