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Water is the most important matter of life, the get safe drink water is considered as aright essential to all human. Although the necessity of water for the welfare of human and sustainable development, but sometime water borne diseases are caused death in some parts of the world. The causes of water pollution include a wide range of chemicals and pathogens as well as physical parameters. | Int.J.Curr.Microbiol.App.Sci 2019 8 12 1152-1162 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 12 2019 Journal homepage http www.ijcmas.com Review Article https doi.org 10.20546 ij cmas.2019.812.144 A Literature Review on Drink Water Contamination Anaam Jawad Alabbasy Elham Jawad Bilal and Furqan Saddam Salman Alabbasy Department of Biology College of Education for Girls Kufa University Iraq Corresponding author ABSTRACT Keywords Toxic waste Water borne diseases Sewage water Article Info Accepted 10 November 2019 Available Online 10 December 2019 Water is the most important matter of life the get safe drink water is considered as aright essential to all human. Although the necessity of water for the welfare of human and sustainable development but sometime water borne diseases are caused death in some parts of the world. The causes of water pollution include a wide range of chemicals and pathogens as well as physical parameters. Contaminants may include organic and inorganic substances. The presence of contaminants in water can lead to adverse health effects including gastrointestinal illness reproductive problems and neurological disorders in infants young children pregnant women the elderly and people whose immune systems are compromised. Introduction Sources of drinking water are subject to contamination and require appropriate treatment to remove disease-causing contaminants. Contamination of drinking water supplies can occur in the source water as well as in the distribution system after water treatment has already occurred. There are many sources of water infection containing naturally occurring chemicals and reserves for case arsenic radon uranium local land use performs fertilizers pesticides focused feeding processes manufacturing processes and sewer overflows or wastewater releases. A common reason of thermal pollution is the consumption of water as a coolant through power plants and