Safe and reliable drinking water is the suitable selection of every citizen of the country. This examination is a simple field test to ascertain the bacteriological standard of water purity a rapid and reliable method identified as applicable for by field workers, Environmental health officers and community water volunteers to assess the microbial water superior standards and distinction where potential problems exist in the drinking water quality management process. Result is obtained in 24 hours!. The h2s strip test allows the microbial quality of drinking water to function as analyzed on-site without the application of expensive laboratory equipment. The method is simple and, An inexpensive visual method where a if it is contaminated, Turning black, Water sample changes colour. It is light, Easy for utilizing and portable. It is suggested that the h2s strip test serves the purpose of a especially in, Screening test specific regions where assessment of water purity cannot be normally carried out.