The York Potash Harbour Facilities Order 2016

Further provisions about works

11.  During construction, an area equivalent to the easement widths of the pipelines (taken from the actual location of the pipelines shown on the pipeline survey) must be fenced off using some form of visual indication such as netlon fencing or “heras” type fence panels. Suitable signage warning of the danger of live pipelines must be erected at a minimum distance of every 50 metres.