Locals have been warned about a potential odour as maintenance is carried out at the Ringsend Sewage Plant.
The work will involve cleaning the storm water holding tanks which currently contain a large amount of debris following the heavy rainfall last month.
The tanks will be washed down manually with maintenance set to take around a week.
John O’Donoghue, regional operations lead with Irish Water, said: “Due to the warm weather, it is essential that we act quickly to clean out the tanks to deal with current odour issues and to reduce the risk of odours over the summer months, from the debris left after the recent rainfall events.
“Unfortunately, the process of removing the debris from the tanks may create a certain amount of odour and Irish Water apologises to people in the area for any inconvenience caused.”
Meanwhile the EPA carried out an inspection of the wastewater treatment plant on Tuesday after a video emerged of “brown coloured plume” being pumped into Dublin bay.
While the plant was said to be operating as normal, the discharge was attributed to the overloading of the plant.
It is designed to treat waste water from a population equivalent of 1.64 million.
However, the load entering the plant comes from a population equivalent of approximately 2.3 million.
A spokesperson for the EPA said: “The overloaded plant was operating as normal, there was no recent breakdown or failure of equipment at the plant, and all waste water was passing through the treatment process.
“The plume was attributed to the overloaded plant not being capable of consistently treating the waste water to the required standards.
“The EPA took a sample of the waste water being discharged from the plant. The results from the analysis of this sample are expected next week.
“Waste water discharged from the plant is breaching, and will continue to breach, the quality standards until the upgrade works are complete.”
Upgrades for the plant are due to be completed between 2020 (phase 1) and 2023 (phase 2).
