This organization would directly teach simple methods to purify water such as distillation and outdoor UV treatment that are low-cost and  require minimal resources (no 'cutting edge' technology here) along with general health information related to water quality. It would also provide information about sexual health and sexually transmitted diseases. We believe what is 'common knowledge' in the developed world can be a powerful weapon against communicable disease and major health concerns in societies that do not have this knowledge or the means to attain it.