140 Households Sue Over Hafod Landfill's Rotting Stench
🤖 AI Generated ImageMore than 140 households have joined a group legal action against the operators of a landfill site that residents say has smelled of rotten eggs and burning gas for 18 years.
The claim follows a Senedd inquiry that confirmed what those households had been reporting for nearly two decades.
What the Senedd Inquiry Actually Found
The Petitions Committee report, published in January 2026, examined monitoring data from Hafod Landfill in Johnstown, near Wrexham.
That data showed clear breaches of the World Health Organisation's nuisance odour threshold — though the committee stopped short of calling it a risk to public health.
The petition that triggered the inquiry had been signed by 1,125 people and described the site as causing "community distress" for 18 years, calling it Wales' longest-running environmental campaign, according to the official Senedd petition record. Families in Johnstown, Ruabon, and Rhos are now pursuing the case in court.
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What Residents Are Actually Claiming
Legal firm Hugh James is representing the group, framing the action as a claim for loss of enjoyment of homes and gardens — not an attempt to shut the site down.
Stephanie Eedy, Partner in the firm's Environmental team, said some clients describe the smell as "a very strong gas and rotting stench," while others compare it to "rotten eggs and burning."
Eedy said the odour has forced residents to cancel outdoor gatherings and avoid hanging washing outside, since the smell lingers on clothing left out in it. According to Wrexham.com's reporting, she described the firm's goal as accountability and fair treatment, not threatening local jobs tied to the site.
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🤖 AI Generated ImageThe Data Access Problem Residents Say Is Hiding the Real Picture
The site holds an environmental permit to operate until 2062 — meaning residents could be living with the same problem for another 36 years if nothing changes.
Lead campaigner Steve Gittins says the bigger issue isn't just the smell. It's that residents can no longer verify it.
Gittins said the air quality data Enovert is required to publish on its citizens page has been unavailable for two months, blocked behind a login residents don't have access to. He also flagged that real-time air sampling from AQ Mesh pods around the site's perimeter has become intermittent, while recent rainfall has increased leachate — contaminated runoff water — draining from the site into local drains.
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What the Regulator Says Is Already Changing
Natural Resources Wales, which enforces Enovert's permit, says it takes the complaints seriously and continues to investigate reports of pollution.
The regulator confirmed that ambient air quality monitoring — including the AQ Mesh pod data Gittins referenced — is not actually required under the site's environmental permit and is not used when assessing compliance.
NRW pointed to ongoing remediation work, including new landfill gas wells, capping works, and a new waste cell, intended to improve gas capture and reduce off-site odour. Separately, complaint numbers have fallen this year compared to 2025, according to Enovert's own figures presented to a council committee — though leachate levels remain above permitted limits. Enovert was approached for comment.
Key Takeaways
- More than 140 households in Johnstown, Ruabon, and Rhos have joined a group legal action against Hafod Landfill operator Enovert.
- A Senedd Petitions Committee report, published January 2026, confirmed monitoring data showed breaches of the WHO nuisance odour threshold.
- The claim, led by law firm Hugh James, seeks compensation for loss of enjoyment of homes and gardens — not site closure.
- Campaigner Steve Gittins says required air quality data has been unavailable for two months due to access restrictions.
- The site holds an environmental permit until 2062.
- Natural Resources Wales confirmed ambient air monitoring is not required under the permit and is not used in compliance assessment.
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Politics & World News Editor
James Mitchell has covered US and UK politics for over a decade, with a focus on elections, foreign policy, and Capitol Hill. He breaks down complex political stories into clear, fast analysis.
