Company fined after worker injured cleaning machinery

On 24 March 2023, during cleaning of a waste picking line, an employee became trapped in a section of machinery when the line was accidentally switched on.

An investigation by the Health and Safety Executive (HSE) found the company failed to ensure an isolation procedure was correctly implemented while employees were cleaning machinery at its site at Aycliffe Quarry, Aycliffe Village, County Durham.

The incident occurred when a senior supervisor, restarted the machinery after mistaking the worker in question for a colleague in similar clothing nearby.

The employee suffered a fractured shoulder, torn ligaments, and a broken finger.

This was not the first serious incident at the site. In December 2015, one worker was killed and another suffered life-changing injuries on a separate waste sorting line due to similar failures to follow proper isolation and lock-off procedures.

HSE guidance highlights the importance of following safe isolation and lock-off procedures before any maintenance or cleaning work is carried out. Employers must ensure all machinery is properly isolated from power sources, and that systems are regularly monitored and reviewed to prevent inadvertent start-up. 

Stonegrave Aggregates Limited, part of the Ashcourt Group, of Halifax Way, Pocklington, pleaded guilty to breaching Section 2(1) of the Health and Safety at Work etc. Act 1974. The company was fined £270,000 and ordered to pay full costs of £15,637 at Teesside Crown Court.

Following the hearing, HSE inspector Darian Dundas said: “Effective monitoring, auditing and review of isolation systems is essential to demonstrate that they are working and controlling risk. Incidents like this can and should be prevented by following robust lock-off procedures.”

This prosecution was brought by HSE Enforcement Lawyer Karen Park, supported by paralegal officer Rebecca Foreman.