ABSTRACT: The Topľa River catchment is located in the north-eastern part of Slovakia, and geologically it forms part of the flysch belt of the Outer Western Carpathians. Four springs in the Topľa River catchment were assessed according to temporal development of the yields, and six springs were assessed according to their groundwater chemical composition and physical properties. All evaluated springs are used as water sources for the local water supply. The trend analysis of weekly yields of the four evaluated springs are progressive in the Pod Horbi, Rúrna and V Podrožnom potoku springs and diminishing in the Vyšný Mirošov. The chemical composition of the water Ca-Mg-HCO3 and CaHCO3 was determined by appropriate chemical analysis. The value of total dissolved solids (TDS) in the groundwater ranges from 255.42 to 606.71 mg•L-1 with calcite, magnesium and bicarbonate ions dominating the groundwater chemical composition. Higher concentrations of chlorides and sulphates were observed in some springs, and the nitrate content was low. The groundwater in all sources had very good quality with low CODMn concentration, and therefore all groundwater samples satisfied Government Decree No. 496/2010.