Dear Taumata Arowai–the Water Services Regulator,

I am writing to request information under the Official Information Act 1982. My request is as follows:

Current and Historical Use of Chloramines by Water Suppliers in New Zealand:

- Please provide details of any water suppliers in New Zealand that are currently using chloramines as a disinfectant in their water supply.

- Please provide details of any water suppliers that have used chloramines in the past, even if such use was sporadic or temporary.

Regulatory Stance on Chloramination:

- If chloramines have not been used by any water suppliers in New Zealand to date, please provide information on whether chloramination is an acceptable means of water disinfection under current New Zealand regulations.

- Please also clarify if there is a possibility that chloramination could be adopted as a water disinfection method in the future, according to current regulatory guidelines and policies.

Please provide any supporting documents, reports, or communications related to the use of chloramines in New Zealand's water supply and the regulatory stance on this disinfection method.

Thank you for your assistance in this matter. I look forward to your response.

Yours sincerely,

Mr Davies