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My research focuses on identifying and quantifying the factors that regulate groundwater and nutrient inputs to surface waters. I am particularly interested in understanding how anthropogenic disturbances affect streamflow processes and non-point source nutrient and bacteria inputs to shallow aquifers and surface waters. Current research includes investigation of nutrient inputs to Coastal Plain and Piedmont lakes, rivers, and estuaries, restoration of buried urban streams, nutrient exports from coastal package treatment plants, and development of geophysical approaches (electrical resistivity, ground penetrating radar, and electromagnetic induction) to characterize subsurface wastewater plumes in sensitive coastal watersheds.