The project involves the construction and reconstruction of the public water supply system; the construction and reconstruction of the public drainage system; the upgrade of the existing CUC to Divoil from 1 to 2th purification step with an increase of capacity from 40.000 ES to 100.000 ES; building of the UPOV of 2 degrees treatment grades, 25.000 ES; in the area of the city of Kaštela, the Trogra, the Segam municipality and the District of that settlement (the City of Split), with the aim of increasing the population’s attention to public water supply and sanitation systems and ensuring adequate treatment of waste water. The total cost of the Project is 1.438.788.243,9 million. HRK, and of 1.151.030.595,12 million of the total eligible costs. At least 69.78 % and 803.222.768,51 million HRK, respectively. The amount of the EU grant is HRK.