'No timeline or cost' for clean-up plan of one of Europe's largest illegal dumps

News imageGetty Images A pile of scrap metal and rubbish lie in a huge pile. There is a clear blue sky above the rubbish pile.Getty Images
The contaminated Mobuoy dump is thought to cover more than 100 acres of land (stock image)

There is still no timeline, cost estimate or guarantee of the money needed, for the clean-up of one of Europe's largest illegal landfill sites, politicians have said.

The contaminated Mobuoy dump at Campsie in County Londonderry, discovered in 2013, was used to bury thousands of tonnes of rubbish at a site spanning more than 100 acres.

Last year, two businessmen were jailed for their part in the operation.

Environment Minister Andrew Muir recently met local politicians to update them on the planned remediation of the site but SDLP MLA Mark H Durkan, a former environment minister, said he was "disappointed" by the lack of new information.

"Obviously cost is where the focus is going to be," he told BBC Radio Foyle's North West Today programme

"We have no estimated cost, no estimated timeline and there is no guarantee that this work is going to be done."

News imageMark H Durkan is wearing a suit and tie. His blazer is navy, shirt is white and his tie is green and white stripes. He has facial hair. Behind him are the walls of Derry and a red brick building. There is a paved grey path and green grass between him and the walls. In the distance we can see a large stone church tower.
SDLP MLA Mark H Durkan was among local representative to meet the minister last week

Clean-up bill could be over £100m

The figure for the potential repair bill is contained in 2022/23 accounts from the Department of Agriculture, Environment and Rural Affairs (Daera), which were published in February 2024.

At the time, officials estimated the cost at between £17m and £700m - however, that top figure would only apply if all of the waste was dug up and transported elsewhere, which is not what Daera is planning to do.

The most recent estimate stands at £107m to clean up the site using a range of pollution prevention measures.

However, that £107m figure is a "point in time" estimate, which is likely to rise the longer it takes to finalise the proposals and put them into action.

Durkan said: "I'm not laying the blame at the minister's door, I do think they have been pretty proactive and are keen to get this done."

Over 1.5m tonnes of waste

News imageMartin McKeown Two men. The one on the left is wearing a white shirt under a dark zip-up top and light blue trousers. He is wearing a watch on his left wrist and carrying a mobile phone in his right hand. The man on the right is wearing a blue and yellow striped shirt with the sleeves rolled up under a zip-up grey sleeveless top. He has a silver bracelet on his right wristMartin McKeown
Gerard Farmer (left) and Paul Doherty were sentenced in June 2025

Investigations at the Mobuoy site indicate an estimated 1.6m tonnes of waste was present at the site and 627,000 tonnes of that was believed to have been dumped illegally.

The area of polluted ground stretches to about 100 acres, or the equivalent of about 65-70 football pitches.

Some of the rubbish dates back as far as the 1960s but the illegal waste was linked to two businessmen who were jailed for their role in the scandal in June last year.

Paul Doherty, 67, of Culmore Road, Londonderry, admitted seven charges between 2007 and 2013 relating to the contaminated dump and was sentenced to one year in prison.

Co-defendant Gerard Farmer, 56, of Westlake in Derry, pleaded guilty to three charges between 2011 and 2013 and was jailed for 21 months.

The judge at Londonderry Crown Court said both defendants had "acted deliberately" and been "entirely motivated by financial gain".

Cost estimate 'critical' next step

News imageA woman with shoulder length blonde hair looks into the camera. She is wearing diamond earrings and a red jacket with a white top. She is standing in front of a low wall and in the background is a green area with trees.
Sinn Féin's Ciara Ferguson says without an estimated cost no funding application can be made

Sinn Féin MLA Ciara Ferguson, who also attended Friday's meeting, said that cost estimate was the "critical" next step in the process.

"They need to ensure that it's evidence based and is robust," she told BBC Radio Foyle.

She said no formal bid for funding could be made until that estimate is completed.

"They would hope to have that complete by the summer and submit it to the minister," Ferguson said.

Speaking after Friday's meeting Muir said it had been a " constructive engagement" and followed a public consultation on the site's remediation.

"I remain eager to progress the plans for remediation and can confirm we will now be moving towards adoption of the final remediation strategy including obtaining an updated cost estimate for delivery of the remediation," Muir said.

"This will then enable us to develop and put forward a formal business case in relation to remediation works as per required processes."