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Sources and Variability of Cryptosporidium in the Milwaukee River Watershed

By
Steven Corsi
Steven Corsi
United States Geological Survey, Water Resources Division
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John Walker
John Walker
United States Geological Survey, Water Resources Division
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Rovbert Washbusch
Rovbert Washbusch
United States Geological Survey, Water Resources Division
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Jan Standridge
Jan Standridge
Wisconsin State Laboratory of Hygiene, USA
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IWA Publishing
Volume
2
ISBN electronic:
9781780404035
Publication date:
October 2003

Recent well-publicized waterborne Cryptosporidium outbreaks involving large numbers of ill people and some deaths have been attributed to possible treatment deficiencies linked with source water (watershed) contamination. Understanding the occurence and variability of Cryptosporidium in a watershed is critical to the production of a safe drinking water supply. Essential to this understanding is the ability to characterize potential sources of Cryptosporidium and predict their occurrence in a watershed. The purpose of the work described in this report is to define the relative magnitude and contributions of Cryptosporidium from major non-point sources defined by urban land use, rural land use and point source wastewater discharges and to characterize contributions of each source by factors such as hydrograph timing, climatic effects and seasonal variations.

Statistical models are presented that can be used to estimate the probability of high Cryptosporidium levels from a given combination of conditions and may be useful for maximising sampling strategies for watershed managers charged with understanding Cryptosporidium occurrence in a watershed.

This title belongs to WERF Research Report Series

ISBN: 9781843396659 (Print)

ISBN: 9781780404035 (eBook)

Sources and Variability of Cryptosporidium in the Milwaukee River Watershed
By: Steven Corsi, John Walker, Rovbert Washbusch, Jan Standridge
DOI: https://doi.org/10.2166/9781780404035
ISBN (electronic): 9781780404035
Publisher: IWA Publishing
Published: 2003

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