Water is an indispensable requirement of the ecosystem and an essential component of life. Living organisms require water to sustain life. The required water must be of high quality and also free from all forms of pollutants either chemical or biological. Pollutants tend to decrease the quality and safety of water, leading to numerous diseases and sometimes death. These pollutants are on the increase due to increased industrialization, heavy agricultural practices, improper sewage systems, and many more. The pollutants found in drinking water constitute a serious environmental and public health problem, as the presence of contaminants in water is of great concern due to the level of hazard they cause to consumers and their contribution to the reduction of water quality. This study reviews the types of chemical pollutants found in water and correlates how physicochemical parameters are affected by these pollutants and in essence the quality of water. This important concept highlighted shows how living organisms are in constant threat provided contaminants from industries, agricultural practices are not controlled properly, and how physicochemical parameters indicating water quality will be affected continuously and a consequent continued decrease in water quality if proper environmental practices are not implemented.