Photo: AFP
Hamilton City Council has issued a boil water notice for the Rototuna water supply after a single positive E.coli test result was confirmed in routine testing.
"We immediately established an Incident Management Team, notified the regulator Taumata Arowai, and are conducting further tests and checks across our network," the council said.
Rototuna residents were advised to boil water before using it until further notice.
The notice will be in place for at least three days.
Further testing was underway at the reservoir and throughout the network.
A map showing the area affected by the boil water notice. Photo: Supplied / Hamilton City Council
The water needs to be boiled before drinking it, including making sachet juice or drinks, making ice, food preparation, brushing teeth, preparing infant or toddler formula.
"Electric jugs with a cut-off switch can be used as long as they are full - allow the water to come to the boil and wait for it to switch off (do not hold the switch down to increase the boiling time). Water can also be placed in a clean metal pan and brought to a rolling boil for one minute. Boiled water should be covered and allowed to cool in the same container."
Infants and elderly people, anyone with a severely compromised immune systems, or who is pregnant may be at increased risk, the council said.
These people should seek advice about drinking water from their health care providers, it said.
