A Do Not Swim notice for Balbriggan's Front Strand beach has been extended due to continued high levels of bacteria.
Since July 25, "elevated bacterial results" have been found from seawater sampling and beachgoers have been told to avoid swimming at the beach.
Fingal County Council said that initial investigations found no visible signs of pollution or network issues. River monitoring at the River Bracken has been conducted on scheduled bathing water sampling dates since the start of the bathing season, June 1.
