A precautionary boil water notice has been put in place for Barndarrig.
The notice was issued as a result of a mechanical failure of the chrlorination system at the Barndarrig Water Treatment Plant.
Irish Water has said they cannot guarantee that the drinking water entering the Barndarraig PWS is adequately disinfected.
All those supplied by the Barndarrig PWS are affected by the notice with immediate effect as a precautionary measure.
A map of the affected areas, detailing properties affected, is available on www.water.ie or call 1890 278278 for further information.