The project includes: -Upgrading and reconstruction of the public water supply system: -Upgrading and reconstructing the public drainage system: -upgrading the existing CUPOV Pillar from I to II degree of purification (capacity 275.000 p.e.); in the area of the City of Split (settlement of Split, Stobreč, Kamen, Žrnovnica and Srinjine), the City of Solin (settlement of Solin, Vranjic, Mravince and Kučine), the Municipality of Klis (settlement of Klis), the Municipality of Dugopolje (settlement of Dugopolje and Koprivno) and the Municipality of Podstrana (settlement of Podstrana) with the aim of increasing the population's connection to public water supply and drainage systems and ensuring adequate wastewater treatment.