H13O:
Nonpoint Source Flux Impact on Groundwater, Vadose Zone, and Surface Waters: Assessment, Mechanisms, and Control Strategies I

Monday, 15 December 2014: 1:40 PM-3:40 PM
Chairs:  Christopher T Green, U. S. Geological Survey, Menlo Park, CA, United States, Laura A Schifman, University of Rhode Island, Geosciences, Kingston, RI, United States and Thomas Harter, University of California Davis, Davis, CA, United States
Primary Conveners:  Thomas Harter, Univ California, Davis, CA, United States
Co-conveners:  Laura A Schifman, University of Rhode Island, Geosciences, Kingston, RI, United States, Jennifer Cooper, University of Rhode Island, Kingston, RI, United States and Christopher T Green, USGS, Baltimore, MD, United States
OSPA Liaisons:  Thomas Harter, University of California Davis, Davis, CA, United States

Abstracts Submitted to this Session:

1:40 PM
 
Emerging policies to control nonpoint source pollution of groundwater
Thomas Harter, University of California Davis, Davis, CA, United States
1:55 PM
 
Processes Controlling Temporal Changes in Agriculturally-Affected Groundwater
Karen R Burow1, Kenneth Belitz2 and Bryant C. Jurgens1, (1)USGS California Water Science Center Sacramento, Sacramento, CA, United States, (2)USGS Headquarters, NAWQA, Reston, VA, United States
2:10 PM
 
Viruses as Tracers: A tool to characterize fast groundwater flowpaths
Randall Hunt1, Mark A. Borchardt1,2 and Kenneth R. Bradbury3, (1)USGS, Middleton, WI, United States, (2)USDA-ARS, Laboratory for Infectious Disease and the Environment, Marshfield, WI, United States, (3)Wisconsin Geological and Natural History Survey, Madison, WI, United States
2:25 PM
 
Sediment and Fecal Indicator Bacterial Loading in a Mixed Land Use Watershed: Contributions from Suspended and Bed Load Transport
James Kenneth Bradshaw1, Marirosa Molina2, Kathleen Sullivan2 and Roy C Sidle2, (1)Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States, (2)U.S. Environmental Protection Agency, Athens, GA, United States
2:40 PM
 
Transport of Nitrogen and Phosphorus from Onsite Wastewater Treatment Systems to Shallow Groundwater
Gurpal Toor, Univ of FL-Gulf Coast REC, Wimauma, FL, United States
2:55 PM
 
A Unified Experimental Approach for Estimation of Irrigationwater and Nitrate Leaching in Tree Crops
Jan W Hopmans, Univ California Davis, Davis, CA, United States, Maziar M. Kandelous, University of California - Davis, Davis, CA, United States and Ahmad B Moradi, University of California Davis, Davis, CA, United States
3:10 PM
 
Groundwater Head Control of Catchment Nitrate Export
Andreas Musolff1, Christian Schmidt1, Michael Rode2 and Jan H Fleckenstein1, (1)Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany, (2)Helmholtz Centre for Environmental Research UFZ, Magdeburg, Germany
3:25 PM
 
Influence of Conowingo Reservoir Infill on Chesapeake Bay Deep Water Hypoxia
Lewis Craig Linker1, Carl F Cerco2 and Richard Batiuk1, (1)Environmental Protection Agency Chesapeake Bay Program, Annapolis, MD, United States, (2)US Army Corps of Engineers, Jacksonville, FL, United States
 
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