GAP was developed by a group of water quality experts and geospatial modellers at Eawag (the Swiss Federal Institute of Aquatic Science and Technology) with the support of the Swiss Agency for Development and Cooperation (SDC). We build on more than ten years of experience in the predictive statistical modelling of geogenic groundwater contaminants and in developing and promoting innovative mitigation options.



Dr. Joel Podgorski

Project Coordinator

Senior Scientist


Dr. Michael Berg

Project Manager


Principle Investigator


Dr. Dahyann Araya

Post-Doctoral Researcher

Geospatial modelller​

 Previous contributors

  • Dr. Annette Johnson, Eawag, project initiator

  • Dr. Chris Zurbrügg, Eawag directorate

  • Anja Bretzler, Eawag

  • Jay Matta, Eawag

  • Fabian Suter, Eawag

  • Dr. Manouchehr Amini, Ernst Basler + Partner

  • Dr. Tobias Siegfried, Hydrosolutions

  • Jakob Steiner, Hydrosolutions


Get in touch, and let us know how we can help


Swiss Federal Institute for Aquatic Science and Technology
P. O. Box 611
8600 Dübendorf

Water GIS Info Contact