Cambodia’s child mortality ranks among the highest in Southeast Asia with an un- der five mortality rate at 83 per 1,000 live births (Cambodia Demographic and Health Survey (CDHS), 2005). Limited access to safe water and poor hygiene contribute to child morbidity and mortality—only 53% of rural families have access to safe drinking water (National Report on Final Census Re- sults, 2008). Diarrhea is responsible for 17% of deaths of children under the age of five (WHO, 2006). The Demographic and Health Survey conducted in 2005 indicated that one in five children under the age of five had diarrhea in the two.