- Dr. Francis Claret, BRGM, Orleans
- Dr. Irina Gaus, Nagra, Wettingen
- Prof. Dr.-Ing. habil. Olaf Kolditz, Helmholtz Centre for Environmental Research – UFZ, Leipzig
- Prof. Dr. Ruben Kretzschmar, ETH Zürich, Zürich
- Dr. Ann-Kathrin Leuz, ENSI, Brugg
- Prof. Dr. Katherine Morris, University of Manchester, Manchester
- Dr. Tim Vietor, Nagra, Wettingen
Former Members
- Prof. Dr. T. Fanghänel, ITU, Eggenstein-Leopoldshafen
- Dr. Markus Fritschi, Nagra, Wettingen
- Prof. Dr. Horst Geckeis, Karlsruher Institut für Technologie (KIT) INE, Karlsruhe
- Prof. Ingmar Grenthe, KTH, Stockholm
- Dr. David Hodgkinson, Quintessa, Henley-on-Thames
- Dr. Lawrence Johnson, Nagra, Wettingen
- Dr. Monika Jost, BFE, Bern
- Prof. Dr. W. Kinzelbach, ETH Zürich, Zürich
- Prof. Ghislain de Marsily, Université de Paris VI, Paris
- Dr. Charles McCombie, Arius Association, Baden
- Dr. U. Niederer
- Prof. Dr. H. Nitsche, Lawrence Berkeley National Laboratory, Berkeley
- Prof. Dr. M.O. Saar, ETH Zürich, Zürich
- Prof. Werner Stumm
- Prof. Dr. Pierre Toulhoat, CNRS and Université Lyon, Villeurbanne
- Prof. Dr. Jan Van der Lee, EDF-F&D-Materials Ageing Institut, Moret-sur Loing
- Dr. Hans Wanner, ENSI, Brugg
- Prof. Dr. Bernhard Wehrli, EAWAG, Kastanienbaum
- Dr. Beat Wieland, BFE, Bern
- Dr. Piet Zuidema, Nagra, Wettingen
- Dr. Auguste Zurkinden, ENSI, Brugg