The benefits of portable water are enormous because it is essential for living organism’s welfare and healthy living. A large number of over 1 billion individuals has been estimated that they do not have access to useful water and about 2.4 billion the entire population are short of essential sanitation. This study was set out to determine bacteriological parameters of raw and treated water within the premises of Malali water works, Kaduna State, Nigeria. Standard techniques were employed to identify and determine some bacteria associated with water of Malali Water Works, findings were therefore related to permissible limits. The result showed that Coliform was present both in treated water, E. coli, Salmonella, and Pseudomonas were only present in raw water. This implies therefore that there were no bacteria observed in treated water at Malali Water Works, Kaduna State. It can be concluded therefore that treated water from the Malali water works is of better quality than raw and untreated water. Generally, treated water in the area is free of the bacteria checked for. Routine research should be consistently carried out to in Malali Water Works and other places where water is purified for human consumption.