The CHLOROKARST project comes to an end with the Conference “Polluted sites on karst aquifers” organised by the CHYN for the FOEN on 28 June, and the publication by the FOEN of the guide “Assessment of polluted sites in karst environment”, as well as the expert report “Investigation tools for polluted sites in karst environment (Chlorokarst project)” (in french and german). These events close a 6 years project coordinated by eOde, with the partnership of MFR and CHYN on behalf of the FOEN.