A Boil water notice has been issued for businesses and customers supplied by the Knock Airport Public Water Supply.
Following advice from the HSE, Irish Water and Mayo County Council the notice has been put in place.
This also affects Cloonlyon Group Water Scheme along with Knock Airport, Cloonlyon National School and approximately 15 households.
The Boil Water Notice has been put in place following the detection of cryptosporidium in the Knock Airport Public Water Supply.
Irish Water drinking water compliance and operational experts are working with colleagues in Mayo County Council to resolve this situation as soon as possible. Irish Water and Mayo County Council will continue to liaise with the Health Service Executive with a view to lifting the Boil Water Notice as soon as practicable.
In the meantime, all customers of this supply are advised to boil water before use until further notice.