A significant fuel leak has spread more than two miles along the River Taff in South Wales. It affects areas from Nantgarw to Taffs Well. Source: bbc.co.uk.
What Happened
Residents first reported a strong fuel smell on Saturday morning. The odour was described as like a petrol station.
Reports came in from Glan Y Llyn, Gwaelod-y-garth, and Tongwynlais. By Friday evening, Natural Resources Wales (NRW) confirmed the leak came from an underground drainage system.
NRW found the source at 19:30 BST on Friday. It has not named the location, saying further investigation is needed.
Key Facts
- Kerosene has spread about 2.5 miles (4km) along the river, from Nantgarw to Taffs Well.
- NRW estimates up to 25,000 litres of kerosene entered the river — a large volume.
- Residents in Taffs Well see a visible sheen and still smell fuel, especially in the afternoon.
- Public Health Wales advises keeping windows and doors closed. Avoid water contact. Call NHS 111 if unwell.
- Water samples have been collected to check pollution levels and long-term effects.
Community Impact
Eurig Thomas, a Taffs Well resident, said the smell hit him as soon as he opened his door. The river flows behind his house, coming from the GE factory.
Sarah Llewelyn said she hasn’t slept in three days. The fumes burned her eyes. She called it a ‘national disaster’.
Gareth Llewelyn, a former hazardous materials officer, visited a culvert near the GE site. It was full of kerosene. He said the spill has damaged the community deeply.
He reported no animals or birds in the area. All fish have died — a clear sign of ecosystem collapse.
Response and Actions
NRW and fire service crews have placed absorbent materials to catch the leak.
Special equipment has been installed to collect fuel and stop it from flowing into the river.
NRW says the amount of fuel entering the river has dropped. The source is still under review.
Why It Matters
The River Taff is central to the identity of Taffs Well. The village is named after the river.
The spill has damaged a key local ecosystem. Residents fear lasting health and environmental harm.
Open Questions
NRW has not named the exact source or how the fuel entered the drainage system.
The full environmental damage is still being assessed.
GE has not issued a public statement, despite being upstream.
It’s unclear how long pollution will last or if downstream areas are at risk.
What to Watch For
Residents should watch for new health symptoms.
Water quality reports will be released soon.
NRW will continue investigating and share updates on containment and recovery.
Source: BBC News
Sources & further reading
Featured image: River Taff at Radyr.JPG by Libby, CC BY 3.0, via Wikimedia Commons. Image source · License
