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In the eastern United States, 47 per cent of the population derive their water supply from surface sources (reservoirs and rivers) Generally, the supplies are taken from river tributaries rather than from the more polluted main stems. The paper suggests, in meeting the growing need for water it may become necessary to use more polluted sources through the utilization of the full capabilities of modern water purification plants. Examples are cited where good operation and relatively simple plant additions have increased plant capability for handling high coliform bacteria loadings, algae in high concentrations, tastes and odors, and organic matter removal. Suggested criteria limits for such plants are given.
water supply, rivers, water treatment, water quality, pollution, algae, coliform loadings, taste, odors
Flentje, M. E.
Consultant, Cherry Hill, N. J.