Abstract: The paper presents Physico-chemical study of ground water from downstream area of Budhi Gandak River in Samastipur district of Bihar during monsoon season of 2021. The study reveals that, the quality of ground water in the selected study area is not same at different sites. The present analysis reveals that ground water available in areas is moderately benign in irrigation. It is indicating that, quality of ground water should be improving slightly and maintained properly. So, the study may prove to be of some help in understanding the quality of ground water resources of study area.

Keywords: River, Ground water Quality, Physico-chemical

| DOI: 10.17148/IARJSET.2022.9422