The impact of Sewage and Abattoir effluent discharge into river resulted in water pollution there by reduces it quality.This study aimed at analysing the physicochemical and bacteriological parameters of Karu Abattoir effluent and Sewage discharge into Karu River in FCT ,Abuja, Nigeria in order to ascertain the quality and impact on Karu River. Four water samples along with one effluent ample were collected aseptically and subjected to standard microbiological and physicochemical analysis