Author： Dwight Ryan H. Semenza Jan C. Baker Dean B. Olson Betty H.
Publisher： Water Environment Federation
ISSN： 1061-4303
Source： Water Environment Research, Vol.74, Iss.1, 2002-01, pp. : 82-90
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Abstract
The associations between storm events, urban runoff, and coastal water quality have not been well investigated. A temporal and spatial analysis of 2 years of data was conducted to determine associations between urban river discharge and indicator bacteria levels for Southern California beaches and evaluate the contribution of anomalous precipitation to the association. Data show beaches next to rivers had the highest bacterial levels in both wet and dry seasons. Bacterial levels rose substantially across all sites during wet months, and river discharge and bacterial levels were all highest during the winter with the most rainfall. Precipitation was significantly associated (Spearman rank bivariate correlation,
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