Informative alert

Have your say on proposed updates to the Drinking Water Quality Assurance Rules

We’re consulting on proposed changes to the Drinking Water Quality Assurance Rules to make compliance clearer and easier to follow for large supplies (those serving 501 or more people), while maintaining strong public health protections. Find out more and have your say on our consultation site. https://korero.taumataarowai.govt.nz/regulatory/rules-review-large-supplies/

Severe alert

Hinekōrako Outage

Hinekōrako will be offline Thursday 27 November from 5pm-7pm for regular maintenance. Find out how to contact us during this time. Hinekōrako outage

Home
Learning hub

Learning hub

Definitions and explanations of water-related terms - covering the microbiological and chemical components and physical properties of water, testing, treatment and compliance.

  • Water properties
    Explore key terms and concepts that describe water’s physical properties.
    Find out more
  • In the water
    Find out what’s in drinking water – from minerals to microbes – and how risks are controlled for health protection.
    Find out more
  • Water sources, monitoring and treatment
    A guide to the terms and processes behind how water is collected and treated.
    Find out more
  • Compliance mechanisms
    A guide to the mechanisms that drinking water suppliers can use to ensure their communities receive safe drinking water.
    Find out more
Last updated: 8 September 2025