Farmer Thomas Reid is seeking to bring a High Court challenge to An Bord Pleanála's go ahead for computer chip giant Intel Ireland's €3.6 billion expansion in Leixlip, Co Kildare.
In 2015, Mr Reid won a landmark Supreme Court decision against the IDA over the use of compulsory purchase orders for his 72 acre Hedsor House farm which is next to the current 120 acre campus in Leixlip. Under the expansion plan, the facility's acreage will increase by another 30 acres.
He claims the board's approval decision was "rushed", in error in law, and should be quashed.
On Friday, Mr Justice Charles Meenan gave permission to his lawyers to bring an application for judicial review next month against the board with Intel as a notice party.
It is claimed by Mr Reid that as part of its manufacturing process for IT equipment materials, toxic chemicals like ammonia, helium, hydrochloric acid and argon are stored in bulk tanks at Intel.
He says it is common case that there is a risk to the adjacent Rye River Valley/Carton special area of conservation from emissions from the manufacturing process if they are not properly mitigated. In the event of a major accident a chemical leak into the River Rye could have a significant effect on four other protected Habitats Directive sites connected with the River Liffey, it is claimed.
Under the Seveso III Directive, Intel was required to provide sufficient information on the risk to humans and environment from emissions in the event of an accident. Intel had provided information on the risks to humans but only limited information on the impact on the environment, it is claimed.
Mr Reid, in an affidavit, claims the board's inspector dealing with the Intel planning appeal erred on a number of grounds.
He claims the application involves a doubling of the plant area of Intel and will result in buildings just across the road from his farm.
Intel failed to consider alternative sites including lands it bought south of the existing campus in 2018. This land was not considered at all because, he says, Intel claimed that land was only purchased after design work on the current plan had been progressed.
Construction work on the new plant is expected to take four years, including two years of breaking out and removing some 647,000 square metres of rock to a depth of 17 metres. This would be akin to the workings of a major rock quarry, he says.
The nuisance and vibration from this rock breaking for two years or longer would breach normal noise limits though Intel is proposing "more liberal limits" as part of its plan, he says.
Some 6,000 workers will be involved in the construction but there will be only 500 car parking spaces on the site, he says. While Intel says "remote parking" will be encouraged and strict policies will be in place to prevent nuisance parking, Mr Reid says no assessment had been made of this.
Mr Reid says Intel, in its own appropriate assessment accompanying the planning application, said accidental pollution has a potential to affect river and aquatic environments up to 20 kilometres away. The assessment however does not provide information on the effect of emissions to the air as a result of an accident, he says.
Another Intel report on the impacts on the natural environment and plant life had errors and omissions, he says.
It is also claimed the board failed to properly consult with the Health and Safety Authority in relation to major accidents.
It is further claimed power consumption at the plant will more than double from the extension.