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VARIATION OF PATHOGEN DENSITITES IN URBAN STORMWATER RUNOFF WITH LAND USE
Selvakumar*, A AND M Borst*. VARIATION OF PATHOGEN DENSITITES IN URBAN STORMWATER RUNOFF WITH LAND USE. Presented at 9th International Conference on Urban Drainage, Portland, OR, 09/08-13/2002.
Stormwater runoff samples were collected from outfalls draining small municipal separate storm sewer systems. The samples were collected from three land use areas (high-density residential, low-density residential, and landscaped commercial). The concentrations of organisms in the stormwater runof were found to be similar to those found in untreated sanitary sewage. Geometric mean organism concentrations from high-density residential areas were higher than those associated with low-density residential and landscaped commercial areas. Since the outfalls are free of sanitary-sewage cross-connections, the major sources of organisms to the stormwater runoff are most likely from the feces of domestic animals and wildlife