Evaluation of Groundwater Quality in Narayanpur Watershed, Nalgonda District, Andhra Pradesh

The present studies were aimed to investigate groundwater quality in the Narayanpur watershed, Nalgonda District, Andhra Pradesh. The need for evaluation of groundwater quality has gained considerable importance as the area is deficient in surface water resources and also experiences frequent serious water shortages owing to the vagaries of the monsoon. The groundwater is the only source of water for almost all villages of this area. The chemical characteristics of groundwater have an important bearing on its utilization, therefore, an attempt has been made to assess the quality of groundwater. A systematic approach has been made to elucidate various relationships between the different chemical parameters and to study their interrelationships. Evaluation of chemical data for different geochemical groups has been identified and presented for pre and postmonsoon seasons. The quality fluctuations and the variations in the concentration of different ions have been studied and the correlation has been attempted through graphical representation. A number of indices have been calculated and presented for finding the utilitarian aspects of the groundwater.