Water quality monitoring of a central Himalayan river, river Kosi was done for a period of one year. The study was done to ascertain the suitability of its water for potable supplies and to generate benchmark data for the management of the river ecosystem, as the river has a great bearing on the socio-agricultural life of the region.

Water samples were collected from different places in Godavari River located at Sangam point in Maharashtra and Basar point in Andhra Pradesh. The results obtained are compared with drinking water standard (BIS-10500). The results obtained envisaged that pH value of drinking water samples were slightly neutral but the maximum pH was recorded in the site III at Bastar point (Andhra Pradesh) sampling location and minimum value 7.22 was noticed in site III at Sangam point.