Hydrochemical characteristics of the thermomineral water from the spa of Kežovica – Štip, Republic of Macedonia

Abstract

Hydrochemical characteristics of thermomineral water samples from four wells (B1, B2, B3 andS3) were analyzed. They are located in the vicinity of the Kežovica spa, southwest from the city of Štip. With regardto geotectonic view, the wider area around the wells belongs to Serbo-Macedonian massif and Vardar zone. TheKežovica spa is located in a contact between granite and Upper Eocene sediments. Several grapho-analytical methods(Piper diagram, Stiff diagram, Chadha diagram and D’Amore) have been used for the analysis of water samples. Thehydrochemical analyses point out that the water from all wells have the same origin. The major cations in the waterаre Na+ and Ca2+, and anions аre Cl– and SO42–. All waters belong to NaCl water type.