NI Water reassures customers over drinking water safety after traces of cryptosporidium found in supply
Northern Ireland Water has moved to reassure customers about the safety of drinking water after traces of a parasite - which can cause respiratory and gastrointestinal illness - was found in the supply.
The agency, which did not specify which water treatment works has been affected, said its testing procedures flagged "early warnings in relation to water quality for cryptosporidium".
NI Water said it "implemented a tried and tested incident procedure in full consultation with Public Health Agency (PHA)."
It said it took "appropriate action and in consultation with the PHA ensured that there was no requirement to issue any precautionary advice to customers".
A NI Water spokesman said: "It is important to emphasise that water samples are used to give early warnings to NI Water and do not automatically require further action by the public to change how they use their water.
"Therefore, we can reassure the public that every measure has been, and will continue to be, taken to safeguard their water supply and maintain high drinking water quality for Northern Ireland".
He added: "Drinking water being provided to customers does not pose a risk to health and can be used in the normal way. If we ever need to ask you to change the way you use water in your home, we will issue the required advice.
"NI Water have a robust testing and sampling system which sees over 120,000 samples lifted and analysed each year.
"Samples are analysed by a team of scientists based in laboratories in Belfast and Altnagelvin, providing NI Water with its own in-house scientific expertise and knowledge.
"Monitoring provides an early warning to highlight any issues that might be unfolding with drinking water quality".