In a New Delhi slum in India, Sundar Kumar , 27, bathes from a well next to a garbage dump where people defecate in the open. Open defecation may happen in India’s villages more often, but it has a deeper impact on the water supply in India’s slums. Organizations like Water Aid work to provide toilets in the slums of cities like New Delhi. But they are a small fraction of what is necessary to maintain a healthy water supply and sanitary living conditions.