Water quality is being assessed by the microbial indicators e.g. Coliforms. There are two main types of coliform bacteria, which indicate that there may be some other disease causing microbes present along with these coliforms. Total coliform are the organisms that are productive in the soil. Fecal coliform bacteria instigate in the intestines of warm-blooded organisms (mammals). They have short life span as compared to other coliforms. The presence of coliform bacteria in ground water is a worldwide issue including Pakistan. Presence of these bacteria in drinking water indicates the...