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Water Quality Index-WQI is useful to transfer complex information of the groundwater quality data into comprehensible and useable data. In this research work, the investigation is carried out by collecting 66 groundwater samples and amalgamating nine water quality parameters for evaluation of groundwater utilizing WQI in pre-as well as post-monsoon of a year in the villages of Gara Mandal of Srikakulam District in Andhra Pradesh. The results confirmed that most of the groundwater sample locations (54.5% of groundwater samples) showed poor quality in both pre-as well as post-monsoon seasons. On the other hand, the correlation matrix indicates the strong positive correlation exists between the chemical parameters like calcium ion and magnesium ion with chloride, sulphate as well as nitrate ion represents that groundwater in the sampling locations has been polluted due to geological conditions, seepage of sewage and anthropogenic activities. Hence a proper treatment is required before utilized for drinking.

Safe drinking water is essential to the protection of public health and well-being of citizens. Clean safe and adequate fresh water is vital to the survival of all living organisms. Drinking water affects the health of human beings due to the presence of various chemical constituents. Therefore, every person should have required the minimum knowledge of quality of drinking water. Ground water is the one of the major sources of water for drinking, agricultural and industrial needs. The subject of the quality of water in village of Srikurmam in Gara mandal of Srikakulam District, Andhra Pradesh is taken up for the study. An attempt is made to investigate the physico-chemical parameters of ground water on seasonal base and its comparison. The results in this presentation are reported and comparison on the seasonal base like

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