6 4,2 "Interface,m-msl",-999.99 "Lithology",-999.99 "Grain-size-distr. class NEN5104",-999.99 "Admixture",-999.99 -1.80,P,None,"None" -5.10,C,None,"Weak Silty" -6.80,P,None,"None" -9.40,C,None,"Strong Sandy" -9.80,S,CSFO,"None" -9.81,-,-,-