Evaluation of groundwater quality for drinking and irrigation purposes: a case study of Peddavanka watershed, Anantapur District, Andhra Pradesh, India

Abstract

Quality of groundwater in a 398 km² Peddavanka watershed of a semi-arid region of south India is taken up for study and evaluation of its suitability for drinking and irrigation purposes. The main lithologic units in the watershed are quartzite, limestone, shale, and alluvium. Seventy-six water samples were collected from the open-wells and bore-wells covering the entire watershed. The water samples collected in the post-monsoon (winter) and pre-monsoon (summer) were analyzed and interpreted.