Sustainable Drinking Water Security Strategic Plan: A Case Study of Juba South Sudan Harrison H. Boying1, Fang Ping 2*, Mohamed Yateh1 , Mulenga Collins1, Emmanuel W. Gore1, Wonleh S. Slehkie1 Abstract South Sudan is currently fronting significant difficulties to achieve the 2030 Sustainable Development Goals 6 (SDGs) framed in 2015, concentrating on