The lack of running water of sufficient quantity and quality poses serious health threats in remote Arctic communities.  E.g. the incidence of respiratory infections in arctic communities is high, and a direct correlation between clean water in sufficient quantities and significant reductions in diseases and infections and hospitalizations has been found. Skin infections, respiratory tract infections and severe invasive bacterial infections such as meningitis are more common in communities lacking water and sewer service.  Children are especially vulnerable; pneumonia hospitalization rates for rural Alaska Native infants and children are the highest in the United States.  These issues were discussed at two previous conferences: Sanitation in Cold Climate Regions which took place Sisimiut, Greenland 12th-14th of April 2016, and Water Innovations for Healthy Arctic Homes held in Anchorage, Alaska 18th-20th of September 2016. Both conferences were integrated into the Arctic water, sewer and health (WASH) initiative of the Arctic Council’s Sustainable Development Working Group. In this session, the newly established Thematic Network “Arctic WASH” wishes follow up on the two previous meetings by inviting researchers from the circumpolar region to present their recent results and join the discussions.