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Chemical quality of public water supplies of the United States and Puerto Rico, 1962
Charles N. Durfor, Edith Becker
1964, Hydrologic Atlas 200
Municipal water systems in the United States and Puerto Rico supply water for many commercial and industrial uses as well as for domestic wells. It is generally known that our water resources are unequally distributed throughout the country, but it is not quite so well understood that the quality of...