Assessment of ground water quality using water quality index and GIS O.S.D. Hima Bindu, Velishala Gayathri, Thallapally Swaranya and Jangiti Vyshnavi E3S Web Conf., 391 (2023) 01208 Published online: 05 June 2023 DOI: 10.1051/e3sconf/202339101208