The metal contaminations and non-metallic pollutants in water control its odour, colour and taste on one side and application as solvent or reaction medium, washing & refrigeration on another side. Such contaminants leave a long-term adverse effects on human health. Also, the biotic contaminants cause innumerable water diseases and health problems. In Gomati river at Kerakat, Jaunpur, during 2004, a periodic and positional estimation of Ca2+, Mg2+, Fe3+, CO3 2– and Cl– has been done. The variation of these parameters, limiting the applicability of water has been discussed logically.