A boil water notice has been lifted for consumers on the Kill/Ballylaneen public water supply.
The restrictions have been in place since November 9th.
Around 1,200 people in the Kill, Ballylaneen, Bunmahon, Ballyvadden and Annestown areas were forced to boil water before use after a microscopic parasite called cryptosporidium was detected in the supply.
Irish Water and the local authority say that "following the receipt of satisfactory monitoring results" normal use of the water supply can now resume for drinking, food preparation and brushing teeth.
The decision to lift the notice follows consultation undertaken with the Health Service Executive.
In a statement Irish Water said they and the Waterford City & County Council - Health Service Executive Water Local Liaison Group "will continue to meet and review ongoing process control, monitoring and testing of the drinking water supply.
"The Irish Water Customer Contact Centre (1850 278 278) is available to answer customer queries in relation to the lifting of this notice. Further information is available on www.water.ie.
"Irish Water and Waterford City & County Council acknowledge the patience, cooperation and assistance of affected consumers during the period of the Boil Water notice and greatly regrets any inconvenience caused to householders and the business community."