Ever since the serious incidents of the 1960s, most notably Aberfan, there has been a legal duty to improve the way tips and stockpiles are built and inspected.
The Geotechnical Procedure outlines the requirements regarding the management of tips, stockpiles and quarry faces. It outlines the duties of the responsible manager, the geotechnical specialist and the geologist.
There are guidelines on what is required in a geotechnical assessment and excavation and tip rules. Finally, there are template documents for tip, excavation and lagoon inspection and appraisal.