The bill covers removal of radioactive and toxic waste the worst of which affected the banks of River Lea, which runs through the east London site.

In total the final clean-up bill will be £12.7 million with much of the work taking place on the ground where the Olympic stadium is under construction.

Years of heavy industry on the site has left the contamination with tests by the Environment Agency also finding pollution the River Lea which will need further work to clean.

Around 60,000m3 of contaminated soil was taken out from the site and almost as much ground water has also been remediated.

The Environment Agency said the costs were ‘no great surprise’ as it was only a small part of a huge sum spent on decontamination of the Olympic Park.

Luke Walsh

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