Interesting Discovery During Site Investigation Works
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An interesting discovery was identified on day one. ‘Blue Billy’, which is often associated with coal gasification, is common in gas and coke works throughout the UK. A distinctive Prussian blue colour which has become synonymous with contaminated land, it is a ferrocyanide and contains high levels of cyanide and ammonia compounds which, if ingested, can lead to chronic risks to health.
Historical site contamination is prevalent, however this does not mean it poses an unacceptable risk to human health, controlled waters or the environment.