Abstract: This research was carried out in Birnin kudu water treatment plant and some distribution channels within the town of Birnin Kudu on Bacterial that causes metal corrosion , deteriorate and brought pipes failure . The water treatment plant is located in Birnin kudu local government area of Jigawa state, Nigeria. Bacterial counts showed the presence of large bacterial cells in the various samples collected. The enumeration of sample from Birnin kudu treatment plant , Audu Bako way showed higher colonies among all the samples, Various metals associated with microbiological influence corrosion harbor large microbial population, which is estimated to be around 103 to 109 CFU/ml.