What does Aa grade mean?
What we test for?
Parameters such as pH, turbidity and disinfection criteria are measured continuously at the water treatment plant to ensure treatment processes are operating well. The bacteriological quality of the water is also tested daily at sites throughout the Hamilton supply network.
Compliance data is submitted to the Waikato District Health Board Drinking Water Assessor through a national database to ensure an independent verification of this compliance. This information is then reported nationally by the Ministry of Health as part of the “Annual Review of Drinking Water Quality in New Zealand".
Additional testing for chemicals of health significance or for those that can affect the aesthetic quality of water (taste, odour and appearance) is carried out regularly at the water treatment plant and in the reticulation network to provide additional assurance that Hamilton’s water quality remains high.
For more information on health standards related to drinking water in New Zealand or for the latest Annual Review of Drinking Water Quality in New Zealand Report see Drinking-water - Ministry of Health
Is Hamilton's water soft or hard?
Run a Mug