Physico-Chemical and Bacteriological Quality of Water from Different Sources in Gondar Town

3 Abstract: Human health depends on safe water more than any other things. The objective of present study is to determine the physico-chemical and bacteriological quality of water from different sources. All parameters investigated in this study were shown significant difference at P 0.05. The physicochemical parameters: water pH and temperature were varied between 6.5 to 8.3 and 20.3 to 24 °C, respectively. The values of turbidity fluctuated between 0.5 to 46.3 NTU and the values of total dissolved solids and conductivity fluctuated between 53.1-1.8mg/l and 1.1-3.03 µS/cm, respectively. Dissolved oxygen varied between from 4.5 to 5.5mg/l. Free residual chlorine varied between from 0.1 to 0.4 mg/l. Nitrite content, phosphate content and biological oxygen demand were varied between 0 to 0.3mg/l, 0 to 34.5mg/l and 1.2 to 21.8mg/l, respectively. The bacteriological parameter: The values of total coliform count ranged from 1.1×10 cfu/ml to 6×10 cfu/ml. 64