Among Americans, it is almost an article of faith that the water flowing from their faucets is fit to drink. Last week the Department of Health, Education and Welfare dealt that faith a shattering blow. In a survey of 969 of the country's 23,000 water-supply systems, HEW's Bureau of Water Hygiene found that some 900,000 persons in the tested areas were consuming water dangerously contaminated by such poisons as arsenic, lead, selenium and fecal bacteria. The water supply of another 2,000,000, though safe to drink, was held to be unacceptable in taste, odor...
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