Start with these reference sources to get an introduction to your topic.
Websites
Website of the Government of South Sudan
United Nations' South Sudan Website
Information about worldwide water and sanitation issues
The United Nations' webpage about worldwide water and sanitation issues
http://www.waterforsouthsudan.org/
Water for South Sudan delivers direct, transformative and sustainable quality-of-life service to the people of South Sudan by efficiently providing access to clean, safe water and improving hygiene practices in areas of great need.
https://www.icrc.org/en/what-we-do/water-habitat
The International Committee of the Red Cross page about water, sanitation and shelter
CIA World Factbook: Extensive information about almost every country in the world.
Geography and culture
Culturegrams: Maps and cultural information about every country in the world. (user: maret password: frogs)
World Geography and Culture Online: History, maps, and news about every country. (user: maret password: frogs)
Political Handbook of the World: Information about the government in almost every country in the world. (user: maret password: frogs)
Science and the environment
GREENR: Global Reference on the Environment, Energy, and Natural Resources: Tons of in depth information about the environment and water, including articles, photos, videos, and more! (password: frogs)
Science in Context: Articles, images, and more about scientific topics, including water. (password: frogs)
Today's Science: News and recent history about scientific topics, including water. (user: maret password: frogs)
Current Issues and Newspapers
Opposing Viewpoints: Essays, images, videos, audio, charts, and newspaper articles about contemporary issues. (password: frogs)
Issues: Understanding Controversy: Articles, maps, timelines, and multimedia about contemporary issues. (user: maret password: frogs)
CQ Researcher: In-depth reports on contemporary U.S. and global issues. (user: maret password: frogs)
SIRS: Magazine, newspaper, and journal articles on contemporary issues. (user: maret password: frogs)
NewsBank: Contemporary newspaper articles from around the world. (user: maret password: frogs)