EVALUATION OF THE IMPACT AND CONTAMINATION OF GHAEMSHAHR LANDFILL ON SURROUNDING GROUNDWATER

In the current study, the possibility of contamination of groundwater resources of Ghaemshahr plain resulting by leachate from the main landfill of the city has been studied. Considering plain's alluvial type which is mostly composed of sand, gravel, clay, etc. there is a possibility of contamination of ground water by leachate of wastes, particularly considering the fact that groundwater flow direction is from landfill to water resources located in the north. In order to study the effect of leachate on underground water, the sampling was done from water resources at risk in two stages: the first one in June of 2014 and the other one in October of 2014. The parameters of total hardness, total alkalinity, Mg, COD, PH, NO3, SO4, Cd, Zn, Cu, and Ca were examined and the results were compared with those of National Standards of Iran (No. 1053) and International Standards of WHO. The results indicates that the amount of salts in well water samples are increasing.