20220727 13031200 1.0 TRUE Catchment Surface Geology Susceptibility Average The Catchment Surface Geology Susceptibility dataset was developed by analysing the sum length (as a percentage) of all scour susceptibility classes per catchment area, and the dominant class by percentage, using a combination of the EA's Scottish Catchments, England & Wales Catchments. A dominant class (highest percentage) is also provided for each catchment. The data layer identifies the average, worst and best-case scenario results along with the dominant class for each catchment area. Catchments having a large percentage coverage or number of designated sites will require a higher attention in terms of scour risk and management. British Geological Survey