Invercargill Campaign 2016

How to become involved:


What was the outcome of the 2015 Long Term Plan on the fluoridation issue?

Invercargill to remain fluoridated.

What parts of Invercargill are fluoridated?

All that are connected to the Council’s water supply.

What fluoride chemicals are used to fluoridate Invercargill’s water supply?

Sodium silico fluoride.

Where do the fluoride chemicals that are used to fluoridate Invercargill’s water supply come from?

Belgium (Supplier Prayon Rupel). New Zealand importer is DC Rosser

What level is Invercargill fluoridated at?

In the range 0.7 to 0.8 mg/litre.

Where is the waste water for Invercargill discharged?

The New River Estuary.

Is there a Resource consent for the discharge of fluoridation chemicals into the New River Estuary?

There is a Trade Waste Bylaw which ensures compliance with Council’s consent to discharge its treated waste water.

Can you provide the section of the consent that permits?

Not provided. See the Invercargill City Council Waste Water Resource Consent.

Is there a Resource Consent held by Invercargill Council to add Sodium Silico Fluoride to the Invercargill’s water supplies?


How much per annum is spent on Sodium Silico Fluoride?

Approx. $10,000. (was $15,000 in 2016)

How much per annum is spent on implementing water fluoridation?

About $1,000 in maintenance.

How much per annum is spent on testing the levels of water fluoridation?

Not recorded.

How many Tonne of Sodium Silico fluoride is added into Invercargill’s shared environment?


How frequent is the levels of fluoride in the water tested?

Weekly on the water leaving the  treatment plant and at three other points.

Who performs the testing?

The Invercargill City Council Laboratory which is Ministry of Health certified to carry out the testing and holds IANZ (International Accreditation New Zealand) accreditation.

When did fluoridation begin in Invercargill and has there been any public consultation since beginning?

Fluoridation started in 1963. No Referendums or Tribunals since the start of fluoridation


March 2016

The Invercargill Council is upgrading its water treatment station.Ideal time to stop fluoridation as Council could choose not to include it in the new station.


May 2013

From Invercargill:  There was total of 335 submissions, 29 of these being oral submission. After a meeting with the council on Friday we were able to negotiate having a 2 hours, 10 minute presentation slot on Wednesday 8 May from 140pm to 4.05pm (15 minute break in between). We are going to play the ‘professional perspectives’ DVD and the ‘fluoride deception’ DVD. In between the two DVDs we are going to  have 6 oral submissions.

The submission topics we are looking at doing will be: Freedom of choice; Invercargill public perspectives/views on water fluoridation (based on the experience our group had in talking people about water fluoridation); harmful effects on babies; lowering IQ, Health conditions (thyroid); Topical use benefits; overseas perspectives/research of water fluoridation (western Europe etc)

Pro-fluoridation article in Southland Times 5th March 2013.

Invercargill uses sodiumsilico fluoride as its fluoridation chemical. In a tender document to Wellington Regional Council, fluoride chemical supplier D.C. Rosser says that “Invercargill Council before switching to Prayon SSF last year, experienced numerous problems with an alternative Chinese SSF supply that included caking, yellow discolouration, metal springs, plastic and cardboard in supplied product that frequently blocked their feed
mechanisms.”  See DC Rosser Tender0001.pdf