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This paper summarizes the results obtained from an International Development Research Centre (IDRC), Ottawa, Canada, funded study to evaluate the potential of using coliphage as an indicator of water quality. Raw water sample data indicated that the A‐1 test combined with the coliphage test would make an excellent screening program for health hazards in these waters. The superiority of the Presence/Absence test for detecting microbial health hazards in potable water was readily shown, while the H 2 S paper strip technique was found to be equally efficient for testing potable waters as traditional coliform water quality indicators.
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Castillo et al. (1988) studied this question.
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