eng Science and Education Publishing Applied Ecology and Environmental Sciences 2328-3920 2020-08-27 8 6 336 339 10.12691/aees-8-6-2 AEES2020862 article S. Sarita sajjasarita@gmail.com 1 P. Brahmaji Rao 1 Department of Environmental Sciences, Acharya Nagarjuna University, Guntur Water quality index is a mathematical method to applied for assess the water quality levels and for easy understand the water quality either in ground or surface water and using the standards, the present study was conducted in the pedana mandal groundwater quality for domestic and drinking purpose, there are 10 sampling stations were selected based on the more consumption and analyzed the physicochemical analysis in the pre monsoon season in 2019, the water quality parameters are pH, total hardness, Total dissolved solids, Calcium, Magnesium, Sulphtes, Chlorides, Fluorides and Iron, because each and every parameter is correlated to other parameter except iron and fluoride. The result reveals that average WQI value 428.02 is maximum and the value 137.24 is minimum in the study area, all water samples are high values and unfit for the drinking purpose, the values shows that 137.24 is poor water, the water is not suitable for direct consumption and required treatment before consumption. http://pubs.sciepub.com/aees/8/6/2/aees-8-6-2.pdf groundwater physicochemical water quality index drinking