Abstract

The objective of this work was the characterization of conditions of ground-water wells in the above mentioned area. Methodology included an extensive sampling to obtain fundamental hydrogeological data, technical informations relating to well drilling and the relative position of wells vs cesspool. Geophysical prospecting (by electroresistivity methods) allowed us to determine the quality of the aquifers and the hydrogeological properties of the substratum. Most of the data were obtained by analysis (physicochemical and bacteriological) in situ, with the HACH Water Analysis Kit. Various degrees of potability were found, mainly on account ot the concentration ranges of Fe, NH 4 , NO 2 , and presence of coliform bacteria. The geochemical interpretation showed three types of water. The study of exchangeable bases revealed that there is a relationship between the chemical composition of waters and the lithology, and also the conditions of circulation of these waters within the rocks. Fluctuation of the concentrations of Fe and Cl are controlled by the distance from the beach, on the other hand the TDS, NH 4 and N0 3 , by conditions of circulation.

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