The WaterCheck® Bacteria Test Kit is a simple to use screening tool to detect sewage contamination in water. The test determines the presence or absence of coliform and E. Coli bacteria, indicative of fecal pollution. WaterCheck® is sensitive enough to meet national drinking water standards of a single colony forming unit (CFU) per 100 ml of water. Water sample collection, mixing, incubation and observation are all done in the same sterilized plastic bag. Presence of a visible blue-green colour protects from the dangers of waterborne pathogenic micro-organisms.