Evaluation of the Groundwater Quality in Constanta County, Seaside Area

The paper analyzes, from the quality perspective, the underground water sources which supply the localities in Constanta County. The quality analyses performed highlighted that most of the wells, not deeper than 100 m, are contaminated with nitrates, with concentrations higher than the maximum admissible level of the drinking water. Also, in the adjacent area of the Black Sea, sodium concentrations were recorded above the admissible concentration level for the drinking water. The wells deeper than 100 m do not necessarily guarantee water of higher quality, because there are areas in the water from the deep aquifer which contain also nitrates above the admissible limit, and also sulphate hydrogen or other compounds.