Two dozen separate appeals have been lodged with An Bord Pleanala by groups and individuals objecting to Meath County Council's decision in July to grant planning permission to Indaver Ireland for a waste-management facility, including an incinerator, near Drogheda.
One of the appellants is Indaver Ireland. It is appealing two parts of one of the 30 conditions attached to the planning permission.
The closing date for objections was Thursday evening, and yesterday officials at An Bord Pleanala were checking each appeal to ensure it was valid.
The group No Incineration Alliance (NIA), which is opposed to incineration as a means of waste disposal on health and environmental grounds, confirmed it had also lodged a objection and was now calling on individuals and groups to make written observations to An Bord Pleanala.
"If An Bord Pleanala decides to hold an oral hearing on the matter, only people who have lodged an observation are allowed to speak," said Mr Michael McKeon, a member of the NIA and the Louth Green Party.
Elected members of Drogheda Corporation also lodged an appeal and asked for an oral hearing. Individual members of the corporation contributed towards the £180 fee after they were told that the corporation as a body could not make such an appeal.
A spokesman for Indaver Ireland said it was appealing two parts of condition No 3. The first part specifies that waste treated at the facility must be strictly limited and confined to waste generated and produced in the north-east region.
The second requires people using the recycling park to complete a waste certificate which details the origin, weight and collection method of materials brought to the plant.
Indaver Ireland is concerned this could act as a disincentive for local residents to recycle waste.