Groundwater survey in Ghazipur, Varanasi and Mirzapur districts of Uttar Pradesh (UP) in Middle Ganga Plain shows that people in these areas are
drinking arsenic-contaminated groundwater. Moreover, 60% of tubewells have arsenic concentration above the WHO guideline value of 10 ?g/l and 20% is above 50 ?g/l, the Indian standards for arsenic in drinking water. Depth information of 68 tubewells indicates that 85% tubewells are from shallow aquifers (10