The operators of a dump near Pollardstown Fen in Co Kildare, where wetlands of national and international importance are located, told the High Court yesterday they are to cease dumping there.
Mr Michael Munnelly, the registered owner of the dump site, and his son Padraig, undertook only to carry out remedial works at the site, near the Curragh.
Those works include covering existing material on the site with topsoil.
The undertakings were given after the Environmental Protection Agency moved yesterday morning for an order to prevent dumping at the site.
Ms Nuala Butler, for the EPA, opposed an application on behalf of the Munnellys for an adjournment and claimed conditions attached by the EPA following an earlier court hearing over the operation of the site had been breached.
The type of waste being dumped was not in accordance with the conditions and there had been correspondence with the respondents about this, she said. The conditions also required the respondents to drill bore holes on the site and this had not been done.
When the matter came before Mr Justice Kelly later yesterday afternoon, Mr Patrick Butler, for the Munnellys, said his clients were prepared to give a number of undertakings.
Mr Justice Kelly said the EPA had last Wednesday secured leave to re-enter the matter on the grounds that conditions attached to the dump's operation had not been complied with.
The Munnellys had come to court and had undertaken that there would be no further dumping on the site "in perpetuity" and the only works there would involve covering existing material with topsoil already on the site or additional topsoil.
Mr Justice Kelly said the EPA accepted these undertakings and failure to comply with them would leave the respondents liable to contempt.
The judge said he had thought that would dispose of the EPA's proceedings against the Munnellys but the agency wished to proceed with the full hearing next month because of other complaints. The EPA was also concerned that the topsoil cover might be insufficient protection.
He also noted that there was no objection by the respondents to EPA officials supervising and monitoring the remedial works to take place or to their entering onto the site to carry out tests for the full court hearing.
Mr Butler indicated to the court that his clients might seek to adjourn that full hearing on the basis that other legal proceedings were in being. The judge asked that any such application be made as soon as possible and that the EPA be notified.