19 December 2025  
File Ref: OIA-251267 
 
Sharna Sovereign  
[email address] 
 
 
Dear Sharna, 
 
I refer to the partial transfer of your request under the Official Information Act (the Act) 
received by WorkSafe from the Ministry of Health on 26 November 2025. You requested: 
 
18. Disclose any incidents, complaints, or breaches relating to fluoride 
chemical safety, handling, or dosing. 
 
Requested Information 
 
Given that no timeframe was specified, WorkSafe has provided information dating back 
to 2018. 
 
I can confirm that WorkSafe has received 4 notifications relating to incidents, 
complaints, or breaches relating to fluoride chemical safety, handling, or dosing. Please 
find further information in the table below: 
 
 
Date 
Description 
1. 
November 2018  
Suspected leak at water treatment plant 
2. 
June 2019 
Vacuum cleaner caused fluoride dust cloud 
3. 
December 2020  
Incorrect labelling of bifluorides 
4. 
September 2024 
No compliance certification for storage of fluoride powder 
 
 
This reply addresses the information you requested. You may ask the Ombudsman to 
investigate and review this decision, and further information is available at 
www.ombudsman.parliament.nz.   
 
If you require further assistance, please contact [email address]. 
 
 
Yours sincerely 
 
 
 
Rob Pope 
Head of Inspectorate 
PO Box 165, Wellington 6140 
 

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