6 4,2 "Interface,m-msl",-999.99 "Lithology",-999.99 "Grain-size-distr. class NEN5104",-999.99 "Admixture",-999.99 -2.10,C,None,"Strong Organic" -2.40,P,None,"Strong" -5.50,C,None,"Weak Organic" -5.70,P,None,"Weak Silty" -9.10,S,None,"Moderate Organic" -9.40,-,-,-