DÚN LAOGHAIRE RATHDOWN County Council have banned bathing on Killiney and White Rock beaches.
The ban on these two beaches follows Dublin City Council’s ban on swimming on Sandymount Strand earlier today.
The notice follows the results of samples taken today which showed a high levels of E. Coli and Enterococci contaminants.
E. Coli is a fecal coliform that occurs in the intestinal flora of both animals and humans, while Enterococci are normally from the intestinal tracts of animals, birds and humans.
The cause of these high levels are not known and an investigation has commenced.
The Blue Flag is being removed from Killiney pending the outcome of this investigation.
The water at both locations has been resampled and the results are expected back on Friday.
If the re-sample results are acceptable the temporary prohibition notice will be removed.
While in White Rock there were also 16 samples and all were classified as “Excellent” quality.
Fianna Fáil Councillor Cormac Devlin urged parents to be cautious and not allow their children enter the water until the all clear had been given.