The public health importance of safe drinking-water

Clean water is the base of life. It is critical for humans, all species, animals, crops, plants, health, etc. Access to clean, safe water can prevent deaths, diarrhea, infection spreads,  dehydration, and other health complications.  
40 years ago rivers were so polluted that they were lifeless and dangerous for human health. The Chicago River, for instance, as it is illustrated in the video was polluted so dramatically by human actions that it became entirely unusable. By implementing water protection laws and the Clean Water Act in 1972, the government took control over such a vital natural source. Protecting chemical, biological and physical integrity of water the U.S. Congress protects and maintains natural water sources. Additionally, the Clean Water Act assures in eliminating the discharge of pollutants into the nation s waters.