METHOD
•   The soil attributes and the corresponding weights used for calculating the vulnerability index for pollution by leaching (groundwater / aquifers) are:
•Dominant parent material. For “Sandy materials” the weight is 1, for “Organic materials” the weight is “0.8”, for “Sandy loam” , “Sandy loess” “River alluvium”, “Lacustrofluvial alluvium”, “Estuarine/Marine alluvium” the weight is “0.75”, for “Glaciofluvial deposits”, “Till”, “Glaciofluvial drift” and “Alluvial or glaciofluvial clay” the weight is “0.5”.