Traces of contamination found in Havelock North’s water supply pose no risk to human health, residents have been assured.
Hastings district council started treating the water supply with chlorine on Thursday after traces of contamination were found during routine testing.
The traces of contamination were very low and posed no threat to human health, however all such incidents had to be treated and investigated to find the source, said Hastings District Council water services manager, Brett Chapman.
The treatment is expected to last about a week and council will keep residents updated.
Council said it wanted to alert Havelock North residents as soon as possible, as it was aware that some people have a low tolerance to the taste of chlorine.
The advisory would hopefully allow those people to source their drinking water from an alternative source in the interim, council said.