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Question 3609 (2026)
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Asked by
Lan Pham
List MP · Green Party
Question
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How many, if any, breaches of the Maximum Acceptable Value of nitrate in drinking water were found in 2025?
Answered by
Hon Simon Watts
Member for North Shore · National Party · Minister of Local Government
Answer
The Water Services Authority - Taumata Arowai, received the following notifications of Maximum Acceptable Value (MAV) exceedances for nitrate in drinking water during the 2025 calendar year: • 3 notifications of nitrate MAV exceedances submitted in 2025 for publicly registered supplies • 4 notifications of nitrate MAV exceedances submitted by laboratories in 2025 in relation to publicly registered supplies