Bacteriological Study of Coliform Bacteria in Tap Water from Different Areas of Quetta District and its Comparison with Bottled Water

Abstract

Quetta is a capital city of Balochistan province with a population of 2.9 million. Clean water is basic need of human population. Present study was conducted to access the quality of water in targeted areas of Quetta. A total of 160 samples were collected randomly from four zones (North, South, East and West) of this city from October, 2015 to September, 2016. Lauryl Tryptose Agar was used to detect Coli form bacteria in tap water and bottle water. Among total 160 samples processed in current study, Coliform positive were (n=89) while coliform negative were (n=71). On other hand Tap water compared to bottled water was free of coliform.