Analele ştiinţifice ale Universităţii "Al. I. Cuza" din Iaşi

CRISTINA OANA STAN - „Al. I. Cuza” University of Iaşi, Department of Geology, Romania, Romanian Academy, Iași Branch, Geography Group, Romania
EMILIAN PANAITESCU - National Administration „Apele Române” – Prut Waters Directorate, Iaşi, Romania
RALUCA ANDREEA EFTIMIE - Department of Mathematics and Statistics, McMaster University, Canada

The hydrogeochemistry of the shallow groundwaters from Cristeşti has been described by means of hydrogeochemical diagrams (Piper, Durov) and through the analysis of the hydrogeochemical changes that occur from the terraces area, at the foot of which the first drilling was carried out towards the aquifers conduit discharge area (Prut river). Thus, the HCO₃^- - Na⁺ waters, are projected within the CAD range (calcite – anhydrite – dolomite), whereas the SO₄^2- - Na⁺ waters ”migrate” towards gypsum/anhydrite and dolomite, as the calculated saturation indexes prove. The indicator that presents exceeding values of MAC, in all the drillings, is CCOMn.