The EPA says there is a need "for significant funding" to address underinvestment
A new report has found untreated sewage from the equivalent of 120,000 people across 44 areas still enters our waters each day.
The Environmental Protection Agency (EPA) says waste water treatment at 50 of Ireland’s 185 large towns and cities also fail to comply with standards set to prevent pollution and protect public health.
It says plans to install treatment at some of these areas is delayed by up to three years, and most will not be completed until 2021.
While four bathing water areas were deemed 'unsafe for swimming' due to health risks caused by sewage.
The report highlights the need "for significant funding to address the legacy of underinvestment in infrastructure needed to collect and treat our waste water effectively."
The report finds that treatment is inadequate in many areas.
Commenting on the report Gerard O'Leary, director of the EPA’s Office of Environmental Enforcement, said: "Wastewater from over half our population failed to meet environmental standards.
"For many years Ireland failed to address the deficiencies in wastewater treatment.
"Substantial and sustained investment is now required to protect our valuable waterways and protect public health."
It says waste water is one of the "principal threats" to water quality in Ireland.
The EPA has identified the following as the priority areas:
Three areas where disinfection of waste water is required to safeguard shellfish habitats
Darragh Page, programme manager of the EPA’s Office of Environmental Enforcement, added: "Ireland’s environment is at risk because waste water is not treated to the necessary standards, even though the final deadline to meet these standards was 2005.
"New or upgraded treatment systems are required in some areas.
"In other areas, there is already sufficient treatment capacity in place, but the management of the treatment systems needs to improve."
Read the report in full here