Clean, treated water
Wellington's drinking water supply is collected and treated by the Greater Wellington Regional Council (GWRC).
The GWRC operates four water treatment plants located in the Hutt Valley (Te Marua, Waterloo, Gear Island and Wainuiomata). These plants supply water for use in Upper Hutt, Lower Hutt, Porirua and Wellington City.
Wellington city's water supply contains added fluoride for dental health, with the main beneficiary being younger children.
The natural level of fluoride in Wellington's water is around 0.1 milligrams per litre or parts per-million (ppm). The Ministry of Health recommends water suppliers adjust the fluoride amount to between 0.7 and 1.0 ppm. The addition of fluoride is made at the GWRC water treatment facilities at the Te Marua, Wainuiomata and Waterloo treatment plants.
The guidelines from the Ministry of Health state that there are no significant health concerns associated with water fluoridation at the optimal level for dental health, and the Council follows these guidelines.
Related Links
Department Details:
Capacity Infrastructure Ltd
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