The project consists of two phases. Phase 1 of the project includes investment investments within the financial period OPKK 2014-2020. Phase 2 of the project covers investment investments within the financial period of the PKK 2021-2027. The Ivanić-Grad agglomeration will be aligned with the Urban Waste Water Treatment Directive (91/271/EEC) through the upgrade of the 3rd degree wastewater treatment plant, the upgrade of the drainage system, the increase of the connection to the drainage system and the reconstruction of part of the existing drainage system. The target group of this project are residents currently connected to the public drainage system and those who will be connected to the new and/or reconstructed public drainage system through this project.