selected publications academic article Groundwater and stream E. coli concentrations in coastal plain watersheds served by onsite wastewater and a municipal sewer treatment system. Water Science and Technology. 72:1851-1860. 2015 Preliminary evaluation of a permeable reactive barrier for reducing groundwater nitrate transport from a large onsite wastewater system. American Journal of Environmental Sciences. 11:216-226. 2015 Fate and transport of enteric microbes from septic systems in a coastal watershed. Journal of Environmental Health. 77:22-30. 2015 Fate and transport of phosphate from an onsite wastewater system in Beaufort County, North Carolina.. Journal of Environmental Health. 76:28-33. 2014 Meteorological influences on nitrogen dynamics of a coastal onsite wastewater treatment system. Journal of Environmental Quality. 43:1873-1885. 2014 Spatial distribution of fecal indicator bacteria in groundwater beneath two large on-site wastewater treatment systems. Water. 6:602-619. 2014 Onsite wastewater system nitrogen contributions to groundwater in coastal North Carolina. Journal of Environmental Health. 76:16-22. 2013 Cumulative saturation of low chroma soil colors and shallower depths: Implications for on-site wastewater system design. International Journal of Soil Science. 6:249-258. 2011 Evaluation of on-site wastewater system Escherichia coli contributions to shallow groundwater in coastal North Carolina. Water Science and Technology. 63:789-795. 2011 Evaluation of soil colors as indicators of the seasonal high water table in coastal north carolina. International Journal of Soil Science. 6:103-113. 2011 Controls on groundwater nitrogen contributions from on-site wastewater systems in coastal North Carolina. Water Science and Technology. 62:1448-1455. 2010 The influence of urban channel incision and water table decline on floodplain groundwater Nitrogen Dynamics; Greenville, NC. Journal of Environmental Hydrology. 18:1-22. 2010 Seeps regulate stream nitrate concentration in a forested appalachian catchment. Journal of Environmental Quality. 39:420-431. 2010 Urban land use, channel incision, and water table decline along coastal plain streams, North Carolina. Journal of the American Water Resources Association. 45:1032-1046. 2009 Geological controls on seasonal-pool hydroperiod in a karst setting. Wetlands. 28:1004-1017. 2008 Stream-air temperature relations to classify stream-ground water interactions in a karst setting, central Pennsylvania, USA. Journal of Hydrology. 329:140-153. 2006 conference paper Characterization of on-site wastewater nitrogen plumes in shallow coastal aquifers, North Carolina. World Environmental and Water Resources Congress 2010: Challenges of Change - Proceedings of the World Environmental and Water Resources Congress 2010. 949-958. 2010 Nitrogen cycling on five headwater forested catchments in Mid-Appalachians of Pennsylvania. IAHS-AISH Publication. 29-36. 2005