Groundwater Vulnerability to Pollution S index map (Soil media) in Catalonia according to DRASTIC

Type of soil media map expressed as an index value according to DRASTIC ranges from 1 to 10. The lowest values in the area (index value of 4) - correspond to loam and silty loam soils and the highest values (index value of 10) correspond to gravel soils or terrains with non-existent soil.