The results from a 1 1/2-year study of ground-water quality in the vicinity of Milwaukee, Wisconsin, support the suggestion by other researchers, that chloride and sulfate are the principal products of urbanization which alter ground-water chemistry. In addition to chloride and sulfate, ground-water samples, from the Menomonee River Watershed contained relatively high concentrations of ammonium, fecal coliform and fecal streptococci bacteria. Field data suggest that contamination of ground water is caused by infiltration of surface water polluted by municipal and industrial wastes and (or) leakage from sewer lines. Some additional chloride contamination by infiltration of road salt is also suggested.
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Eisena et al. (1979) studied this question.
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