Kia ora Sharna

 

Thank you for your request under the Official Information Act 1982 (the
Act), received by the Ministry of Health on 26 October 2025. You
requested:

 

Pursuant to the Official Information Act 1982 (OIA), I am writing to
request full access to all official information held by the Ministry of
Health relating to:

FLUORIDE SUPPLY CHAIN
1. Authority & Purpose
This request is made to obtain complete disclosure of all aspects of
fluoride chemicals used in public water supplies in New Zealand inclusing
all [District/Region]. The purpose is to identify all suppliers,
transporters, contractors, decision-makers, environmental oversight, and
safety compliance, leaving no element undisclosed.
2. Information Requested
A. Supply & Production
1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.
2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities.
3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.
4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.
5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health impacts.
6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand.
7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources.
B. Transport & Logistics
8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.
9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted).
10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances.
C. Contractors & Distribution
11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.
12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.
13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors.
D. Policy & Decision-Makers
14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations.
15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride.
E. Compliance, Oversight & Safety
16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.
17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.
18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.
F. Global Precedents & Case Studies
19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah).
20. Include international case law, peer-reviewed studies, legal
decisions, or environmental assessments showing health or environmental
risks, chemical by-products, or public health outcomes linked to fluoride.
21. Provide references to any policy or scientific evidence considered
when approving or maintaining fluoridation in New Zealand
 

 

The reference number for your request is H2025074650. As required under
the Act, the Ministry will endeavour to respond to your request no later
than 20 working days after the day your request was
received: [1]http://www.ombudsman.parliament.nz/

 

If you have any queries related to this request, please do not hesitate to
get in touch ([2][email address]).

 

 

Ngā mihi 
 
  

OIA Services Team

Ministry of Health  | Manatū Hauora 

M[3]inistry of Health information releases 

 

show quoted sections

References

Visible links
1. http://www.ombudsman.parliament.nz/
2. mailto:[email address]
3. https://www.health.govt.nz/about-ministr...

Kia ora,
Thank you for your request for official information received on 26 October
2025 requesting:
FLUORIDE SUPPLY CHAIN
1. Authority & Purpose
This request is made to obtain complete disclosure of all aspects of
fluoride chemicals used in public water supplies in New Zealand inclusing
all [District/Region]. The purpose is to identify all suppliers,
transporters, contractors, decision-makers, environmental oversight, and
safety compliance, leaving no element undisclosed.
2. Information Requested
A. Supply & Production
1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.
2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities.
3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.
4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.
5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health impacts.
6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand.
7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources.
B. Transport & Logistics
8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.
9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted).
10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances.
C. Contractors & Distribution
11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.
12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.
13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors.
D. Policy & Decision-Makers
14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations.
15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride.
E. Compliance, Oversight & Safety
16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.
17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.
18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.
F. Global Precedents & Case Studies
19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah).
20. Include international case law, peer-reviewed studies, legal
decisions, or environmental assessments showing health or environmental
risks, chemical by-products, or public health outcomes linked to fluoride.
21. Provide references to any policy or scientific evidence considered
when approving or maintaining fluoridation in New Zealand
The Ministry of Health has decided to extend the period of time available
to respond to your request under section 15A of the Official Information
Act 1982 (the Act) as the consultations necessary to make a decision on
the request are such that a proper response to the request cannot
reasonably be made within the original time limit.
This is because some of the information you seek is held by other agencies
subject to the Act, as well as relevant local bodies subject to the Local
Government Official Information and Meetings Act 1987. The Ministry is
still undergoing consultation with several third-parties. Please note that
the Ministry does not hold much of this information, but we will look to
transfer your request to the relevant bodies as soon as practicable to
assist you and your request. 
You can now expect a response to your request on, or before, Friday 5
December 2025.
You have the right, under section 28 of the Act, to ask the Ombudsman to
review my decision to extend the time available to respond to your
request.
Ngā mihi 
  

OIA Services Team

Ministry of Health  | Manatū Hauora 

M[1]inistry of Health information releases 

show quoted sections

References

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1. https://www.health.govt.nz/about-ministr...

Kia ora,
Please find attached a letter regarding the partial transfer of your
request for official information. 
Ngā mihi 
  

OIA Services Team

Ministry of Health  | Manatū Hauora 

M[1]inistry of Health information releases 

show quoted sections

References

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1. https://www.health.govt.nz/about-ministr...

OIA ref: CAS-01982-V4M6K1

 

Tēnā koe Sharna,

 

This email acknowledges that the Ministry of Health has transferred parts
of your information request to the Authority, as outlined in their letter
to you dated 26 November 2025. The Authority will now respond to your
request under the Official Information Act 1982.

 

Ngā mihi,

 

[1]Shape, arrow Description automatically generated 

 

Jessie Johnson-Smith [2](she/her) | Governance and Performance Advisor

Ngāti Porou | Ngāi Tūhoe

 

Water Services Authority - Taumata Arowai

Level 2, 10 Brandon Street

PO Box 628

Wellington 6140, New Zealand

[3]taumataarowai.govt.nz

 

 

 

 

If you have received this message in error, please notify the sender
immediately and delete this message along with any attachments.  Please
treat the contents of this message as private and confidential. Ngā mihi

 

 

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Tēnā koe Sharna

  

Thank you for your Official Information Act request received by WorkSafe
New Zealand on 26 November 2025. 

  

We will respond to your request in accordance with the provisions of the
Official Information Act as soon as reasonably practicable and not later
than 20 working days. 

  

If we need to extend this timeframe, we will let you know before that date
with the reasons why. 

  

Please contact [1][email address] if you have any
questions. 

  

Ngā mihi, 

 

 

Ministerial Services 

8 Willis Street 

Wellington 

W    [2]worksafe.govt.nz 

[3][IMG]  [4][IMG]  [5][IMG]  [6][IMG]

[7][IMG]

 

 

[8]www.govt.nz - your guide to finding and using New Zealand government
services

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8. http://www.govt.nz/

Kia ora Sharna

 

I hope that this email finds you well.

As part of your Official Information Act request that was originally sent
to the Ministry of Health, a section of your request has been transferred
to New Zealand Transport Agency (NZTA) for response and review.
Specifically, the question asked is:

 

"10. Include all applicable laws, licenses, and regulatory frameworks
under which these transporters operate, particularly regarding hazardous
substances.".

 

Please find the below:

 

Licences required: The appropriate licence endorsement that a driver or
operator transporting goods of this nature would need is their "D
endorsement". Depending on the size of vehicle that is transporting the
goods or in this case fluoride, the driver or operator would need their
Class 2, Class 3, Class 4 or Class 5 Licence class.

 

For more information on the Dangerous Good Endorsement, please view the
below link:

 

[1]Applying for a dangerous goods (D) endorsement | NZ Transport Agency
Waka Kotahi

 

Regulatory Framework: Under the Land Transport Act 1998, there is the
"Dangerous Good 2005" rule that sets out legal requirements for the safe
transport of dangerous good by road or rail.

 

[2]Land Transport Rule: Dangerous Goods 2005 | NZ Transport Agency Waka
Kotahi

 

I believe that the above has answered the questions that were asked within
your OIA request but if you need any further clarification, please do not
hesitate to get back in touch.

 

All the best.

 

Ngā mihi

 

Morgan Greene

 

Customer Relations Advisor

Te Mahau - Customer Services

NZ Transport Agency Waka Kotahi

Palmerston North Office 

Private Bag 11777, Palmerston North 4442, New Zealand

 

______ _____________________________________

 

References

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1. https://www.nzta.govt.nz/driver-licences...
2. https://www.nzta.govt.nz/resources/rules...

Kia ora Sharna

 

On behalf of the Chief Executive, Steven Perdia, this email is to
acknowledge receipt of your request for information.  Your request was
transferred in part to us by the Ministry of Health today, and we will now
process it under the Local Government Official Information and Meetings
Act 1987 (LGOIMA). I have attached the transfer letter with your request
included, with the parts that have been transferred to us and to which we
can respond, highlighted.

 

We will endeavour to respond to your request as soon as possible and in
any event no later than 19 January 2026, being 20 working days after the
day your request was received by us. Please note that as the last
statutory working day of 2025 is 19 December 2025, and the next working
day is 11 January 2026, the 20 working days period for your request will
end on 19 January 2026.  However we will make every effort to send our
response to you as soon as possible.

 

Please note that under the Act we are permitted to charge for making the
information available, including gathering, collating and preparing it for
release. If that is the case, we will provide an estimate of the cost in
accordance with our Fees and Charges Schedule, before we proceed to
collate the information. 

 

Please see our public website for information about making an official
information request and the Local Government Official Information and
Meetings Act 1987 under which such information is
given: [1]https://www.whakatane.govt.nz/contact-us...

 

If you have any further enquiries, please call 07 306 0500 or respond to
this email accordingly.

 

Nāku noa, nā,

 

 

Ana-Maria Bewley
Administration Assistant .
KAITAUTOKO MAHI WHAKARITE 

WHAKATĀNE DISTRICT COUNCIL   |   TE KAUNIHERA Ā-ROHE O WHAKATĀNE
P +64 07 306 0500
E [2][email address]    W [3]whakatane.govt.nz
14 Commerce Street, Private Bag 1002, Whakatāne 3158, New Zealand

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The content of this email is confidential information and may also be
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intended only for the person named above. If this email is not addressed
to you, you
must not use, read, distribute or copy this document. If you have
received this document
by mistake, please call us on 0800 WDCICT and destroy the original
message. Thank you.

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Kia ora Sharna,

 

Thank you for your official information request received by Council on
Monday 1 December 2025.

 

Council will respond as soon as practical, no later than 20 business days
from receipt of your request.

 

Please note:

When counting business days, day 1 is the first working day after the
request is received by us, and means any day of the week other than:

o Saturday’s and Sunday’s,
o National public holidays, and regional anniversary days in the
relevant region, and
o The holiday period from 22 December 2025 to 9 January 2026
(inclusive).

 

 

Kind regards,

Stella
Customer Service Representative
Mangai Ratonga Kiritaki
 
P 07 571 8008 | FP 0800 926 732
1484 Cameron Road, Greerton, Tauranga 3112
[1]westernbay.govt.nz | [2]Facebook | [3]Instagram | [4]LinkedIn

 

 

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 intended only for the recipient(s) named above.  If the reader of this
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information is strictly prohibited.

If you have received this message in error, please notify the writer
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Sharna

 

I am writing to acknowledge receipt of your official information request
dated 01/12/2025 for H2025074650 Fluoride Supply Chain Information
CRM:0001645.

 

We received your request on 01/12/2025. We will endeavour to respond to
your request as soon as possible and in any event no later than
08/01/2026, being 20 working days after the day your request was received.
If we are unable to respond to your request by then, we will notify you of
an extension of that timeframe.

 

The council may charge for this information if it will take longer than 1
hour to research and collate or is required to copy more than 20 pages of
material.  If this is the case you will be advised of the estimated cost
before we proceed with the information request. 

 

There is also the possibility that your request may be made publicly
available on our website, with personal details removed.

 

You will also need to confirm (email confirmation) that you accept these
costs before the request is processed.

 

Your correspondence has been referred to Andrew Guthrie for response. 

If any additional factors come to light which are relevant to your
request, please do not hesitate to contact us so that these can be taken
into account.

 

Yours sincerely,

 

 

 

 

Amanda Watson

Customer Services Team Leader

ASHBURTON DISTRICT COUNCIL

2 Baring Square East PO Box 94  P (03) 307 7700 [1]www.ashburtondc.govt.nz
[2]http://www.ashburtondc.govt.nz/

Ashburton Ashburton 7740 E [3][email address]

 

 

 

From: Alexander Rees <[4][email address]>
Sent: Monday, 1 December 2025 10:03
To: [5][email address]; [6][email address];
[7][email address]; [8][email address];
[9][email address]; [10][email address]; ADC Customer
Services <[11][email address]>; [12][email address];
[13][email address]; [14][email address];
[15][email address]; [16][email address];
[17][email address]; [18][email address];
[19][email address]; [20][email address];
[21][email address]; [22][email address];
[23][email address]; [24][email address]; [25][email address];
[26][email address];
[27][email address];
[28][email address]; [29][email address];
[30][email address]; [31][email address];
[32][email address];
[33][email address]; [34][email address];
[35][email address]; [36][email address];
[37][email address]; [38][email address]
Cc: Alexander Rees <[39][email address]>
Subject: Querying partial transfer: H2025074650 Fluoride Supply Chain
Information CRM:0001645
Importance: High

 

Kia ora,

 

The Ministry of Health has received an OIA related to fluoridation. Please
see attached – it is quite extensive. The Ministry does not hold much of
this information.

 

We are looking to refuse relevant sections we do not hold, direct the
requester to published OIAs and webpages on our website and transfer the
request to relevant government agencies and local authorities under the
LGOIMA.

 

Please note the Ministry has completed the transferred several parts to
relevant agencies. This includes questions 3, 5, 10, 15, 16, 17, 18, and
20. This is detailed in the attached transfer letter.

 

Please can you advise what parts of this request may sit with you – this
could also include some of the questions already transferred above.

 

[40]@[email address] I have been advised that NZDF
Burnham, Woodbourne and Linton Military Camps fluoridates their water
supplies. Please let me know if you think a transfer would be appropriate
in this instance.

 

I understand this is a complex request, which may incur charging costs for
the requester with each local authority. However, the Ministry is
obligated to seek and action a transfer to each relevant local authority
for information you hold, as per ombudsman guidance.

 

Please can you respond COB Wednesday 3 December. The Ministry will look to
complete the transfer(s) of relevant sections of the request no later than
Friday 5 December.

 

Please reach out with any questions you may have.

 

Ngā mihi,

 

Alex Rees

Advisor

Government Services

Corporate Services Group | Te Pou Tiaki

[41][email address]

Ministry of Health, 133 Molesworth Street Thorndon, Wellington 6011

 
[43]Facebook icon [44]Bluesky
[42]Ministry of Health New social media icon [45]X (formerly
Zealand Twitter) icon [46]YouTube
icon [47]LinkedIn icon

 

 

show quoted sections

Amanda Watson  |  Customer Services Team Leader 
DDI 033077873  | M 0276053510

[48][IMG]

 

References

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30. mailto:[email address]
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32. mailto:[email address]
33. mailto:[email address]
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35. mailto:[email address]
36. mailto:[email address]
37. mailto:[email address]
38. mailto:[email address]
39. mailto:[email address]
40. mailto:[email address]
41. mailto:[email address]
42. http://www.health.govt.nz/
43. https://www.facebook.com/minhealthnz
44. https://bsky.app/profile/health.govt.nz
45. https://twitter.com/minhealthnz
46. https://www.youtube.com/minhealthnz
47. https://www.linkedin.com/company/ministr...
48. https://www.ashburtondc.govt.nz/

Tēnā koe | Dear Sharna

 

Please find attached an acknowledgment letter with regards to your request
for information under LGOIMA. Your request has been forwarded onto the
relevant business group to respond to. 

 

If any additional factors come to light which may be relevant to your
request, please do not hesitate to contact me as soon as possible so that
these can be taken into account.

 

Ngā mihi | Best regards

Neisha

 

For request(s) for information made under Local Government Official
Information and Meetings Act (LGOIMA)

Email - [email address]

Online -
https://www.horowhenua.govt.nz/Council/D...

 

For request(s) made under the Privacy Act 2020

Email - [email address]

Online -
https://www.horowhenua.govt.nz/Council/D...

 

Please note my days of work are 630am to 3pm, Monday to Friday

You can reach me via my cell phone, Teams or email during work hours

 

MON TUE WED THU FRI
✓ WFH ✓ ✓ WFH

 

 

LGOIMA Officer

Waea Mahi | (06) 366 0999

126 Oxford Street, Levin
Private Bag 4002, Levin 5540

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This message may contain privileged and confidential information intended
only for the use of the addressee(s) named above.
If you are not an intended recipient of this message you are hereby
notified that any use, dissemination, distribution or reproduction of this
message is prohibited.
If you have received this message in error please notify the sender
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Any views expressed in this message are those of the individual sender and
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Kia ora,
Please find attached a letter regarding the partial transfer of your
request for official information.
Ngā mihi 
  

OIA Services Team

Ministry of Health  | Manatū Hauora 

M[1]inistry of Health information releases 

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Kia ora,
Please find attached the response for your request for official
information. 
Ngā mihi 
  

OIA Services Team

Ministry of Health  | Manatū Hauora 

M[1]inistry of Health information releases 

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References

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Kia ora,
Please find attached a letter regarding the partial transfer of your
request for official information.
Apologies, it is now attached to this email.
Ngā mihi
  

OIA Services Team

Ministry of Health  | Manatū Hauora 

M[1]inistry of Health information releases 

show quoted sections

References

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Kia ora Sovereign Sharna

I am writing to acknowledge receipt of your official information request
below dated 5 December 2025.

We will endeavour to respond to your request as soon as possible and in
any event no later than 23 January 2026, being 20 working days after the
day your request was received. If we are unable to respond to your request
by then, we will notify you of an extension of that timeframe.

Under the Local Government Official Information and Meetings Act, requests
over the holiday period are excluded as working days. The holiday period
is 20 December 2025 to 10 January 2026 (inclusive). This affects LGOIMA
requests received on or after 22 November 2025.

Your request is being handled by the Information Requests team. If you
have any queries, please feel free to contact us by emailing
information.requests[1]@tauranga.govt.nz 

If any additional factors come to light which are relevant to your
request, please contact us so that these can be taken into account.

Ngā mihi

Sarah Pharo | Administrator: Information Requests
Tauranga City Council | 07 577 7000 |
[2][email address]

 

 

From: Alexander Rees <[email address]>
Sent: Friday, 5 December 2025 7:44 pm
Cc: Alexander Rees <[email address]>
Subject: Completed transfer: H2025074650 CRM:0001645

 

CAUTION:External Email.

 

Tēnā koutou,

 

Completed transfer of Official Information request

 

Thank you all for your assistance this week on this Official Information
Act received by the Ministry.

 

Please find attached the completed transfer letter we sent to the
requester this evening. This outlines which parts of the request have been
(partially) transferred to your respective council/body.

 

Also attached, for your reference, is the Ministry’s response to the
request.

 

As noted in my correspondence with you, now the (partial) transfer has
been completed, you can count today as day zero for receiving the request.
You can calculate your 20 working days to respond to the requester
accordingly.

 

Please liaise directly with the requester should you consider charging for
substantial collation and/or research.

 

For any parts of the request that your respective council does not hold
information, please feel free to refuse that part of the request as per
the LGOIMA, and/or refer them to MoH’s response.

 

I greatly appreciate all of your assistance and patience through the week.

 

Ngā mihi,

 

Alex Rees

Advisor

Government Services

Corporate Services Group | Te Pou Tiaki

[3][email address]

Ministry of Health, 133 Molesworth Street Thorndon, Wellington 6011

 
[5]Facebook icon [6]Bluesky social
[4]Ministry of Health New media icon [7]X (formerly Twitter)
Zealand icon [8]YouTube icon [9]LinkedIn
icon

 

 

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Kia ora,

 

Thank you for contacting Waipā District Council.   

  

We acknowledge receipt of your request for information under the Local
Government Official Information and Meetings Act 1987 (LGOIMA).

 

Your request for information has been forwarded to the appropriate staff
member. We will make contact with you if we require clarification of your
request, more time to respond, or if your request has been transferred to
another organisation to respond to. We will respond to your request as
soon as reasonably practicable, but no later than 20 working days after
the day on which your request was received, unless more time is
required.  Please note, in accordance with LGOIMA the dates of 20/12/2025
– 10/01/2026 inclusive are not counted as working days.

 

If you have any questions, please contact us by email
at [1][email address] quoting the reference number
assigned to this request, CRLXG00100/25.

 

Kind regards,

 

LGOIMA Response Team

WAIPĀ DISTRICT COUNCIL

 

 

COPY OF OIA REQUEST From: Sovereign sharna Sent on: Saturday, October 25,
2025 11:51:13 PM To: OIA/LGOIMA requests at Ministry of Health Subject:
Official Information request - Fluoride Supply Chain Information Dear
Ministry of Health, Request under the Official Information Act 1982 (OIA)
Pursuant to the Official Information Act 1982 (OIA), I am writing to
request full access to all official information held by the Ministry of
Health relating to: FLUORIDE SUPPLY CHAIN 1. Authority & Purpose This
request is made to obtain complete disclosure of all aspects of fluoride
chemicals used in public water supplies in New Zealand inclusing all
[District/Region]. The purpose is to identify all suppliers, transporters,
contractors, decision-makers, environmental oversight, and safety
compliance, leaving no element undisclosed. 2. Information Requested A.
Supply & Production 1. Identify the factory/facility where the fluoride
chemicals supplied to New Zealand water systems are produced, including
location, operator, and production process. Include all applicable laws,
regulations, licenses, and international standards governing manufacture.
2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities. 3. Provide the full chemical composition, including
chemical names, chemical formulae, and concentrations of all fluoride
compounds added to the public water supply. 4. Provide all Safety Data
Sheets (SDS), production records, and toxicology studies related to the
fluoride chemicals supplied. 5. Provide details of any chemical
by-products, waste, or residues generated during production, storage,
transport, or dosing, including their environmental and human health
impacts. 6. Disclose all corporate entities, owners, and shareholders that
profit from the manufacture or sale of fluoride chemicals in New Zealand.
7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready[1]made fluoride chemicals, or both, including
details of manufacturers and import sources. B. Transport & Logistics 8.
List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities. 9.
Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted). 10. Include all applicable laws, licenses, and regulatory
frameworks under which these transporters operate, particularly regarding
hazardous substances. C. Contractors & Distribution 11. Identify all
contractors, consultants, and water treatment personnel who handle, dose,
or monitor fluoride chemicals. 12. Provide full contract details,
including terms of service, duration, performance bonds, insurance
coverage, and any professional certifications required. 13. Disclose all
corporate structures, shareholders, and profit arrangements related to
these contractors. D. Policy & Decision-Makers 14. List all individuals,
boards, committees, and advisers who approve or recommend fluoride use in
New Zealand, including councils, Ministry of Health, and public health
associations. 15. Include all corporate affiliations, financial interests,
and advisory bodies that influence decisions regarding fluoride. Page 7 of
7 E. Compliance, Oversight & Safety 16. Provide copies of all risk
assessments, environmental impact statements, monitoring reports, and
internal or external evaluations regarding fluoride safety, dosing, and
public health. 17. Provide documentation of regulatory compliance,
inspections, or audits by government or third-party authorities. 18.
Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing. F. Global Precedents & Case Studies
19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah). 20.
Include international case law, peer-reviewed studies, legal decisions, or
environmental assessments showing health or environmental risks, chemical
by-products, or public health outcomes linked to fluoride. 21. Provide
references to any policy or scientific evidence considered when approving
or maintaining fluoridation in New Zealand

Thankypu Sharna

=====================================
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information, and may be subject to legal professional privilege. If this
message is not intended for you, do not use, read, distribute or copy it.
Please contact the sender immediately and delete the original message and
any attachments. Before opening or using attachments, check them for
viruses and effects. Waipā District Council makes reasonable efforts to
ensure that its electronic messages have been scanned and are free of
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attachments.
====================================

Te Kaunihera ā Rohe o Waipa

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Kia ora Sharna

 

Council has received a partial transfer of your request made to the
Ministry of Health and concerning fluoride. This request has been
forwarded to the Legal Team for acknowledgement under the Local Government
Official Information and Meetings Act 1987.

 

Council received a partial transfer of your request on 5 December 2025.
Council will endeavour to respond to your request as soon as possible and
in any event no later than 23 January 2026, being 20 working days after
the day your request was received, and taking into account the summer
holidays. If Council is unable to respond to your request by then, you
will be notified of an extension of that time frame.

 

Your request is being handled by our Water Services team.

 

 

Jen Amner

Legal Technical Specialist

 

Thames-Coromandel District Council

Private Bag 1001, 515 Mackay Street, Thames

p: 07 868 0200 

e: [1][email address]

w: [2]www.tcdc.govt.nz

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document. If you have received this document by mistake, please call us
and destroy the original. Thank you.

 

Please consider the planet before printing out this email. Thank you.

 

 

 

 

 

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Dear Sharna,

 LG 2408 - Fluoride Supply Chain Information

I am writing to advise we have received a partial transfer of your
official information request from the Ministry of Health, which we
received on Friday 05 December 2025.

We will endeavour to respond to your request as soon as possible, but no
later than 23 January 2026, being 20 working days after the day your
request was received. If we are unable to respond to your request by then,
we will notify you of an extension of that timeframe.

Manawatu District Council publishes Local Government Official Information
and Meetings Act 1987 (LGOIMA) requests and our responses, on our website.
To protect your privacy, we will generally not publish personal
information about you, or information that identifies you. Requests and
responses may be paraphrased. 

Your request is being managed by the LGOIMA Response Team. If you have any
queries, please feel free to contact the LGOIMA Response Team on 06 323
0000 or by replying to this email. 

Yours sincerely,

 

LGOIMA Response Team
l Manawatu District Council l  Private Bag 10001 l  Feilding 4743 l
l Phone: 06 323 0000 l Email:  [email address]

 

--------------------------------------------------------------------------

"Our people delivering great service to our community."

 

Tēnā koe Sharna

 

We acknowledge receipt of your official information request dated which
has been partially transferred to us by the Ministry of Health on  8
December 2025 for information regarding the fluoridation supply chain, as
detailed below. This request will be processed under the Local Government
Official Information and Meetings Act 1987.

 

We will be responding to the following questions:

1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.

 

3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

 

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

 

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

 

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.

 

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.

 

Given we received the offical partial request today from Ministry of
Health, we will endeavour to respond to your request as soon as possible
and in any event no later than 26 January 2026*, being 20 working days
after the day your request was received. If we are unable to respond to
your request by then, we will notify you of an extension of that
timeframe.

 

* The response date shown takes into account Summer holidays (20 December
to 10 January). [1]Refer to this guide for an explanation of the statutory
obligations.

 

If you have any queries, please feel free to contact us.

 

Ngā mihi

 

 

Business Support Team - Te Roopu Tautāwhi Ūmanga

 

Taupō District Council • 67 Horomātangi Street, Taupō, 3330

Private Bag 2005 • Taupō Mail Centre • Taupō 3352 • New Zealand

T +64 7 376 0899  E [2][email address]

Follow us on [3]Facebook

[4]www.taupo.govt.nz

 

 

 

Dear Ministry of Health,
Request under the Official Information Act 1982 (OIA)
Pursuant to the Official Information Act 1982 (OIA), I am writing to
request full access to all official information held by the Ministry of
Health relating to:

FLUORIDE SUPPLY CHAIN
1. Authority & Purpose
This request is made to obtain complete disclosure of all aspects of
fluoride chemicals used in public water supplies in New Zealand inclusing
all [District/Region]. The purpose is to identify all suppliers,
transporters, contractors, decision-makers, environmental oversight, and
safety compliance, leaving no element undisclosed.
2. Information Requested
A. Supply & Production
1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.
2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities.
3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.
4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.
5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health impacts.
6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand.
7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources.
B. Transport & Logistics
8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.
9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted).
10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances.
C. Contractors & Distribution
11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.
12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.
13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors.
D. Policy & Decision-Makers
14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations.
15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride.
E. Compliance, Oversight & Safety
16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.
17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.
18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.
F. Global Precedents & Case Studies
19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah).
20. Include international case law, peer-reviewed studies, legal
decisions, or environmental assessments showing health or environmental
risks, chemical by-products, or public health outcomes linked to fluoride.
21. Provide references to any policy or scientific evidence considered
when approving or maintaining fluoridation in New Zealand

Thankypu
Sharna

References

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http://www.facebook.com/TaupoDistrictCou...
4. http://www.taupo.govt.nz/

 

Kia ora Sovereign

LGOIMA request for: Fluoride Supply Chain Inquiry transferred from the
Ministry of Health

New Plymouth District Council (NPDC) acknowledges receipt of your
information request dated 08/12/2025 for:

The Ministry of Health has transferred part of your OIA request regarding
the Fluoride Supply Chain to New Plymouth District Council under the
Official Information Act. The specific questions transferred are numbers
3, 4, 8, 11, 12, 16, 17, and 18. NPDC will respond to these questions with
the information it holds. This part of your request will be considered
under the Local Government Official Information and Meetings Act 1987
(LGOIMA).

We received your request on 08/10/2025. We will endeavour to respond to
your request as soon as possible and in any event no later
than 26/01/2026, being 20 working days after the day your request was
received.

Please note pursuant to the Local Government Official Information and
Meetings Act (LGOIMA) the period from 20 December to 10 January inclusive
are not regarded as ‘working days’.

If we are unable to respond to your request by then, we will notify you of
an extension of that timeframe.

If any additional factors come to light which are relevant to your
request, please contact us so that these can be taken into account.

 

Ngâ mihi

LGOIMA Team

New Plymouth District Council | Liardet St | Private Bag 2025 | New
Plymouth 4340 | Ph 06-759 6060

[1]www.npdc.govt.nz| [2]Facebook | [3]Twitter

  

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or copy it. If you have received this email message in error please notify
the sender immediately and erase the original message and any attachments
from your system. Thank you.

Statements in this email and any attachments do not necessarily reflect
the views of New Plymouth District Council.

For more information about New Plymouth District Council, visit our
website at [4]www.npdc.govt.nz

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Kia ora Sharna

 

We have received your official information request 

We received your request transferred to us by the Ministry of Health on
5/12/2025 for information in regard to fluoridation of drinking water.

 

We will do our best to respond to your request as soon as possible and no
later than 26/1/2025. If we aren’t able to respond to your request within
this 20 working day period, we will let you know. The due date takes into
account summer holidays (20 December to 10 January) and Wellington
Anniversary Day (19 January).

  

We are working on your request 

We are currently gathering any information we hold that relates to your
request. If we need to clarify anything, we'll get in touch with you.  

  

On some occasions we need to charge for the cost of labour and materials
involved in making information available, or for making information
available urgently. If a charge is required, we will let you know before
your request is processed.   

  

If you have any questions, please feel free to contact us by emailing
[1][email address]. Your reference number is LGOIMA SRC0363117    

  

Ngā mihi

 

Merle Lavin
Governance Support Officer

Official Information Team
Legal Services

Palmerston North City Council
[2][IMG] Te Marae o Hine − 32 The Square
Private Bag 11034, Palmerston North 4442

06 356 8199
[3]pncc.govt.nz

 

 

 

Request under the Official Information Act 1982 (OIA) Pursuant to the
Official Information Act 1982 (OIA), I am writng to request full access to
all official informatin held by

the Ministry of Health relating to:

 

FLUORIDE SUPPLY CHAIN

1. Authority & Purpose

This request is made to obtain complete disclosure of all aspects of
fluoride chemicals used in public water supplies in New Zealand inclusing
all [District/Region]. The purpose

is to identify all suppliers, transporters, contractors, decision-makers,
environmental oversight, and safety compliance, leaving no element
undisclosed.

 

2. Information Requested

 

A. Supply & Production

1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process.

Include all applicable laws, regulations, licenses, and international
standards governing manufacture.

2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities.

3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health

impacts.

6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand.

7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers

and import sources.

 

B. Transport & Logistics

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.

9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted).

10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances.

 

C. Contractors & Distribution

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.

13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors.

 

D. Policy & Decision-Makers

14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations.

15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride.

 

E. Compliance, Oversight & Safety

16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.

 

F. Global Precedents & Case Studies

19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah).

20. Include international case law, peer-reviewed studies, legal
decisions, or environmental assessments showing health or environmental
risks, chemical by-products, or public health outcomes linked to fluoride.

21. Provide references to any policy or scientific evidence considered
when approving or maintaining fluoridation in New Zealand

 

Thankypu

Sharna

 

 

 

 

Requester - Sovereign sharna

email <[FOI #32674 email]>

 

 

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[1]transferredofrequest.png

Kia ora Sharna,

 

Transfer of request/Acknowledgement for official information

We write concerning an official information request received from
Ministry of Health on 8 December 2025 for Fluoride Supply Chain Details.

 The request has been transferred in part to Waitaki District Council,
specifically questions 3, 4, 8, 11 & 17 of the original request in the
attached correspondence. These being:

“ 3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

17. Provide documentation of regulatory compliance, inspections, or
audits by government or third-party authorities.”

We hereby acknowledge receipt of your request and will proceed with the
actions necessary to address it promptly.

Please note that we will endeavour to respond to your request as soon as
possible and no later than 26 January 2026, following the statutory
timeframe of 20 working days* after the day your request was received,
as prescribed by LGOIMA.

 

*The response date shown takes into account:

 1. Summer holidays (20 December to 10 January)

 

If we are unable to respond to your request by then, we will notify you
of an extension of that timeframe.

We appreciate your patience and understanding as we work to fulfil your
request.

 

Pro-active Release Privacy
Please note that as well as In order to protect the privacy of
responding directly to you, Waitaki individuals, we will not generally
District Council may also choose to publish information specific to an
release responses to requests for individual or their property, or
information on the council information that identifies
website. Information requested by the individual requesters.
media, from public sector
organisations and MPs will always be
published.

You have the right to seek an investigation and review by the Ombudsman
of this decision. Information about how to make a complaint is available
at [2]www.ombudsman.parliament.nz or freephone 0800 802 602.

 

Nāku noa, nā,/ Yours Sincerely

 

Case Management Team (LGOIMA)

 

Waitaki District Council [3]Council logo white.png
Private Bag 50058 [4][IMG] [5][IMG] [6][IMG] [7][IMG] 
Oamaru
Waitaki District
Otago 9444
New Zealand
The information transmitted, including attachments, is intended only for
the person(s) or entity to which it is addressed and may contain
confidential and/or privileged material. Any review, retransmission,
dissemination or other use of, or taking of any action in reliance upon
this information by persons or entities other than the intended
recipient is prohibited. If you received this in error please contact
the sender and destroy any copies of this information.

 

 

show quoted sections

Kia ora Sharna

 

Thank you for your request regarding fluoridation which we received on 5
December 2025 via partial transfer from the Ministry of Health. Your
request will be managed under the Local Government Official Information
and Meetings Act 1987 (LGOIMA) (the Act).

 

We will do our best to get a response to you by 24 January 2026, this
being the statutory 20 working days after your request was received
[Please note this date takes into account the Christmas period (20
December 2025 to 10 January 2026) and Wellington Anniversary Day (19
January 2026)  which are not considered to be working days under the
LGOIMA]. If we were unable to respond to your request by then, we will
notify you of an extension of that timeframe.

 

Your request is being handled by our Infrastructure and Asset Management
group, and the reference for your records is OIR 2526-217.

 

If any additional factors come to light which are relevant to your
request, please do not hesitate to contact us so that these can be
considered.

 

Please note that any information provided in response to your request may
be published on the Council website, with your personal details removed.

 

Ngâ mihi,

 

 

Mailbox - Information Request
04 296 4700

[1]www.kapiticoast.govt.nz

 

The material in this email is confidential to the individual or entity
named above, and may be protected by legal privilege. If you are not the
intended recipient please do not copy, use or disclose any information
included in this communication without Kâpiti Coast District Council’s
prior permission.

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Kia Ora,

 

We acknowledge receipt of your request for information, following a
partial transfer (items highlighted below) to Nelson City Council from the
Ministry of Health on 5 December 2025. The Service request number assigned
to your request is 2541822.

 

We will endeavour to respond to your request as soon as reasonably
practicable and in any event no later than 23 January 2026, being 20
working days after the day your request was received.   Working days
excludes public and provincial holidays and the period between 20 December
to 10 January inclusive.  If we are unable to respond to your request by
then, we will notify you of an extension of that timeframe.  

 

If you have any queries, please feel free to contact me at
[1][email address].

 

Ngâ mihi,

 

Kate Redgrove

LGOIMA Advisor

 

Please use the [2][email address] address for anything related to
information requests, as this is monitored/triaged when I’m not working.

 

Nelson City Council | Te Kaunihera o Whakatû
P 03 546 0404
[3]nelson.govt.nz

 

 

 

show quoted sections

Kia ora

I refer to your official information request to the Ministry of Health who
have transferred questions 4, 11 and 12 to our agency for response.

Our responses are outlined below.

Question 4: “Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied”

Please refer to the attached response to a similar request for information
responded to by our agency on 8 July 2024, which includes the Safety Data
Sheet applicable to the fluoridation of the Dannevirke Water Supply.

Questions 11 and 12: “Identify all contractors, consultants, and water
treatment personnel who handle, dose, or monitor fluoride chemicals.
Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.”

We have considered your request for supply of information that could
personally identify people whose roles involve working with fluoride
chemicals, including their contract details and professional
certification.   In considering your request for supply of this
information, we have carefully weighed up whether there would be any
public benefit to providing this level of personal information against the
Council’s obligation as an employer and holder of this information to
protect personal information under the Privacy Act 2020.  We also looked
into whether the information requested is subject to an obligation of
confidence, and decided that this is confidential information that the
Council is obligated to protect.

For these reasons, we decline to provide information requested under
questions 11 and 12, under section 7(2)(c)(i) in order to protect
information that is subject to an obligation of confidence where the
making available of the information would be likely to prejudice the
supply of similar information.  We are also withholding supply of this
information in order to comply with Information Privacy Principle 11 of
the Privacy Act 2020, which limits the disclosure of personal information
to any third party unless the agency believes there are reasonable grounds
to do so.  In reviewing the grounds for disclosure specified in Privacy
Principle 11 of the Privacy Act 2020, none of the specified grounds apply
in this instance.

You have the right to seek an investigation and review by the Ombudsman of
this decision. Information about how to make a complaint is available at
www.ombudsman.parliament.nz or freephone 0800 802 602.

Ngâ mihi

 

 

[1][IMG] Allie Dunn | Manager Democracy Services | Deputy Electoral
Officer
Democracy Services | Tararua District Council

show quoted sections

Good afternoon Sharna

 

We have received a transfer of part of your information request sent to
the Ministry of Health. The information you are requesting can be found on
our website at the following links:

 

Fluoride information including frequently asked questions:

[1]https://www.tauranga.govt.nz/services/wa...

 

Previous information request responses related to fluoride:

[2]https://www.tauranga.govt.nz/council/req...

 

Archived information request responses (search for the term fluoride):

[3]https://www.tauranga.govt.nz/council/req...

 

If you still have questions after reviewing this information, please let
us know.

 

Ngâ mihi

 

 

Emily Karaka ([4]she/her) | Information Request Advisor |
Tauranga City Council | 07 577 7000

[5][email address] | [6]www.tauranga.govt.nz

 

[7]Thanks Tauranga

 

Make flexibility work – if you receive an email from me outside of normal
business hours, I am sending it at a time that suits me. I am not however
expecting you to read it and/or reply until normal business hours.

 

The contents of this e-mail and any attachments is confidential and may be
privileged and/or subject to copyright. Unauthorised use, distribution or
copying of the contents is expressly prohibited. If you are not the
intended recipient, notify the sender immediately, delete the email and
attachments and all copies from your system, and do not use, read,
distribute, disclose or copy its contents. Violation of this notice may be
unlawful. Views expressed in this e-mail and attachments are those of the
author, and not necessarily those of Tauranga City Council. Tauranga City
Council does not accept liability for any loss, damage or consequence
arising from this email and/or attachments containing any virus, defect,
data corruption or transmission error.

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5. mailto:[email address]
6. http://www.tauranga.govt.nz/
7. https://www.tauranga.govt.nz/thanks

Good morning Sharna

 

This email is in response to a request for information that you sent to
the Ministry of Health on the 5^th December 2025 and the subsequent
partial transfer to this Council.

 

Invercargill City Council can only provide responses to Questions 3 and 18
and those responses are below for you.

 

We will now close out this request in our system, however, you have the
right to seek an investigation and review by the Ombudsman of this
decision. Information about how to make a complaint is available at
[1]www.ombudsman.parliament.nz or freephone 0800 802 602.

 

With kind regards

 

Liz

 

 

 

3.  Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of fluoride compounds added to the
public water supply.

Chemical Name:
Sodium hexafluorosilicate
CAS No 16893-85-9

Chemical Formulae:
Na[2](SiF[6])

Concentration of fluoride compounds added to the public water supply:
Added as a dry powder to target range in public water supply of 0.7 to
0.8mg/litre as fluoride.

 

 

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.

No incidents, complaints, or breaches relating to fluoride chemical
safety, handling, or dosing.

 

 

 

 

 

 
 
Liz Williams 

Team Leader - Governance and Executive Support
[2][email address]
Phone: 032111777 • DDI: [3]032118447 • Mobile:
[4]+64272858705 
[5]www.icc.govt.nz
101 Esk Street, Invercargill, 9810 • Private Bag 90104 
This message is for the named person's use only. It may contain
confidential, proprietary or legally privileged information. No
confidentiality or privilege is waived or lost by any mistransmission. If
you receive this message in error, please immediately delete it and all
copies of it from your system, destroy any hard copies of it and notify
the sender. You must not, directly or indirectly, use, disclose,
distribute, print, or copy any part of this message if you are not the
intended recipient.
 

[6]2025 Christmas email signature_holly.png

References

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5. http://www.icc.govt.nz/
6. https://www.icc.govt.nz/contact-us/chris...

 

Tçnâ koe Sharna

 

As you have been advised, part of your request questions 1, 11 and 12  
have  been transferred from Manatû Hauora  to Wellington Water, as allowed
under section 12 of the LGOIMA.

 

We’re currently considering the information you have asked for and will
provide it to you as soon as possible — and no later than 23 January 2026,
which is 20 working days from the date it was received to Wellington
Water, taking into account the summer holiday period of 20 December – 10
January. (
[1]https://www.ombudsman.parliament.nz/agen...)
If we’re unable to meet this timeframe, we’ll let you know and provide an
updated expected response date.

 

Nâku noa, na

Leni

Senior LGOIMA Advisor

 

 

Private Bag 39804, Wellington Mail Centre 5045

Level 4, 25 Victoria Street, Petone, Lower Hutt

[2]www.wellingtonwater.co.nz

 

 

 

 

 

 

References

Visible links
1. https://www.ombudsman.parliament.nz/agen...)%20If
2. Wellington Water Website
http://www.wellingtonwater.co.nz/

Good Morning

 

Please see attached a letter of response to your official information
request regarding Fluoride supply chain.

 

Kind regards

 

Pip Ritchie
Executive Assistant Regulatory Services
Kaiāwhina Matua Waeture
[1]https://www.woodsagency.nz/wp-content/up...
E [2][email address]
P 07 571 8008 | FP 0800 926 732

Postal address: Private Bag 12803, Tauranga Mail Centre, Tauranga 3143 
[3]westernbay.govt.nz | [4]Facebook | [5]Instagram | [6]LinkedIn

 

 

[7][IMG] 

The information contained in this message (and any accompanying documents)
is CONFIDENTIAL and may also be LEGALLY PRIVILEGED,

 intended only for the recipient(s) named above.  If the reader of this
message is not the intended recipient, you are notified that any use,

copying, disclosure, retention or distribution by any means of the
information is strictly prohibited.

If you have received this message in error, please notify the writer
immediately and destroy the original(s).

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6. https://www.linkedin.com/company/western...
7. https://www.westernbay.govt.nz/banner

Kia ora,

 

Please find attached our response to your request for information.  I have
reproduced the links in the letter below, in case your pdf software does
not recognise these:

 

Test results: 
 [1]https://www.nelson.govt.nz/repository/li...

 

Additional information on fluoridation: 
[2]https://www.nelson.govt.nz/4infrastructu...

 

Ombudsman’s website:  [3]https://www.ombudsman.parliament.nz/

 

Ngâ mihi,

 

Kate Redgrove

LGOIMA Advisor

 

Please use the [4][email address] address for anything related to
information requests, as this is monitored/triaged when I’m not working.

 

Nelson City Council | Te Kaunihera o Whakatû
P 03 546 0404
[5]nelson.govt.nz

 

From: LGOIMA <[email address]>
Sent: Monday, 8 December 2025 4:22 pm
To: Sovereign sharna <[FOI #32674 email]>
Subject: RE: Your Request for Information - Fluoridation - Partial
Transfer from MoH - SR2541822

 

Kia Ora,

 

We acknowledge receipt of your request for information, following a
partial transfer (items highlighted below) to Nelson City Council from the
Ministry of Health on 5 December 2025. The Service request number assigned
to your request is 2541822.

 

We will endeavour to respond to your request as soon as reasonably
practicable and in any event no later than 23 January 2026, being 20
working days after the day your request was received.   Working days
excludes public and provincial holidays and the period between 20 December
to 10 January inclusive.  If we are unable to respond to your request by
then, we will notify you of an extension of that timeframe.  

 

If you have any queries, please feel free to contact me at
[6][email address].

 

Ngâ mihi,

 

Kate Redgrove

LGOIMA Advisor

 

Please use the [7][email address] address for anything related to
information requests, as this is monitored/triaged when I’m not working.

 

Nelson City Council | Te Kaunihera o Whakatû
P 03 546 0404
[8]nelson.govt.nz

 

 

 

show quoted sections

Kia ora,
 
Please find attached Gisborne District Council’s formal response to your
Official Information Request received on Friday 5 December 2025.
 
If you have any questions about the information provided, please don’t
hesitate to contact us at [email address]. 
 
You have the right to seek an investigation and review of this response by
the Ombudsman under section 27 of the Local Government Official
Information and Meetings Act 1987. Information about how to make a
complaint is available at [1]www.ombudsman.parliament.nz or by calling
0800 802 602.
Ngā mihi, 

Frances Kennedy
Official Information and Privacy Officer
Te Kaunihera o Te Tairāwhiti - Gisborne District Council
E: [2][email address] | P:0800 653 800
A: 15 Fitzherbert Street, Gisborne | [3]Web | [4]Fb | [5]App

​​

--------------------------------------------------------------------------

From: Sovereign sharna
Sent:
To: OIA/LGOIMA requests at Ministry of Health
Subject: Re: Official Information request - Fluoride Supply Chain
Information
Dear Ministry of Health, Request under the Official Information Act 1982
(OIA) Pursuant to the Official Information Act 1982 (OIA), I am writing to
request full access to all official information held by the Ministry of
Health relating to: FLUORIDE SUPPLY CHAIN 1. Authority & Purpose This
request is made to obtain complete disclosure of all aspects of fluoride
chemicals used in public water supplies in New Zealand inclusing all
[District/Region]. The purpose is to identify all suppliers, transporters,
contractors, decision-makers, environmental oversight, and safety
compliance, leaving no element undisclosed. 2. Information Requested A.
Supply & Production 1. Identify the factory/facility where the fluoride
chemicals supplied to New Zealand water systems are produced, including
location, operator, and production process. Include all applicable laws,
regulations, licenses, and international standards governing manufacture.
2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities. 3. Provide the full chemical composition, including
chemical names, chemical formulae, and concentrations of all fluoride
compounds added to the public water supply. 4. Provide all Safety Data
Sheets (SDS), production records, and toxicology studies related to the
fluoride chemicals supplied. 5. Provide details of any chemical
by-products, waste, or residues generated during production, storage,
transport, or dosing, including their environmental and human health
impacts. 6. Disclose all corporate entities, owners, and shareholders that
profit from the manufacture or sale of fluoride chemicals in New Zealand.
7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources. B. Transport & Logistics 8.
List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities. 9.
Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted). 10. Include all applicable laws, licenses, and regulatory
frameworks under which these transporters operate, particularly regarding
hazardous substances. C. Contractors & Distribution 11. Identify all
contractors, consultants, and water treatment personnel who handle, dose,
or monitor fluoride chemicals. 12. Provide full contract details,
including terms of service, duration, performance bonds, insurance
coverage, and any professional certifications required. 13. Disclose all
corporate structures, shareholders, and profit arrangements related to
these contractors. D. Policy & Decision-Makers 14. List all individuals,
boards, committees, and advisers who approve or recommend fluoride use in
New Zealand, including councils, Ministry of Health, and public health
associations. 15. Include all corporate affiliations, financial interests,
and advisory bodies that influence decisions regarding fluoride. E.
Compliance, Oversight & Safety 16. Provide copies of all risk assessments,
environmental impact statements, monitoring reports, and internal or
external evaluations regarding fluoride safety, dosing, and public health.
17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities. 18. Disclose any incidents,
complaints, or breaches relating to fluoride chemical safety, handling, or
dosing. F. Global Precedents & Case Studies 19. Provide documented
information on countries that have ceased or restricted water
fluoridation, including Germany, Sweden, Japan, Netherlands, Finland,
Israel, Hungary, and the United States (Utah). 20. Include international
case law, peer-reviewed studies, legal decisions, or environmental
assessments showing health or environmental risks, chemical by-products,
or public health outcomes linked to fluoride. 21. Provide references to
any policy or scientific evidence considered when approving or maintaining
fluoridation in New Zealand Thankypu Sharna
------------------------------------------------------------------- This
is an Official Information request made via the FYI website. Please use
this email address for all replies to this request:
[FOI #32674 email] Is [Ministry of Health request email] the
wrong address for Official Information requests to Ministry of Health? If
so, please contact us using this form:
https://aus01.safelinks.protection.outlo...
Disclaimer: This message and any reply that you make will be published on
the internet. Our privacy and copyright policies:
https://aus01.safelinks.protection.outlo...
If you find this service useful as an Official Information officer, please
ask your web manager to link to us from your organisation's OIA or LGOIMA
page. -------------------------------------------------------------------

Frances Kennedy
Official Information and Privacy Officer
Te Kaunihera o Te Tairāwhiti - Gisborne District Council
E: [6][email address] | P: +64 6 867 2049, 0800 653
800
A: 15 Fitzherbert Street, Gisborne | [7]Web | [8]Fb | [9]App

References

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2. mailto:[email address]
3. https://www.gdc.govt.nz/
4. https://www.facebook.com/gisbornedc
5. https://www.gdc.govt.nz/council/contact-us
6. mailto:[email address]
7. https://www.gdc.govt.nz/
8. https://www.facebook.com/gisbornedc
9. https://www.gdc.govt.nz/council/contact-us

OIA ref: CAS-01982-V4M6K1

 

Tēna koe Sharna,

 

Please see attached our final response to your information request of 20
November 2025.

 

Ngā mihi,

 

[1]Shape, arrow Description automatically generated 

 

Jessie Johnson-Smith [2](she/her) | Governance and Performance Advisor

Ngāti Porou | Ngāi Tūhoe

 

Water Services Authority - Taumata Arowai

Level 2, 10 Brandon Street

PO Box 628

Wellington 6140, New Zealand

[3]taumataarowai.govt.nz

 

From: OIA
Sent: Thursday, 27 November 2025 6:56 am
To: '[FOI #32674 email]'
<[FOI #32674 email]>
Subject: Acknowledgement of your information request - OIA ref:
CAS-01982-V4M6K1

 

OIA ref: CAS-01982-V4M6K1

 

Tēnā koe Sharna,

 

This email acknowledges that the Ministry of Health has transferred parts
of your information request to the Authority, as outlined in their letter
to you dated 26 November 2025. The Authority will now respond to your
request under the Official Information Act 1982.

 

Ngā mihi,

 

[4]Shape, arrow Description automatically generated 

 

Jessie Johnson-Smith [5](she/her) | Governance and Performance Advisor

Ngāti Porou | Ngāi Tūhoe

 

Water Services Authority - Taumata Arowai

Level 2, 10 Brandon Street

PO Box 628

Wellington 6140, New Zealand

[6]taumataarowai.govt.nz

 

 

 

 

If you have received this message in error, please notify the sender
immediately and delete this message along with any attachments.  Please
treat the contents of this message as private and confidential. Ngā mihi

 

 

References

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5. https://www.publicservice.govt.nz/guidan...
6. http://www.taumataarowai.govt.nz/

OIA ref: CAS-01982-V4M6K1

 

Tēna koe Sharna,

 

Please see attached our final response to your information request of 20
November 2025.

 

Ngā mihi,

 

 

[1]Shape, arrow Description automatically generated 

 

Jessie Johnson-Smith [2](she/her) | Governance and Performance Advisor

Ngāti Porou | Ngāi Tūhoe

 

Water Services Authority - Taumata Arowai

Level 2, 10 Brandon Street

PO Box 628

Wellington 6140, New Zealand

[3]taumataarowai.govt.nz

 

From: OIA
Sent: Thursday, 27 November 2025 6:56 am
To: '[FOI #32674 email]'
<[FOI #32674 email]>
Subject: Acknowledgement of your information request - OIA ref:
CAS-01982-V4M6K1

 

OIA ref: CAS-01982-V4M6K1

 

Tēnā koe Sharna,

 

This email acknowledges that the Ministry of Health has transferred parts
of your information request to the Authority, as outlined in their letter
to you dated 26 November 2025. The Authority will now respond to your
request under the Official Information Act 1982.

 

Ngā mihi,

 

[4]Shape, arrow Description automatically generated 

 

Jessie Johnson-Smith [5](she/her) | Governance and Performance Advisor

Ngāti Porou | Ngāi Tūhoe

 

Water Services Authority - Taumata Arowai

Level 2, 10 Brandon Street

PO Box 628

Wellington 6140, New Zealand

[6]taumataarowai.govt.nz

 

 

 

 

If you have received this message in error, please notify the sender
immediately and delete this message along with any attachments.  Please
treat the contents of this message as private and confidential. Ngā mihi

 

 

References

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3. http://www.taumataarowai.govt.nz/
5. https://www.publicservice.govt.nz/guidan...
6. http://www.taumataarowai.govt.nz/

Hello Sharna

Please find attached Ashburton District Council's response to the
transferred parts from your official information request to the Ministry
of Health dated 26 October 2025. 

 

If you have any questions, please let us know.  

 

Kind Regards

 

Euan 

Euan Cox  |  Compliance Advisor - Drinking Water 
DDI 033077868 | M 0275455753

[1][IMG]

 

References

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1. https://www.ashburtondc.govt.nz/

Tēnā koe Sharna

 

Your request partially transferred to us by the Ministry of Health on 8
December 2025 for information regarding the fluoridation supply chain has
been processed under the Local Government Official Information and
Meetings Act 1987 (LGOIMA).

 

Please see below responses to your questions in blue font:

 

 1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator,
and production process. Include all applicable laws, regulations,
licenses, and international standards governing manufacture.

 

Taupō District Council source their fluoride (Hydrofluorosilicic Acid –
HFA) from the company IXOM which is a business for water treatment,
chemical manufacturing and sourcing.  Detail regarding the manufacturing
and production process and compliance with the applicable legislation and
regulations is held by IXOM and available on their website - [1]Fluoride
- IXOM.

 

3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

 

The full chemical composition of fluoride compounds in found on the IXOM
website - [2]Fluoride - IXOM

 

The following fact sheets are available on the IXOM website.

o [3]Hydrofluorosilicic Acid (HFA) fact sheet (PDF, 124kb)
o [4]Sodium Silicofluoride (SSF) fact sheet (PDF, 121kb)
o [5]HFA Safety Data Sheet (PDF, 112kb)
o [6]SSF Safety Data Sheet (PDF, 107kb)

 

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

 

As above, all this information is provided on the IXOM website which
states “All our manufacturing processes are ISO9001 certified, and
National Sanitation Foundation (NSF) accreditation is held for key
chemicals and equipment, ensuring our chemicals exceed the Australian
standards for drinking water, ensuring the well-being of our communities.
IXOM offers quality testing and certificate of analysis to comply with our
customers growing quality requirements.”

 

There is detail on [7]Chemical Risk Management services including risk
assessment, auditing, emergency response planning and services and
training.

 

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

 

The Taupō District Council Water Treatment Operators handle, dose and
monitor fluoride utilised in the water treatment processes.

 

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.

 

TDC’s responsibilities extend to compliance of their own systems for
storage, dosing and handling.  Regulatory compliance, monitoring,
inspections, reporting and auditing is undertaken in accordance with
requirements of the Drinking Water Quality Assurance Rules, specifically,
Section 4.10 – T3 Chemical Rules. For Taupo and Turangi supplies, this
includes continuous monitoring for fluoride of water leaving the treatment
plant, where concentrations are measured and reported automatically at
one-minute intervals. Automated alerts enable the Operations team to
respond to anomalies 24/7. Data and compliance is reviewed monthly with
non-compliant issues notified to the Water Services Authority within 24
hours. Detailed reporting to the Water Services Authority is included in
Annual Quality Assurance Rule reporting.

 

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.

 

TDC staff have checked previous incidents, complaints /breaches relating
to fluoride chemical safety, handling or dosing.  In summary:

 

 1. In 2016 there was an identified issue with safety delivery where a
trained operator was not available to assist with unloading chemical
being delivered
 2. 2009/2010 there was a dosing failure which could have impacted the
amount of fluoride being dosed. The dosing system was turned off until
new automated equipment could be installed.

 

If you believe your request for information has not been adequately dealt
with you may contact the Office of the Ombudsman, and their contact
details are:

 

Phone: 0800 802 602

Email: [8][email address]

Website: [9]www.ombudsman.govt.nz

 

Ngā mihi  

 

Business Support Team - Te Roopu Tautāwhi Ūmanga

 

Taupō District Council • 67 Horomātangi Street, Taupō, 3330

Private Bag 2005 • Taupō Mail Centre • Taupō 3352 • New Zealand

T +64 7 376 0899  E [10][email address]

Follow us on [11]Facebook

[12]www.taupo.govt.nz

 

 

 

From: Tech Support <[13][email address]>
Sent: Monday, 8 December 2025 10:17 am
To: [14][FOI #32674 email]
Cc: Tech Support <[15][email address]>
Subject: Acknowledgement of LGOIMA: Information regarding the fluoridation
supply chain

 

Tēnā koe Sharna

 

We acknowledge receipt of your official information request dated which
has been partially transferred to us by the Ministry of Health on  8
December 2025 for information regarding the fluoridation supply chain, as
detailed below. This request will be processed under the Local Government
Official Information and Meetings Act 1987.

 

We will be responding to the following questions:

1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.

 

3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

 

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

 

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

 

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.

 

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.

 

Given we received the offical partial request today from Ministry of
Health, we will endeavour to respond to your request as soon as possible
and in any event no later than 26 January 2026*, being 20 working days
after the day your request was received. If we are unable to respond to
your request by then, we will notify you of an extension of that
timeframe.

 

* The response date shown takes into account Summer holidays (20 December
to 10 January). [16]Refer to this guide for an explanation of the
statutory obligations.

 

If you have any queries, please feel free to contact us.

 

Ngā mihi

 

 

Business Support Team - Te Roopu Tautāwhi Ūmanga

 

Taupō District Council • 67 Horomātangi Street, Taupō, 3330

Private Bag 2005 • Taupō Mail Centre • Taupō 3352 • New Zealand

T +64 7 376 0899  E [17][email address]

Follow us on [18]Facebook

[19]www.taupo.govt.nz

 

 

 

Dear Ministry of Health,
Request under the Official Information Act 1982 (OIA)
Pursuant to the Official Information Act 1982 (OIA), I am writing to
request full access to all official information held by the Ministry of
Health relating to:

FLUORIDE SUPPLY CHAIN
1. Authority & Purpose
This request is made to obtain complete disclosure of all aspects of
fluoride chemicals used in public water supplies in New Zealand inclusing
all [District/Region]. The purpose is to identify all suppliers,
transporters, contractors, decision-makers, environmental oversight, and
safety compliance, leaving no element undisclosed.
2. Information Requested
A. Supply & Production
1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.
2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities.
3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.
4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.
5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health impacts.
6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand.
7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources.
B. Transport & Logistics
8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.
9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted).
10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances.
C. Contractors & Distribution
11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.
12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.
13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors.
D. Policy & Decision-Makers
14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations.
15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride.
E. Compliance, Oversight & Safety
16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.
17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.
18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.
F. Global Precedents & Case Studies
19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah).
20. Include international case law, peer-reviewed studies, legal
decisions, or environmental assessments showing health or environmental
risks, chemical by-products, or public health outcomes linked to fluoride.
21. Provide references to any policy or scientific evidence considered
when approving or maintaining fluoridation in New Zealand

Thankypu
Sharna

References

Visible links
1. https://www.ixom.com/safety/fluoride
2. https://www.ixom.com/safety/fluoride
3. https://media.ixom.com/images/hwrmiqeyeo...(HFA)%20fact%20sheet%20May%2024.pdf
4. https://media.ixom.com/images/q3zq7at7ok...(SSF)%20fact%20sheet%20May%2024.pdf
5. https://media.ixom.com/images/fx6enqhwq2...
6. https://media.ixom.com/images/n8ltiu7rtz...
7. file:///tmp/Chemical%20Risk%20Management%20services
8. mailto:[email address]
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11. http://www.facebook.com/TaupoDistrictCou...
http://www.facebook.com/TaupoDistrictCou...
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13. mailto:[email address]
14. mailto:[FOI #32674 email]
15. mailto:[email address]
16. https://www.ombudsman.parliament.nz/node...
17. mailto:[email address]
18. http://www.facebook.com/TaupoDistrictCou...
http://www.facebook.com/TaupoDistrictCou...
19. http://www.taupo.govt.nz/

Kia ora Sharna

 

Please find attached the response to your request which was transferred in
part from the Ministry of Health on 5 December 2025.

 

Ngâ mihi

 

 

Mailbox - Information Request
04 296 4700

[1]www.kapiticoast.govt.nz

 

The material in this email is confidential to the individual or entity
named above, and may be protected by legal privilege. If you are not the
intended recipient please do not copy, use or disclose any information
included in this communication without Kâpiti Coast District Council’s
prior permission.

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Tēnā koe | Dear Sharna

 

Please find attached a response to your request for information under
LGOIMA.

 

Ngā mihi | Best regards

Neisha

 

For request(s) for information made under Local Government Official
Information and Meetings Act (LGOIMA)

Email - [email address]

Online -
https://www.horowhenua.govt.nz/Council/D...

 

For request(s) made under the Privacy Act 2020

Email - [email address]

Online -
https://www.horowhenua.govt.nz/Council/D...

 

Please note my days of work are 630am to 3pm, Monday to Friday

You can reach me via my cell phone, Teams or email during work hours

 

MON TUE WED THU FRI
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LGOIMA Officer

Waea Mahi | (06) 366 0999

126 Oxford Street, Levin
Private Bag 4002, Levin 5540

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Dear Sharna,

 LG 2408 - Fluoride Supply Chain Information
The information you have requested is below.

1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture. 
Manawatū District Council (the Council) does not purchase fluoride
chemicals directly from the manufacturing facility and does not hold
records identifying the specific factory or factories where IXOM’s
fluoride products are manufactured, nor the detailed production
processes, licences or international standards applicable to those
facilities.  
What Council does hold and can confirm is that:  

o IXOM is the supplier of fluoride chemicals to Manawatū District
Council.  

o The fluoride product used is hydrofluorosilicic acid (H₂SiF₆),
dosed in accordance with New Zealand public health guidance.  

The detailed manufacturing information requested (specific factory
location, operator, production process, licences, international standards)
is held by IXOM and/or central government agencies, not by Council. This
part of the request is therefore refused under s17(g) LGOIMA (information
not held).  We recommend the requester contact IXOM directly for detailed
manufacturing information, or make a request to the Ministry of Health
/ Manatū Hauora or Taumata Arowai if they require central government
oversight information.   

2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities. 

Council does not hold information on IXOM’s upstream raw-material
suppliers, phosphate rock suppliers, subcontracted laboratories or
blending facilities. Council purchases finished product from IXOM and is
not privy to their full supply chain.  This part of the request is refused
under s17(g) LGOIMA (information not held). IXOM, as the supplier, is
the appropriate source for this information.   

3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply. 

Council uses hydrofluorosilicic acid as the fluoride compound in drinking
water treatment.  
Chemical name: Hydrofluorosilicic acid  
Chemical formula: H₂SiF₆    

+------------------------------------+
| |Process | |
| |Performance| |
|Fluoride|criteria at| |
|Dose    |the |Justification  |
| |Operational| |
| |monitoring | |
| |point   | |
|--------+-----------+---------------|
| | |In accordance |
|Target |>0.7 mg/L |with NZ /World |
|Range   |to <1.0 |Health |
| |mg/L    |Organisation |
| | |guidelines     |
+------------------------------------+

 No other fluoride compounds are intentionally added to the Council’s
drinking water supplies.  

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied. 

Safety Data Sheets (SDS)  Council holds the Safety Data Sheets provided by
IXOM for the fluoride product used (hydrofluorosilicic acid). These SDS
are publicly available from IXOM via their
website - [1]HFA_Safety_Data_Sheet.pdf 

Production records:  Council does not hold manufacturing production
records for IXOM’s facilities. That information is held by the
manufacturer/supplier. This part of the request is refused under s17(g) of
the Local Government Official Information and Meetings Act (LGOIMA),
the information not held by Council. 

Toxicology studies: Council does not hold original toxicology research
studies. Our practice is to rely on assessments from central government
and international health authorities, including:  
Ministry of Health / Manatū Hauora  
World Health Organization (WHO)  
New Zealand drinking water standards and public health guidance  

Toxicology information is available from the Ministry of Health,
Taumata Arowai, and the World Health Organization. This part of the
request is refused under s17(g) as the information is not held by
Council. 

5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health impacts. 

Fluoride is a byproduct of phosphate fertiliser.  Fluoride does not break
down in the water and therefore the concentrations added at the treatment
plant are the concentrations consumed.   
NZ Health and World Health organisation recommend the use of Fluoride to
protect public oral health.  Accordingly the Ministry of Health considers
it safe to consume Fluoride within the specified range.    

6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand. 

Council does not hold information on all corporate entities, owners, and
shareholders involved in the manufacture, import and sale of fluoride
chemicals in New Zealand.  Council’s direct commercial relationship is
with IXOM as a supplier. Council does not have visibility of all entities
and individuals who may profit in the upstream supply chain
(manufacturers, investors, shareholders, etc.).  This part of the request
is refused under s17(g) (information not held). Publicly available company
information for IXOM and other entities may be obtained via the New
Zealand Companies Office and equivalent overseas company registries.  

7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources. 

Council does not hold comprehensive information on national manufacturing
vs importing of fluoride chemicals. We purchase product from IXOM and do
not have detailed knowledge of whether IXOM’s fluoride products are
manufactured in New Zealand, imported, or sourced from multiple locations
at different times.  
This information sits with:  

o IXOM (as the commercial supplier), and  

o potentially with central government agencies (e.g. Ministry of Health,
Ministry of Business, Innovation and Employment, or Taumata Arowai) in
relation to approvals and regulatory oversight.  

Accordingly, this part of the request is refused under s17(g) (information
not held).  

B. Transport & Logistics  

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities. 

Council’s direct interaction is with IXOM, which supplies and delivers
fluoride products to Manawatū District Council’s water treatment plants.
We do not hold a complete list of IXOM’s upstream transport providers
(international freight, shipping lines, or domestic sub-contracted
carriers beyond those engaged for specific deliveries).  We can confirm
that:  

o Fluoride chemicals are delivered to our facilities by IXOM or carriers
acting on their behalf under commercial arrangements.  

o Council does not normally contract separately with
freight, shipping or air transport entities for fluoride chemicals.  

To the extent that information about all transport providers from
production site to distributor is sought, Council does not hold this and
refuses that part under s17(g). IXOM would be the appropriate party to
approach for full supply-chain transport details.  

9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted). 

Shipping manifests & transport schedules:  
Council does not generally receive or retain full international shipping
manifests or complete transport schedules from production facilities to
New Zealand. We hold delivery documentation relating to shipments received
at our sites (e.g. delivery dockets, consignment notes, invoices). If the
requester wishes, Council can search and provide copies of delivery
documentation for a defined time period (e.g. last 12 months), subject to
appropriate redactions for personal information and commercially sensitive
details.  

If you want to limit work, specify a timeframe in your final letter before
agreeing to copy dockets.  

Storage conditions & handling protocols (Council facilities):  
Council holds and follows standard operating procedures (SOPs) for:  

o On-site storage of fluoride chemicals  

o Handling and dosing procedures  

o Health and safety controls (PPE, emergency response)  

These SOPs are internal operational documents developed to comply
with hazardous substances and health and safety legislation and the
supplier’s SDS.   

10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances. 

Council does not licence or regulate transport operators directly. Council
expects IXOM and any carriers engaged by IXOM to operate in compliance
with these laws and regulatory frameworks, and to maintain the necessary
licences and approvals. Council does not hold copies of all licences for
all carriers and therefore refuses that extension of the request under
s17(g).  

C. Contractors & Distribution 

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals. 

Fluoride chemicals at Manawatū District Council water treatment plant are
handled, dosed and monitored by:  

o Council’s own water treatment operations staff (treatment operators),
and  

o Where applicable, specialist maintenance contractors engaged by
Council to work on dosing systems or related plant (e.g. mechanical or
electrical contractors).  

All Council staff who handle fluoride chemicals are trained in chemical
handling and operate under Council’s standard operating procedures and
health and safety policies. We do not routinely outsource the day-to-day
dosing and monitoring function to external water operators.  

12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional
certifications required. 

Council does not hold the specific contract details requested (including
terms of service, duration, performance bonds, insurance coverage, and
professional certification requirements). This information is therefore
refused under section 17(g) of LGOIMA (the information is not held). 

 13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors. 

Council does not hold detailed information on the internal corporate
structures, shareholders, or profit arrangements of IXOM or other private
contractors beyond what appears in publicly available company information
and what is necessary for contract management.  

o Company structure and shareholder information for New
Zealand-registered entities can generally be obtained from the New
Zealand Companies Office.  

o Profit arrangements and internal financial structures are matters for
those companies and not information held by Council.  

This part of the request is refused under s17(g) (information not held).
To the extent any such information is held incidentally and is of a
commercially sensitive nature, it would also likely be withheld under
s7(2)(b)(ii).   

D. Policy & Decision-Makers 

14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations. Unknown

15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride. 

Council holds no information showing corporate affiliations or financial
interests that influence national or regional
decisions regarding fluoridation. Council has no financial interest in
fluoridation and receives no payments or incentives linked to the use of
fluoride; Council’s only relevant commercial relationship is its supply
arrangement for fluoride chemical (hydrofluorosilicic acid) with its
supplier.  

Decision-making/advisory bodies: Decisions about whether a local authority
must fluoridate are made at central government level. Under the Health
(Fluoridation of Drinking Water) Amendment Act 2021, the Director-General
of Health may direct a local authority to add (or not add) fluoride,
and must seek and consider advice from the Director of Public Health
before deciding whether to make a direction. 

E. Compliance, Oversight & Safety 

16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external
evaluations regarding fluoride safety, dosing, and public health. 

Council does not hold environmental impact statements, public health
evaluations, or monitoring reports of the kind requested, as fluoridation
safety/effectiveness evaluations and population-health evidence reviews
sit with central agencies/health authorities rather than Council. This
aspect is refused under s17(g) LGOIMA (information not held). 

Set up WNZ fluoride dosing Hazardous location test certificate – Enviro
Haz – bulk tank 

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities. 

Council does not hold inspection/audit reports specifically about
fluoridation safety or public health outcomes (as distinct from general
drinking-water and hazardous-substances compliance). Taumata Arowai is the
drinking-water regulator and sets compliance/monitoring/enforcement
expectations for drinking-water suppliers. Hazardous substances
requirements sit under the Health and Safety at Work (Hazardous
Substances) Regulations 2017 (with WorkSafe/EPA roles). 

This aspect is refused under s17(g) LGOIMA (information not held). 

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing. 

Council has no records of any incidents, complaints, or breaches relating
to fluoride chemical safety, handling, or dosing for the relevant period. 

Under section 28(3) of the Act, you have the right to ask the Ombudsman to
review any decisions made under this request.  The Ombudsman may be
contacted by email at: [2][email address]  or by calling 0800
802 602.

Manawatū District Council publishes responses to Local Government Official
Information and Meetings Act 1987 (LGOIMA).  We will publish the LGOIMA
response along with a summary of the request on our website.  Requests and
responses may be paraphrased. 

To protect your privacy, we will not generally publish personal
information about you, or information that identifies you. 

If you wish to discuss this response with us, please feel free to contact
the LGOIMA Response Team on 06 323 0000 or by replying to this email. 

Yours sincerely,

 

LGOIMA Response Team
 
P: 06 323 0000
[3]Manawatū District Council logo  
[4]www.mdc.govt.nz

 

This message may contain privileged and confidential information intended
only for the use of the addressee(s) named above.
If you are not an intended recipient of this message you are hereby
notified that any use, dissemination, distribution or reproduction of this
message is prohibited.
If you have received this message in error please notify the sender
immediately and erase all copies of the message and attachments.
Any views expressed in this message are those of the individual sender and
may not necessarily reflect the views of Manawatū District Council.

 

 

From: LGOIMA Shared Mailbox
Sent: Monday, 8 December 2025 9:37 am
To: [FOI #32674 email]
Subject: LG 2408 Acknowledgement partial transfer of request

 

Dear Sharna,

 LG 2408 - Fluoride Supply Chain Information

I am writing to advise we have received a partial transfer of your
official information request from the Ministry of Health, which we
received on Friday 05 December 2025.

We will endeavour to respond to your request as soon as possible, but no
later than 23 January 2026, being 20 working days after the day your
request was received. If we are unable to respond to your request by then,
we will notify you of an extension of that timeframe.

Manawatu District Council publishes Local Government Official Information
and Meetings Act 1987 (LGOIMA) requests and our responses, on our website.
To protect your privacy, we will generally not publish personal
information about you, or information that identifies you. Requests and
responses may be paraphrased. 

Your request is being managed by the LGOIMA Response Team. If you have any
queries, please feel free to contact the LGOIMA Response Team on 06 323
0000 or by replying to this email. 

Yours sincerely,

 

LGOIMA Response Team
l Manawatu District Council l  Private Bag 10001 l  Feilding 4743 l
l Phone: 06 323 0000 l Email:  [5][email address]

 

--------------------------------------------------------------------------

"Our people delivering great service to our community."

 

References

Visible links
1. https://media.ixom.com/images/fx6enqhwq2...
2. mailto:[email address]
4. https://www.mdc.govt.nz/
5. mailto:[email address]

Kia ora Sovereign Sharma.

 

Stratford District Council received a partial transfer of your OIA (Ref:
H2025074650) from the Ministry of Health. Please find answers to the
questions we hold information on at the end of this email. For the
remainder of your questions we hold no information and have to therefore
decline the information request.

 

Original request:

 

FLUORIDE SUPPLY CHAIN

1. Authority & Purpose

This request is made to obtain complete disclosure of all aspects of
fluoride chemicals used in public water supplies in New Zealand including
all [District/Region]. The purpose is to identify all suppliers,
transporters, contractors, decision-makers, environmental oversight, and
safety compliance, leaving no element undisclosed.

2. Information Requested

A. Supply & Production

1. Identify the factory/facility where the fluoride chemicals supplied to
New Zealand water systems are produced, including location, operator, and
production process. Include all applicable laws, regulations, licenses,
and international standards governing manufacture.

2. Identify all upstream raw material suppliers, including chemical
sources such as phosphate rock suppliers, and any subcontracted labs or
blending facilities.

3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

5. Provide details of any chemical by-products, waste, or residues
generated during production, storage, transport, or dosing, including
their environmental and human health impacts.

6. Disclose all corporate entities, owners, and shareholders that profit
from the manufacture or sale of fluoride chemicals in New Zealand.

7. Clarify whether New Zealand currently manufactures fluoride chemicals
domestically, imports ready-made fluoride chemicals, or both, including
details of manufacturers and import sources.

B. Transport & Logistics

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.

9. Provide shipping manifests, including transport schedules, storage
conditions, and handling protocols (personal driver details may be
redacted).

10. Include all applicable laws, licenses, and regulatory frameworks under
which these transporters operate, particularly regarding hazardous
substances.

C. Contractors & Distribution

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

12. Provide full contract details, including terms of service, duration,
performance bonds, insurance coverage, and any professional certifications
required.

13. Disclose all corporate structures, shareholders, and profit
arrangements related to these contractors.

D. Policy & Decision-Makers

14. List all individuals, boards, committees, and advisers who approve or
recommend fluoride use in New Zealand, including councils, Ministry of
Health, and public health associations.

15. Include all corporate affiliations, financial interests, and advisory
bodies that influence decisions regarding fluoride.

E. Compliance, Oversight & Safety

16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.

18. Disclose any incidents, complaints, or breaches relating to fluoride
chemical safety, handling, or dosing.

F. Global Precedents & Case Studies

19. Provide documented information on countries that have ceased or
restricted water fluoridation, including Germany, Sweden, Japan,
Netherlands, Finland, Israel, Hungary, and the United States (Utah).

20. Include international case law, peer-reviewed studies, legal
decisions, or environmental assessments showing health or environmental
risks, chemical by-products, or public health outcomes linked to fluoride.

21. Provide references to any policy or scientific evidence considered
when approving or maintaining fluoridation in New Zealand

 

The Stratford District Council can supply answers to questions 3,4 11 and
17 of your request, as per the table below.

 

Question Details Answer
3 Provide the full chemical Hydrofluorosilicic acid – H2SiF6 –
composition, including added at 22% concentration
chemical names, chemical
formulae, and concentrations
of all fluoride compounds
added to the public water
supply.
4 Provide all Safety Data Sheets SDS attached. No other information
(SDS), production records, and held by Council
toxicology studies related to
the fluoride chemicals
supplied.
5 Provide details of any No information held by Council.
chemical by-products, waste,
or residues generated during
production, storage,
transport, or dosing,
including their environmental
and human health impacts
11 Identify all contractors, Stratford Council’s Plant
consultants, and water Technicians monitor fluoride
treatment personnel who chemical quantities and dosing.
handle, dose, or monitor Ixom supply the fluoride
fluoride chemicals. chemicals.
14 List all individuals, boards, No information held by Council
committees, and advisers who
approve or recommend fluoride
use in New Zealand, including
councils, Ministry of Health,
and public health associations
16 Provide copies of all risk No information held by Council
assessments, environmental
impact statements, monitoring
reports, and internal or
external evaluations regarding
fluoride safety, dosing, and
public health
17 Provide documentation of Drinking water fluoride monitoring
regulatory compliance, results attached in spreadsheet
inspections, or audits by “Stratford District Council
government or third-party Fluoride Sample Test Results”,
authorities. going back to 2010.
18 Disclose any incidents, No information held by Council.
complaints, or breaches
relating to fluoride chemical
safety, handling, or dosing.

 

 

Disclaimer:

Please note that the details of an Official Information Request, including
the name of the individual/organisation requesting the information, may be
made publicly available or used for reporting purposes. If you do not want
your name disclosed, please contact our Privacy Officer on 06 765 6099 or
by emailing [1][email address] and use LGOIMA in the
subject line. We will not disclose the contact details of the requester.

More information about official information requests can be viewed on our
website
here: [2]https://www.stratford.govt.nz/our-servic....

 

Regards

LGOIMA Team

Te Kaunihera a Rohe o Whakaahurangi | Stratford District Council

[3]SDC Email signature

 

 

 

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Kia ora

 

Please see attached response to your recent LGOIMA request.

 

Kind regards,

 

LGOIMA Response Team

WAIPĀ DISTRICT COUNCIL

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Kia ora Sovereign Sharna,

 

Thank you for your LGOIMA request initially sent to the Ministry of
Health, who confirmed with you the partial transfer of parts of the
request to Kawerau District Council.   

 

The following information is provided for the highlighted parts of your
questions, for which Kawerau District Council holds information:

 

o Part of Question 4 – the Safety data sheet for fluoride is attached.
o Part of Question 11 - Water treatment personnel who handle, dose, or
monitor fluoride dose are

o 1 x Team leader
o  
o 3 x Water Operators
o Water Engineer
o Engineering Manager

o Part of Question 16 - With regards to risk assessment for dosing,
attached is the operations manual for the fluoridation plant c/o
Trility.
o Question 17 - Wai Comply’s Drinking Water Quality Performance Audit
for 2024-25 is attached.

 

Please also refer to the responses provided by the Ministry of Health.

 

FLUORIDE SUPPLY CHAIN

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

16. Provide copies of all risk assessments, environmental impact
statements, monitoring reports, and internal or external evaluations
regarding fluoride safety, dosing, and public health.

17. Provide documentation of regulatory compliance, inspections, or audits
by government or third-party authorities.

 

If you have any queries, please don’t hesitate to contact me.

 

Thank you.

 

Nāku i roto i ngā mihi (Kind regards)

Lee-Anne Butler | Group Manager, Finance & Corporate Services | Kawerau
District Council

Waea Phone +64 7 306 9009
Waea Pūkoro Mobile 027 250 3993
Īmēra Email [email address]

Pae Tukutuku [1]Website | Pukamata [2]Facebook |

 

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Kia ora,

 

Please find attached WorkSafe’s response to the partial transfer of your
request under the Official Information Act 1982.

 

Ngâ mihi

Ministerial Services
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[1]LGOIMA Final Response.PNG

Kia ora Sharna,

I refer to your Official Information request transferred in part from
the Ministry of Health on 8 December 2025 regarding Fluoride Supply
Chain Details .

 

Full details of your request have been added to the attached “Response”
letter from Ministry of Health.

Ministry of Health have indicated that the below information is to be
supplied by Waitaki District Council:

“ 3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

17. Provide documentation of regulatory compliance, inspections, or
audits by government or third-party authorities.”

 

Council Officers have reviewed your request and have collated the
answers in red and attached supporting documents. Some of the
information which follows does not completely answer all questions and
is limited to the information available.

 

“ 3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply. Chemical compound information is included on
the attached HFA Safety Data Sheet.  HFA dose rate is 0.8ppm.

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied. See
attached HFA Safety Data Sheet.

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.
Transport company for deliveries is Mainfreight.

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals. Maintenance contractor
is South Roads.  Service contractor is Filtec.  Fluent Consultants peer
review treatment plant performance on a cyclic basis.  Waitaki District
Council Engineers monitor Supervisory Control and Data Acquisition
(SCADA), the computer system used for monitoring and control purposes in
Waitaki District water and wastewater treatment plants, which includes
various fluoride parameters.

17. Provide documentation of regulatory compliance, inspections, or
audits by government or third-party authorities.” Attached Location
Compliance Certificate includes the fluoride facilities and
installation.

 

 

You have the right to seek an investigation and review by the Ombudsman
of this decision. Information about how to make a complaint is available
at [2]www.ombudsman.parliament.nz or freephone 0800 802 602.

 

Pro-active Release Privacy
Please note that as well as In order to protect the privacy of
responding directly to you, Waitaki individuals, we will not generally
District Council may also choose to publish information specific to an
release responses to requests for individual or their property, or
information on the council information that identifies
website. Information requested by the individual requesters.
media, from public sector
organisations and MPs will always be  
published.

If you wish to discuss this information with us, please feel free to
contact [3][email address]  

 

Nāku noa, nā/ Yours faithfully,

 

Case Management Team (LGOIMA)

 

Waitaki District Council [4]Council logo white.png
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Oamaru
Waitaki District
Otago 9444
New Zealand
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confidential and/or privileged material. Any review, retransmission,
dissemination or other use of, or taking of any action in reliance upon
this information by persons or entities other than the intended
recipient is prohibited. If you received this in error please contact
the sender and destroy any copies of this information.

 

 

From: Lgoima <[email address]>
Sent: Monday, 8 December 2025 1:24 pm
To: '[FYI request #32674 email]'
<[FYI request #32674 email]>
Subject: Acknowledgement: OIA 1638 - Fluoride Supply Chain Details
Reference: H2025074650

 

 

 

[9]transferredofrequest.png

Kia ora Sharna,

 

Transfer of request/Acknowledgement for official information

We write concerning an official information request received from
Ministry of Health on 8 December 2025 for Fluoride Supply Chain Details.

 The request has been transferred in part to Waitaki District Council,
specifically questions 3, 4, 8, 11 & 17 of the original request in the
attached correspondence. These being:

“ 3. Provide the full chemical composition, including chemical names,
chemical formulae, and concentrations of all fluoride compounds added to
the public water supply.

4. Provide all Safety Data Sheets (SDS), production records, and
toxicology studies related to the fluoride chemicals supplied.

8. List all companies involved in transporting fluoride chemicals from
production sites to distributors, councils, and water treatment
facilities. Include freight, shipping, and air transport entities.

11. Identify all contractors, consultants, and water treatment personnel
who handle, dose, or monitor fluoride chemicals.

17. Provide documentation of regulatory compliance, inspections, or
audits by government or third-party authorities.”

We hereby acknowledge receipt of your request and will proceed with the
actions necessary to address it promptly.

Please note that we will endeavour to respond to your request as soon as
possible and no later than 26 January 2026, following the statutory
timeframe of 20 working days* after the day your request was received,
as prescribed by LGOIMA.

 

*The response date shown takes into account:

 1. Summer holidays (20 December to 10 January)

 

If we are unable to respond to your request by then, we will notify you
of an extension of that timeframe.

We appreciate your patience and understanding as we work to fulfil your
request.

 

Pro-active Release Privacy
Please note that as well as In order to protect the privacy of
responding directly to you, Waitaki individuals, we will not generally
District Council may also choose to publish information specific to an
release responses to requests for individual or their property, or
information on the council information that identifies
website. Information requested by the individual requesters.
media, from public sector
organisations and MPs will always be
published.

You have the right to seek an investigation and review by the Ombudsman
of this decision. Information about how to make a complaint is available
at [10]www.ombudsman.parliament.nz or freephone 0800 802 602.

 

Nāku noa, nā,/ Yours Sincerely

 

Case Management Team (LGOIMA)

 

Waitaki District Council [11]Council logo white.png
Private Bag 50058 [12][IMG] [13][IMG] [14][IMG] [15][IMG] 
Oamaru
Waitaki District
Otago 9444
New Zealand
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the person(s) or entity to which it is addressed and may contain
confidential and/or privileged material. Any review, retransmission,
dissemination or other use of, or taking of any action in reliance upon
this information by persons or entities other than the intended
recipient is prohibited. If you received this in error please contact
the sender and destroy any copies of this information.

 

 

show quoted sections

Good morning Sharma

 

Thank you for your request for information, which was transferred from the
Ministry of Health. In accordance with the Local Government Official
Information and Meetings Act 1987 (LGOIMA), the Waikato District Council
(Council) has considered your request and I am pleased to provide our
response below.

 

Your Request

Your request was originally made under the Official Information Act 1982
(OIA) to the Ministry of Health and you were seeking extensive information
relating to the fluoride supply chain, including manufacture,
international supply, transport, contractors, decision-making, regulatory
oversight, and international precedents.  Following transfer, Council has
assessed your request strictly within the scope of information lawfully
held by Council and within its statutory functions.

 

Scope of Information Held by Council

The majority of matters raised in your request relate to national policy
development, international and domestic chemical manufacture, upstream
supply chains, importation, and central government regulatory and
oversight functions. This information is not held by Council and sits
outside Council’s role, responsibilities, and operational control.

 

Council’s involvement is limited to the operation of its water treatment
plants and the use of approved treatment chemicals at those facilities.
Council does not manufacture fluoride chemicals, control their upstream
supply chains, determine national fluoridation policy, or hold information
on international practices or case law.

 

Information Held

Council holds limited operational information relating to the chemicals
used at its water treatment plants. This information is provided below.

WTP pH Coagulation Flocculation Chlorination Fluoridation T&O
Correction
Caustic Soda Aluminium Hydrofluorosilicic Powdered
Huntly (NaOH) sulphate Polyelectrolyte Chlorine gas acid (H₂SiF₆) activated
(Al₂(SO₄)₃) carbon
Caustic Soda Aluminium Hydrofluorosilicic Powdered
Ngaaruawahia (NaOH) sulphate Polyelectrolyte Chlorine gas acid (H₂SiF₆) activated
(Al₂(SO₄)₃) carbon
Caustic Soda Aluminium Hydrofluorosilicic
Te Kauwhata (NaOH) sulphate Polyelectrolyte Chlorine gas acid (H₂SiF₆)
(Al₂(SO₄)₃)
Raglan Chlorine gas
Port Waikato Soda ash Polyaluminium Polyelectrolyte Chlorine gas
(Na₂CO₃) chloride
Onewhero Soda ash Sodium
(Na₂CO₃) hypochlorite
Te Aakau Hydrochloric Sodium
acid (HCl) hypochlorite

 

Information Not Held

A comprehensive and reasonable search has been undertaken across relevant
Council business units and record-keeping systems. No records,
correspondence, reports, contracts, approvals, audits, or other
documentation have been identified that relate to the broader matters
outlined in your request, including (but not limited to):

o manufacture or sourcing of fluoride chemicals
o upstream or international supply chains
o transport arrangements beyond Council receipt of product
o corporate ownership or shareholder information
o national or international policy development
o international case studies or legal decisions

 

As you are aware, is not required under the LGOIMA to create new
information, conduct research, or obtain information from third parties in
order to respond to a request, and accordingly pursuant to s17(e) of the
LGOIMA, your request is refused to the extent that the information
requested does not exist or is not held by Council.

 

Other Agencies

As you have already been advised, other agencies such as the Ministry of
Health, other Councils and Watercare may hold information relevant to
specific aspects of your request, and I understand they have entered into
correspondence with you. Each agency is responsible for independently
assessing what information it holds and responding in accordance with its
statutory obligations. Any decisions made by those agencies are outside
Council’s control.

 

This response reflects Council’s best and reasonable efforts to identify
and provide information within scope, and I trust the information provided
is of use to you. Accordingly, I am satisfied that Council has met its
obligations under the LGOIMA, and I shall progress to close my file.  If
you are dissatisfied with this decision, you have the right to request a
review by the Office of the Ombudsman. Information about this process is
available at www.ombudsman.parliament.nz or by calling 0800 802 602.

 

As always, please don’t hesitate to reach out if there is anything further
I can assist you with.

With many thanks

 

Alison Baxter
Official Information and Delegations Advisor
Waikato District Council
Te Kaunihera aa Takiwaa o Waikato

Nama waea: 07 824 8633 |  Waea puukoro: 0800 492 452
Poutaapeta Mahi: Private Bag 544, Ngaruawahia 3742
Waahi Mahi: 15 Galileo Street, Ngaruawahia
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Hello Sovereign Sharna,     

 

Official information request on fluoride

 

I refer to your official information request dated 05/12/2025 for
information about fluoride in the water supply, and chemicals, contracts,
and regulatory documentation. Parts of your initial request to the
Ministry of Health were transferred to the Thames Coromandel District
Council to provide information.

 

Please see Council’s responses to your questions below.

 

 

Questions

 

Responses

o Item 3

o Fluorosilicic Acid (21-23%): H₂SiF₆ made up of

o Hydrofluoric acid (0.1-<1%): HF
o Water (to 100%):  H₂O

o Dosing at the WTP is set to achieve a residual of around 0.7 mg/L, on
average in the network when the dosing is on it has been 0.5-0.6 mg/L
(results from Watercare sample analysis).

o Item 5

o There are no notable disinfection byproducts (DBP's) or residues
associated with the dosing of Fluoride

o Item 15

o No - we take direction from MoH

o Item 16

o We are unable to find any data on assessment done previously
before Fluoride was added to Thames in ECM
o We monitor fluoride levels as per example of data extracted for
2024 year (attached)

o Item 17 –

o We operate under the Drinking Water Quality Assurance Rules
(DWQAR).
o Due to the small size of the storage facility on site it does not
require regular external audits for storage compliance, therefore
no documentation is available.
o We report to Taumata Arowai in our annual DWQAR reporting

o Item 18

o No breaches reported to date.

o Item 20

o We do not have any of this information

 

 

Ngā mihi / Kind regards

 

Corporate Services

 

Thames-Coromandel District Council

Private Bag 1001, 515 Mackay Street, Thames

p: 07 868 0200 

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w: [2]www.tcdc.govt.nz

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