Issue to be resolved: Hydrocarbon and petrochemical waste from rigs are held offshore before being brought into the harbour for discharge into secure storage tanks on the quay.
These tanks require secondary containment to comply with the current Oil Storage Regulations.

Watchgate Water Treatment Plant near Kendal is United Utilities clean water treatment plant for Manchester’s water supply from Thirlmere and Windermere.

On site a 54,000 litre, 12% sodium hypochlorite tank was contained by wooden bunding which would not have been effective in the event of a spill. The Health and Safety Executive specified that bunding effective and compliant with best practice should be installed.