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The purpose of the Community Water Supply Survey (CWSS) was to determine if the American consumer's drinking water met the Drinking Water Standards presented by the United States Public Health Service (USPHS). To obtain nationwide coverage, the Bureau of Water Hygiene initiated the CWSS in February of 1969 in nine areas across the country. The field work for the CWSS was conducted by the Bureau of Water Hygiene, in cooperation with the state and local health departments of the water utilities. The survey scope, methods and results are presented here.
McCabe et al. (Sun,) studied this question.