Chemical hydrology is the branch of hydrology focusing on the chemical make up of water. This is useful in everyday scientific applications such as drinking water testing. Safe water is of the utmost importance the world round. Bad water means bad health; bad health means bad civilization. An understanding of the chemical composition of water is also essential in understanding water's interaction with other chemicals, bodies, and elements. Universities all over the world stress the significance of chemical hydrology and its applications in real world situations.