The beach at Portmarnock in north county Dublin has been closed to swimmers.
The closure is likely to last until the weekend, according to Fingal County Council.
A swimming prohibition notice was put in place for Velvet Strand on Monday after a wastewater pumping station overflowed during heavy rainfall on Sunday, causing a potential deterioration of water quality at the bathing site.
The HSE was consulted and warning signs about the closure have been erected at the beach. The swimming ban is likely to last for five days and the taking of water samples will be arranged before the water is reopened to swimmers.
RM Block
According to Fingal County Council, the beach will remain open, “but beach users are asked to respect the ‘Do Not Swim’ notice as it has been put in place to ensure that the health of bathers is not compromised”.