Haghimas (or Hasmas) Mountains lay in the area of Eastern Carpathians of Romania, like a preponderant carbonate zone, far away from crowded living and industrial areas, therefore far away from hazardous polluting environment. The reference points of the whole area are Lacul Rosu Resort and Bicaz Valley, the latter with its gorges being like a “backbone” for the region. In Haghimas Mountains the main body of karstifiable rocks belongs to the Tithonic-Neocomian and includes massif white and red limestone. The karstifiable deposits lay over an impervious wildflysch substratum of Barremian-Albian age.The whole body of karstifiable formations is separated into several blocks, bordered by impervious formations or by longitudinal and transversal faults. Each of these blocks is drained by karstic springs, located either at the contact between karstifiable and non-karstifiable formations or in the fault areas that cut the limestone.

The recharge of the aquifers located within the carbonate rocks is mainly provided by diffuse seepage of rainfall on the limestone and dolomite outcrops, but sometimes temporary swallets may appear. In such settings occur the most important springs of considerate area. The waters emanated from carbonate deposits of Haghimas Mountains belong to calcium bicarbonate type with very low concentration, thus the TDS has values between 286 and 397 mg/l. The dry residues (obtained after 105oC drying process) varies between 205 and 286 mg/l. The pH values are constant in time and space, slightly oscillating around 6.2 value. It may be underlined that the waters of the springs described in this paper, with an accumulated flow of 0.3 m3/s fulfill all the chemical, bacteriological, radioactivity and pesticide content requirements of drinking water standards in order to be classified as still waters (flat uncarbonated waters).