A large expanse of concrete slabs were cracking and this was causing serious concern at the environmental impact of contaminants escaping and causing contamination to a nearby watercourse.
Investigatons centred around the suitability and weight of heavy machinary on the slabs, high thermal gradients and temperatures generated by the process of composting and adequacy of the design of the reinforced concrete slabs.
A scheme of remedial works was put in hand.