The cost of assessing and cleaning up plastic pollution caused by construction work in Dun Laoghaire will be handed to the developer, the local authority has said.
A massive clean-up operation is continuing after millions of needle-like plastic shards washed ashore last Friday after work at nearby Dun Laoghaire Baths.
The SIAC and Mantovani group, who secured a €10m contract to redevelop the site in April this year, have been in talks with the council and investigations into the environmental impact are under way.
Dun Laoghaire-Rathdown County Council said the work had now been halted and all costs incurred from the clean-up would be referred back to the company.
"The council wish to advise the public they will be recouping all public costs associated from SIAC/Mantovani," it said in a statement.
"The council have stopped all works at the Dun Laoghaire Baths site temporarily."
Tests on water quality and the impact on wildlife were completed by the contractor last weekend who said "all visible fibres" had been removed.
"Teams have inspected the shoreline from Dalkey Harbour to the East Pier, where a small quantity of fibres were retrieved on Sunday," it added.
"Divers have also inspected the deeper areas adjacent to shore and rock pools and have found nothing."
However, local residents have raised concerns over the volume of fibres that were released into the water and the long-term effects it will have on the area and its wildlife.
Fianna Fail councillor Cormac Devlin said there was a risk the plastic would be washing up for weeks to come.
"These are going to continuously wash up and the contractor needs to deploy enough resources to this on an ongoing basis," he said.
"I don't think it shouldn't have happened.
"I accept mistakes happen but given the expertise involved in this project I am extremely surprised.
"I am really surprised something like this could happen on the watch of a contractor who allegedly has so much experience."
A spokesperson for the Environmental Protection Agency said it was available to provide help and assistance to the local authority but had so far not been asked.