Monitoring and Modeling of Fecal Coliform Bacteria Loads in the Upper Pearl River Watershed

Author(s): Parajuli, P.; Jayakody, P.; Brooks, J.

Pathogens loading from the non-point sources of agricultural and non-agricultural activities contribute to water quality degradation. Developing Total Maximum Daily Loads (TMDLs) for the pathogens (e.g. fecal coliform bacteria, E. coli) require quantifying bacterial load contribution from potential sources. Quantifying bacterial loads from each source will help in developing pathogenic load reduction strategies to meet applicable water quality standards.

The objective of this research was to monitor fecal coliform bacteria concentrations and quantify bacteria loads from the Upper Pearl River Watershed (UPRW-7,885 km2) in the east-central Mississippi. Analysis of observed fecal coliform bacteria concentrations with stream flows from the watershed will be presented. Preliminary results from the model simulations with seasonal variability of bacteria concentrations will also be presented using appropriate statistics.

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