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

Greek Riddles:
Gordon Campbell On The Recent Smackdown Over Greece

There had been a fortnight of fevered buildup. Yet here we are in the aftermath of the February 28 showdown between the new Syriza government in Greece and the European Union “troika” and… no-one seems entirely sure what happened. Did the asteroid miss Earth?

It seems to have. The EU still exists. Syriza is now claiming a victory of sorts. It doesn’t help that the only people who do appear to be sure (the Greeks buckled) are claiming the exact opposite to what the other group (the Greeks won!) are saying. Plus, there are bets either way e.g. Bloomberg News: “Its too early to say who caved in to whom.” More>>

 

PARLIAMENT TODAY:

Iraq: Ex-Hostage Says Government Not Putting NZers, Iraqis First

Harmeet Singh Sooden is travelling to Iraq in the coming weeks to work with Christian Peacemaker Teams (CPT) on a short-term assignment. More>>

ALSO:

Joint Statement: Australia-New Zealand Leaders’ Meeting

Prime Minister Key warmly welcomed Prime Minister Abbott and Mrs Abbott to New Zealand. The visit has enabled wide-ranging and substantive discussion that has underlined the strength, value, diversity and warmth of our trans-Tasman relationship. More>>

ALSO:

Press Conference: Peters To Stand In Northland By-Election

New Zealand First Leader Winston Peters has announced his intention to stand in the Northland by-election, citing his own links to the electorate and ongoing neglect of the region by central government. More>>

ALSO:

Gordon Campbell: On The Wage Hike For MPs (and Paul Robeson)

Hard to tell what is more infuriating. Is it the 5.3% increase on the already bloated salaries of MPs, or their pantomime of outrage at being gifted with such a wonderful back-dated bonanza? More>>

ALSO:

No Designers Or Visual Artists: Flag Panel Members Announced

The Government has appointed 12 New Zealanders as members of the Flag Consideration Panel which will engage with the public about a possible new New Zealand flag, Deputy Prime Minister Bill English says. More>>

ALSO:

Labour MP Stands Down From Portfolio: Comment From Carmel Sepuloni

The first I knew of my mother’s charges was when I was called by a reporter yesterday. I spoke to Andrew and we agreed there is a conflict of interest at the present time which means I will temporarily stand aside from the Social Development portfolio. It’s the right thing to do… . More>>

ALSO:

Gordon Campbell: On Whether NZ Troops Are The Least Of Islamic State’s Problems

Given that it has been politically packaged and sold as a training mission, the Iraq deployment announced yesterday by Prime Minister John Key seemed to be mysteriously short of actual trainers... The other wing of the argument is whether a troop deployment is (a) the only effective way and (b) the appropriate time to combat Islamic State. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news