This deliverable reports the establishment of index system for groundwater source risk assessment in the SUSTAIN H₂O project during the project’s 1st reporting period. Two demonstration areas in the SLRB were chosen: one in Ashi River Basin and the other in Taizi River Basin, where Ashi River is the tributary of Songhua River, and Taizi River is the tributary of Liao River. The
consortium members have conducted several field surveys in the study areas and acquired the first-hand information. Experts from Germany provided technologies and strategies on groundwater risk assessment in EU countries. This deliverable is the outcome of the internal and external collaborations that the consortium members have engaged in the context of the SUSTAIN H₂O project.