The development, testing and validation of a methodology to detect agglomerations which are covered by the EU Wastewater Directive. The agglomerations were defined on the basis of a GIS-based methodology and compared with the currently reported agglomerations. In this way it becomes clear that urban areas are not equipped with treatment plants and / or sewerage systems and / or agglomerations which are not reported by the Member States.
VITO developed, tested and calibrated the necessary GIS and modeling methodology. VITO also composed a list of agglomerations of 24 countries and compared them with the reported agglomerations.