Investigation of Groundwater Quality Around Atomic Energy Site in South East of Isfahan

This paper explains an investigation program of chemical analysis for determination of impurities in eight groundwater supplies in Isfahan atomic energy site. This studying fulfilled in fourteen successive seasons. This research explains variations of eight parameters including: Electrical Conductivity, Total Dissolved Solids (TDS), Total Hardness, Chloride Ion, Nitrate Ion, Sulphate Ion, Total Coliform, and Fecal Coliform.The result of this work showed that there is a significant relation between chemical parameters variations and seasonal changes and atmospheric rainfall so that with increasing temperature and decreasing atmospheric rainfall the concentrations of some parameters include conductivity, TDS, total hardens and chloride ion shifts toward a greater value but there is not a regular relation for nitrate and sulphate ion fluctuations. Microorganisms studying in this investigation, belongs to Coliform group bacteria which count with (MPN) standard method. The results of this study also showed that there is a direct relation between increase and decrease of temperature and the number of microorganisms.