The total microbial load of water samples collected from thirteen DCUs was determined using conventional microbiological methods. Based on the count of colonies formed (cfu) on heterotrophic media plates following an incubation period, the microbial load of the samples was determined in colony forming units per milliliter of water (cfu/mL). Plate counts to determine the presence of pathogenic contaminants such as, total coliforms count, faecal coliforms count, Escherichia coli count, faecal streptococci count and Pseudomonas aeruginosa were carried out using techniques proposed in the Standard Methods for Examination of Water and Wastewater. The presence of other microorganisms was determined using PCR technique.