4 4,2 "Interface,m-msl",-999.99 "Lithology",-999.99 "Grain-size-distr. class NEN5104",-999.99 "Admixture",-999.99 1.80,C,None,"None" 0.80,C,None,"Weak Sandy" 0.50,S,ZRSO,"None" -3.20,-,-,-