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Tesco Stores has been fined £8m after pleading guilty to a major pollution incident, which saw 23,500 litres of petrol leak in to a Lancashire sewerage system and rivers. £5m of the fine was levied for failings under the Dangerous Substances and Explosive Atmospheres Regulations.

The leak came from a filling tank at the retailer’s petrol station in Manchester and was allowed to continue for more than 24 hours. Local residents had to seek medical help after petrol odours drifting up from the sewer network gave them headaches and nausea. Residents living up to 1km away were affected by the leak and the smell remained in homes for a number of days.

Preston Crown Court also heard that some of the petrol made its way into Langwood Brook and the River Irwell, causing significant environmental damage. The Environment Agency (EA) reported that more than 40 dead fish had been found within 2.5 km of where the pollution entered the watercourse. Anglers reported dead fish in Bury, more than 10 km downstream.

The joint EA and Lancashire County Council investigation linked the incident to Tesco’s failure to resolve a known problem with the fuel delivery system and an inadequate alarm system. The retail giant’s poor emergency procedures also contributed to the incident, which sparked a multi-agency operation involving the EA, Lancashire County Council, United Utilities, Lancashire Fire and Rescue Service and Lancashire Police.

The court heard that 23,500 litres of unleaded petrol flowed from the tank over a 29-hour period between 2-3 July 2014. Some 7,000 litres were recovered at the site and the remainder spilled into the sewer system and watercourse.

The retailer pleaded guilty to two charges – a breach of reg 12(1)(b) and 38(1)(a) of the Environmental Permitting (England and Wales) Regulations 2010 and a breach of reg 6(8) of DSEAR 2002, contrary to s 33(1)(c) of the Health and Safety at Work Act.

Tesco Stores was ordered to pay £5m for the larger health and safety offence and £3m for the environmental offence. The retailer also had to pay costs of £22,000 to the council and £35,434 to the government agency.

County councillor Albert Atkinson, deputy leader of Lancashire County Council with responsibility for trading standards, said: “This was a major fuel leak in a relatively built-up area and close to a busy superstore. The potential consequences are only too obvious. The fact that the leak was allowed to continue for more than 24 hours undoubtedly contributed to a risk of harm to people living and working nearby, as well as emergency services and other professionals attending the incident.”

A Tesco Stores spokesperson responded to the sentence: “We sincerely regret the fuel spillage incident at our petrol station in Haslingden and we’re sorry for the impact it had on the local environment, our customers and the community. This was a deeply unfortunate isolated incident and one for which we have taken full responsibility.”

Following the incident, Tesco Stores added that it has inspected petrol stations, introduced a new real-time monitoring system and other improvements to prevent similar incidents.

Source – IOSH Magazine

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