1. British Geological Survey, Crowmarsh Gifford
Wallingford, Oxfordshire, OX10 8BB, UK
2. Geological Survey of Denmark and Greenland
Thoravej 8, DK-2400, Copenhagen, Denmark
3. University of Paris-Sud, Laboratory of Hydrology and Isotope Geochemistry
Bat. 504, F-91405 Orsay Cedex, France
4. Department of Geosciences, University of Aveiro
3810-193 Aveiro, Portugal
5. Hydrogeology Associate Unit, Spanish Council for Scientific Research and Technical University of Catalonia
Jordi Girona 1-3, Bld. D2. 08034, Barcelona, Spain
6. Institute of Geology at Tallinn Technical University
Estonia Blvd. 7, 10143 Tallinn, Estonia
7. University of Avignon, Laboratory of Hydrogeology
33, Rue Pasteur, F-84000 Avignon, France