Question 41050 (2026)
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Asked by
Lan Pham
List MP · Green Party
Question
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Where, if anywhere, are drinking water supplies currently facing additional monitoring requirements for nitrate as a result of exceeding half of the Maximum Acceptable Value for nitrate in drinking water?
Answered by
Hon Simon Watts
Member for North Shore · National Party · Minister of Local Government
Answer
All registered supplies with source water exceeding 50 percent of the MAV for nitrate are required to undertake additional nitrate monitoring. When nitrate levels in treated drinking water exceed the MAV, the supplier and the laboratory…