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CHARACTERIZING SURFACE WATERS THAT MAY NOT REQUIRE FILTRATION
Citation:
Geldreich*, E E., J A. Goodrich*, AND R M. Clark*. CHARACTERIZING SURFACE WATERS THAT MAY NOT REQUIRE FILTRATION. JAW_0028475, JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION. AWWA Internet, Denver, CO, 82(12):40-50, (1990).
Impact/Purpose:
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Description:
Field data from various utilities were studied with the object of identifying a set of characteristics of a surface water that might allow it to be successfully treated by disinfection alone, thus avoiding the need to filter. It was found possible to define water quality standards for a surface water amenable to disinfection only: fecal coliforms 20/100 mL, turbidity 1 NTU, color 15 acu, and chlorine demand 2 mg/L. As well as meeting specifications for raw-water quality and monitoring, a utility would also need to meet certain conditions for system operations. Some of the natural characteristics that influence water quality in a surface water include storage capacity, eutrophication, retention time, and stratification-destratification. Watershed management is an essential aspect of controlling water quality fluctuations and in preventing progressive deterioration of the raw-water. The bulk of the article discusses water quality criteria and parameters, as well as monitoring strategies for raw water.
