ABSTRACT
Many regions of the Bihar is facing high concentration levels of arsenic (As) in drinking water which causes several health problems besides socioeconomic and other issues. The major source of drinking water is through the tubewell extracted from the groundwater. We investigate the sediment colours at various depths and associated As and Fe in drinking water. A sample of 10 shallow and deep aquifers tubewells were tested for As, Mn, Fluoride and Fe and As concentration was found from less than 1 µg/L to a maximum of 300 µg/L.We observed the sediment at different depths through the installation process by local drillers for 2 shallow aquifer tubewells and 1 deep aquifer tubewells. We suggest sediment colour concept can also be applied in Bihar to target safe water through depth despite having differences in terms of soil characteristics and other geological conditions.
