← home / Tools / Safe Water System (SAS): membrane filtration + UV disinfection⚙● toolSafe Water System (SAS): membrane filtration + UV disinfectionPractices that use itCántaro Azul - Sistemas de Agua Segura and community managementA foundation established in 2006 that designs, implements and evaluates safe water, hygiene and sanitation solutions with community participation in Chiapas and other states. Its Sistemas de Agua Segura (SAS) use membrane filtration and UV disinfection to provide drinking water in schools and rural communities; it operates the programs Agua Segura en Escuelas, Gestión Comunitaria (NuestrAgua), Gobernanza del Agua and Atención a Emergencias.● Active· scale subnational