WHO & UN Data
WHO & UN data documenting the problem:
The water and sanitation crisis claims more lives through disease than any war claims through guns. (2006 United Nations Human Development Report.)
575 million people die each year from water-related disease. (World Health Organization. 2008. Safer Water, Better Health: Costs, benefits, and sustainability of interventions to protect and promote health.)
884 million people lack access to safe water supplies; approximately one in eight people. (UNICEF/WHO. 2008. Progress on Drinking Water and Sanitation: Special Focus on Sanitation.)
Source: World Health Organization: Technical Notes on Drinking Water, Sanitation & Hygiene In Emergencies 2013