The first part of the thesis examines the current state of the water supply system of municipality Odzaci, with quantitatively and qualitatively defining existing springs, in order to define the sufficiency of spring capacity for existing and future water supplies in the municipality. The second part of the thesis analyzes the possibility of connecting each individual settlement of municipality Odzaci to the future municipal system with two preliminary solutions (solution with water towers - taken from the General project of water supply of the municipality of Odzaci, by Institute for Water Management "Jaroslav Cerni" from 2018; and solution with underground water tanks), and the third part of the thesis considers the option of upgrading the municipal system, i.e. development of a regional system that will, in addition to the municipality Odzaci, supply the neighboring municipality Bac. Hydraulic analysis of water supply system of concerned area was carried out via software package EPANET.