November 26, 2009: The UNESCO-ISARM initiative in South Eastern Europe (SEE) coordinated by UNESCO-IHP Secretariat (Paris) in collaboration with UNESCO-BRESCE (Venice) and the United Nations Economic Commission for Europe (UNECE) has resulted in an inventory of 65 transboundary aquifers "Internationally Shared Aquifers in the Balkan Region: Preliminary assessment".

The assessment has been carried out by the UNESCO Chair on "sustainable water resources management", which coordinates the Network INWEB "International Network of Water/Environment Centres for the Balkans" at the Aristotle University of Thessaloniki, Thessaloniki, Greece (Prof. J. Ganoulis).