Research regarding indicator bacteria in surface water has experienced increased demand in recent years. In the United States Environmental Protection Agency’s (USEPA 2002) National Water Quality Inventory in 2000, 13% of the river and stream miles that were surveyed were impaired by indicator bacteria. Further, of the stream and river miles designated as impaired, either unable or partially unable to meet their designated use, more were impacted by indicator bacteria than by any other pollutant or stressor (USEPA 2002). Stormwater runoff is a contributor to this pollution, yet stormwater BMPs have shown varied results in treating indicator bacteria.
Jon’s research will focus on various aspects of indicator transport and treatment in urban systems. This research will involve:
Evaluating one urbanized watershed in Raleigh, NC, to determine if a first flush pattern is followed by indicator bacteria in stormwater runoff. This study will help determine the effectiveness of current BMP design standards and sampling techniques. Additionally, a better understanding of indicator transport in urban systems will be gained.
Evaluating indicator bacteria EMCs and loadings in an urbanized watershed in Raleigh, NC. Compare EMCs and loadings to antecedent weather conditions (rainfall, solar radiation, temperature, etc.) to determine if correlating variables can be determined.
Evaluating 5 stormwater BMPs in Wilmington, NC, for indicator bacteria removal. This study will add to the current knowledge base of BMP indicator bacteria removal effectiveness and will help refine future research goals on this topic.
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Evaluating a stormwater wetland in Lenoir, NC, for indicator bacteria removal and attempting to determine differences in soil indicator bacteria concentrations based on location in the wetland. This study will attempt to look at factors controlling indicator bacteria removal in stormwater wetlands and will provide a clearer picture of how well these systems remove indicator bacteria.
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USEPA. 2002. National Water Quality Inventory 2000 Report. EPA-841-R-02-001. Office of Water, Washington, DC.
NC State University Campus Box 7625 Raleigh, NC 27695
jon_hathaway@ncsu.edu
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NC State Stormwater Engineering Group
NC State Stream Restoration Program