The Vauchere River Basin (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption This is the river near EPFL campus that was the subject of the study. Credit EPFL Usage Restrictions Credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.