In a war torn country like Afghanistan the infrastructures of school building, clinics, safe drinking water are still underdevelopment. Improvements in portable water supplies, coverage with basic sanitation and marked hygiene behavioral change will likely take many years to complete. Inadequate access to safe drinking water, unsafe disposal of excreta coupled with poor hygiene behavior has been found to be the root cause for the high prevalence of several diseases across the country such as Acute Watery Diarrhea. HAS - AUS provides services in water supply and sanitation fields. HAS is implemented several projects of Rural water supply ans sanitation in Afghanistan.