UA “surface area of 500 m²” was polluted by a “crude oil leak” in the TotalEnergies refinery in Donges, this Sunday, November 24, announced the Loire-Atlantique prefecture. The leak is “partly” contained.
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“The TotalEnergies refinery in Donges detected a crude oil leak yesterday evening (Saturday evening) at an elbow on a 30 cm diameter line,” the prefecture announced in a press release published on Sunday. She says she mobilized “all state services […] immediately “. “The leak materialized as a 2 cm breach on a weld seam”, which created “a trickle of flow which led to an iridescence of a surface of approximately 500 m² in the Loire”, a specified the prefecture.
Floating booms installed
“This area could be partly contained by a double containment system via floating booms despite climatic conditions which make it difficult to encircle this iridescent zone,” she reported. The incident was detected at 10:50 p.m. on Saturday, TotalEnergies said in a press release on Sunday. “The flow of crude oil into the Loire” was stopped “at 1:40 a.m.” during the night and “the system was completed this (Sunday) morning at 8:50 a.m.,” added the company.
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According to the prefecture, it is “since 3:45 a.m.” on Sunday that “no more flow of crude oil has flowed into the Loire” and “interventions” have been launched “to permanently plug the leak”. “The quantity of product escaped into the Loire is less than 15 m³”, according to TotalEnergies. Analyzes carried out on the banks of the Loire “revealed no trace of hydrocarbon” and “no anomaly in the air either” was recorded, the company said. “The iridescent waters should partly disperse naturally and be carried back, by the action of the wind, onto the banks,” the prefecture had previously indicated, ensuring that the assessment of the environmental impact of this leak was continued.
In December 2022, a leak from this refinery, classified Seveso high threshold, caused the flow of 700,000 liters of gasoline. The Donges platform, which occupies an area of nearly 350 hectares and where 650 employees work, is the group’s second refinery in France, after that of Normandy, in Gonfreville-l’Orcher (Seine-Maritime), according to the website of TotalEnergies. The Donges site has a processing capacity of 11 million tonnes of crude oil per year, for a storage capacity of 2.2 million m³ (crude oil and finished products), according to the same source.
