The residents of Cleveland, Mississippi face a threat most of them don't even know about: bacterial contamination and excessive sodium in their tap water. Cleveland’s water quality has become compromised due to the city’s defective water filtration system. As a result, bacteria and sodium spread throughout the city. This has can cause many short and long-term illnesses across the population, particularly for those who need to avoid sodium. Written by Junron Zhou and produced by Savannah Bryant.