system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Indication of Fecal contamination of water is due to presence of-
assistant
The correct answer is  Ans. is `a' i.e., E. coli; 'b' i.e., Coliform; sc' i.e., Enterococci Bacteriological indicators of water contamination o Presence of following organism indicate fecal contamination of water. 1) Confirm : by all practical point of view it is assumed that all coliform are fecal in origin unless a non-fecal origin can be proved. 2) Fecal streptococci or enterococci : They regularly occur in feces. Finding offecal streptococci in water is regarded as impoant confirmatory evidence of recent fecal contamination water. 3) Clostridium perfringens : They also regularly occur in feces. Presence of spore of Cl. perfringens and absence of col i form group indicate remote contamination of water.