IAH Contact


The Netherlands’ Chapter of the International Association of Hydrogeologists is governed by the Board:

– Professor Theo Olsthoorn, PhD, chair

Sophie Vermooten, secretary and treasurer

– Barry Leuverman, member

– Albert Tuinhof, member

– Michael van der Valk, member (succeeding Professor J.J. de Vries, PhD)


The board can be contacted by sending a message to Sophie Vermooten.


IAH global website


IAH national chapters of other countries


International Hydrogeologists Network (IAH membership directory)