The company that runs the Sellafield nuclear site in west Cumbria has pleaded guilty to seven charges relating to the illegal dumping of nuclear waste.
The company faces charges concerning the disposal of intermediate and low level waste bags on Lillyhall landfill site.
Sellafield Ltd, which is responsible for around 70% of the UK's higher radioactive waste, reported the 2010 incident to the Environment Agency at the time.
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