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

IGIS: Report On Release Of NZSIS Information To Cameron Slater

The Inspector-General of Intelligence and Security, Cheryl Gwyn, published her report on the inquiry into the release of NZSIS information to Mr Cameron Slater at a press conference in Wellington today...

The inquiry found the NZSIS released incomplete, inaccurate and misleading information in response to Mr Slater’s request, and provided some of the same incorrect information to the Prime Minister and the Prime Minister’s Office.

“These errors resulted in misplaced criticism of the then Leader of the Opposition, Hon Phil Goff MP. Mr Goff is owed a formal apology by the Service,” said Ms Gwyn. More>>

 
 

Parliament Today:

"New Faces, Wise Heads": Andrew Little Announces New Labour Line Up

Labour Leader Andrew Little today announced a bold new caucus line up which brings forward new talent and draws on the party’s depth of experience. More>>

ALSO:

Gordon Campbell: On Rick Ellis As Te Papa’s New CEO

The recent appointment of former TVNZ boss Rick Ellis to head Te Papa has copped a fair bit of criticism. Much of it has been inspired by the suspicion that Ellis has been hired to pursue the same purely commercial goals as he did at TVNZ, while similarly neglecting the serious cultural side of his mandate. More>>

Passport Cancellation, Surveillance: Draft 'Foreign Fighters Legislation' Released

The final draft of the Countering Terrorist Fighters Legislation Bill contains proposals previously announced by Mr Key in a major national security speech earlier this month. More>>

ALSO:

Related

Joint Statement: Establishment Of NZ-China Strategic Partnership

At the invitation of Governor-General Lt Gen The Rt Hon Sir Jerry Mateparae and Prime Minister The Rt Hon John Key of New Zealand, President Xi Jinping of the People’s Republic of China made a state visit to New Zealand from 19 to 21 November 2014... More>>

ALSO:

Savings Targets: Health Procurement Plan Changes Direction

Next steps in implementing DHB shared services programme Health Minister Jonathan Coleman says the Government has agreed to explore a proposal put forward by DHBs to move implementation of the shared services programme to a DHB-owned vehicle. More>>

ALSO:

More on Health Policy:

Auckland Unification: 'No IT Cost Blowout' (Just More Expensive)

Following discussion of an update on Auckland Council’s Information Services Transformational Programme at today’s Finance and Performance Committee, council has released the report publicly. More>>

ALSO:

Other Expensive Things:

Gordon Campbell: On The SAS Role Against Islamic State, And Podemos

Only 25% of the US bombing runs are even managing to locate IS targets worth bombing. As the NYT explains at length, this underlines the need for better on-the-ground intelligence to direct the air campaign to where the bad guys have holed up... More>>

ALSO:

Public Service: Commission Calls For Answers On Handling Of CERA Harassment

EEO Commissioner Dr Jackie Blue is deeply concerned about the way in which the State Services Commission has handled sexual allegations made against CERA chief executive Roger Sutton this week and is calling for answers. More>>

ALSO:

Gordon Campbell:
On Andrew Little’s Victory

So Andrew Little has won the leadership – by the narrowest possible margin – from Grant Robertson, and has already been depicted by commentators as being simultaneously (a) the creature of the trade unions and (b) the most centrist of the four candidates, which would be an interesting trick to see someone try in a game of Twister. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news