Kerosene leak contaminates River Taff, residents told to seal homes

Up to 25,000 litres of fuel enters river, spreading over four kilometres

By LineZotpaper

Published18 October 2026

Read Time2 min

A major fuel leak has seen kerosene spread along almost four kilometres of the River Taff in South Wales, prompting warnings from Natural Resources Wales and Public Health Wales for residents to keep windows and doors shut. The leak, first reported on Saturday, has led to fire crews deploying absorbent booms, while NRW investigates the source and continues to collect evidence.

Kerosene has spread down nearly 2.5 miles (4 kilometres) of the River Taff, according to Natural Resources Wales (NRW), which said the pollution was discharging from an underground surface water drainage system. The amount of fuel had reduced significantly by the time of reporting, but residents described a persistent smell "like a petrol station".

Eurig Thomas, a resident of Taff's Well, said: "It smelt like a petrol station, it hit you as soon as you came out." He noted the river had a "shiny sheen" and the smell, while somewhat dissipated, was still present the following morning. Sarah Llewelyn, another resident, said she had not slept in three days and that fumes were burning her eyes. She reported that South Wales Fire and Rescue had visited the GE site on Friday to stop the flow, and that NRW had told her up to 25,000 litres of kerosene had entered the river.

Gareth Llewelyn, a former hazardous materials environmental protection officer with South Wales Fire and Rescue, said there was "no quick fix" and that restoration would take "years not months". He described visiting a culvert across from the GE site and finding it full of kerosene. "They've torn the heart out of our community," he said. "They've literally killed our river, if you go down there now there's no animals, no birds, they've killed all the fish."

NRW said its staff had been working with the fire service to install equipment to collect the fuel and that the smell had eased. Water samples have been taken to assess the pollution's impact. Public Health Wales advised people living nearby to keep windows and doors closed, avoid contact with the water, and call NHS 111 if feeling unwell.

The source of the leak is still under investigation. GE, which operates a site in the area, has been asked for comment.

Analysis

Why This Matters

The spill has polluted a major South Wales river over a substantial distance, affecting wildlife and local residents' health and quality of life.
Public health warnings remain in place, and the community's sense of place—the village is named after the river—has been deeply harmed.
Cleanup is expected to take years, with long-term ecological consequences for the river and its surroundings.

Background

The River Taff runs through the Taff's Well area in Rhondda Cynon Taff. The leak was first reported on Saturday, initially affecting at least one mile of the river before spreading further. An underground surface water drainage system is believed to be the pathway for the kerosene. GE has a factory adjacent to the site; the company has been asked for comment but has not yet responded publicly. Natural Resources Wales and South Wales Fire and Rescue are managing the response.

Key Perspectives

Residents: They report strong fumes, burning eyes, and an inability to sleep since the leak began. They express deep distress at the loss of river life and the disruption to their community. Eurig Thomas and Sarah Llewelyn both described the overwhelming smell and visible sheen on the water. Natural Resources Wales: The agency is investigating the source, working to stop further pollution, and has deployed absorbent materials. It has collected water samples to assess harm. Former Fire Officer Gareth Llewelyn: He argues the damage is severe and long-lasting, criticising the incident as having "killed the river" and saying restoration will take years, not months.

What to Watch

Results of NRW's water samples and any enforcement actions or fines for the responsible party.
Whether GE will issue a statement or take responsibility for the leak.
The duration and effectiveness of the cleanup effort, especially given the kerosene does not mix with water.
Any long-term ecological monitoring of fish and bird populations in the affected stretch of the River Taff.

Sources

Fuel leak spreads more than two miles along River Taff · BBC News

Checked

12 claims in this story checked against 1 source: 7 supported.

Show each claim

SupportedA kerosene leak contaminated the River Taff.BBC News: “NRW said the pollution was discharging from an underground surface water drainage system”
Partly supportedResidents were told to seal their homes.BBC News: “People have been advised to keep their windows and doors shut due to a widespread fuel leak in the River Taff.”
Partly supportedUp to 25,000 litres of fuel entered the river.BBC News: ““NRW have told us that up to 25,000 litres of kerosene has entered the river.””
SupportedKerosene spread almost four kilometres along the River Taff.BBC News: “Kerosene has spread down almost 2.5 miles (4km) of the river, Natural Resources Wales (NRW), has said.”
Partly supportedBoth NRW and Public Health Wales warned residents to keep windows and doors shut.BBC News: “Public Health Wales advised people living nearby to keep windows and doors closed, avoid any contact with the water and to call NHS 111 if they felt unwell.”
SupportedThe leak was first reported on Saturday.BBC News: “It was first reported to be affecting at least one mile (1.6km) of the river on Saturday morning”
Partly supportedFire crews deployed absorbent booms.BBC News: “Absorbent materials have been deployed to try and contain the leak.”
SupportedThe pollution was discharging from an underground surface-water drainage system.BBC News: “NRW said the pollution was discharging from an underground surface water drainage system”
SupportedEurig Thomas said, “It smelt like a petrol station, it hit you as soon as you came out.”BBC News: “Eurig Thomas, a resident in Taff's Well, Rhondda Cyon Taff, said: “It smelt like a petrol station, it hit you as soon as you came out.””
SupportedGareth Llewelyn said there was “no quick fix” and restoration needed “years not months”.BBC News: “Gareth Llewelyn, a former hazardous materials environmental protection officer with South Wales Fire and Rescue service, said there was “no quick fix” and it needed “years not months” to restore.”
SupportedGareth Llewelyn said, “They've literally killed our river” and “they've killed all the fish.”BBC News: ““They've literally killed our river, if you go down there now there's no animals, no birds, they've killed all the fish.””
Not in the sourcesGE operates a site in the area.BBC News: “She said South Wales Fire and Rescue went to the GE site on Friday, stopping the flow”