MCKAY, Larry¹, LAYTON, Alice C.², KNAPPETT, Peter S.K.³, CULLIGAN, Patricia J.⁴, MAILLOUX, Brian J.⁵, FERGUSON, Andrew⁴, FEIGHERY, John⁴, EMCH, Michael⁶, SERRE, Marc L.⁷ and VAN GEEN, Alex⁸, (1)Department of Earth and Planetary Sciences, The University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996-1410, (2)Center for Environmental Biotechnology, University of Tennessee, Knoxville, TN 37996, (3)Institute for Groundwater Ecology, Helmholtz Center for Environmental Health, Ingolstaedter Landstr. 1, Neuherberg, 85764, Germany, (4)Civil Engineering & Engineering Mechanics, Columbia University, Room 626, 500 W. 120th Street, New York, NY 10027, (5)Department of Environmental Sciences, Barnard College, 76 Claremont Ave, New York, NY 10027, (6)Department of Geography, University of North Carolina at Chapel Hill, Saunders 308, Chapel Hill, NC 27599, (7)Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599-3220, (8)Lamont-Doherty Earth Observatory, 205 Core Lab, 61 Route 9W, PO Box 1000, Palisades, NY 10964-8000, lmckay@utk.edu, lmckay@utk.edu

BRADBURY, Kenneth R.¹, BORCHARDT, Mark A.², GOTKOWITZ, Madeline B.³, ZHU, Jun⁴, GELLASCH, Christopher A.⁵, SPENCER, Susan K.² and HUNT, Randy⁶, (1)Wisconsin Geological and Natural History Survey, University of Wisconsin-Extension, Madison, WI 53705, (2)USDA-Agricultural Research Service, 2615 Yellowstone Drive, Marshfield, WI 54449, (3)Wisconsin Geological and Natural History Survey, 3817 Mineral Point Rd, Madison, WI 53705, (4)Department of Statistics and Department of Entomology, University of Wisconsin-Madison, 1300 University Avenue, Madison, WI 53706, (5)Department of Geoscience, University of Wisconsin, 1215 W. Dayton St, Madison, WI 53706, (6)Wisconsin Water Science Center, USGS, 8505 Research Way, Middleton, WI 53562, krbradbu@wisc.edu, krbradbu@wisc.edu

GELLASCH, Christopher A., Department of Geoscience, University of Wisconsin, 1215 W. Dayton St, Madison, WI 53706, BRADBURY, Kenneth R., Wisconsin Geological and Natural History Survey, University of Wisconsin-Extension, Madison, WI 53705, GOTKOWITZ, Madeline B., Wisconsin Geological and Natural History Survey, 3817 Mineral Point Rd, Madison, WI 53705, BORCHARDT, Mark, Environmentally Integrated Dairy Management Research Unit, USDA Agricultural Research Service, 2615 East 29th Street, Marshfield, WI 54449 and BAHR, Jean M., Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706, gellasch@wisc.edu, gellasch@wisc.edu

WAMPLER, Peter J., Geology Department, Grand Valley State University, 1 Campus Drive, Allendale, MI 49401 and SISSON, Andrew J., Annis Water Resources Institute, Grand Valley State University, 1 Campus Drive, Allendale, 49401, wamplerp@gvsu.edu, wamplerp@gvsu.edu

HRUBY, Claire, Environmental Science Graduate Program, Iowa State University, 3155 NSRIC, Ames, IA 50011, SOUPIR, Michelle, Agricultural & Biosystems Engineering Dept, Iowa State University, 3163 NSRIC, Ames, IA 50011 and MOORMAN, Thomas B., National Lab for Ag and the Environment, USDA-ARS, 2110 University Blvd, Ames, IA 50011, cehruby@iastate.edu, cehruby@iastate.edu

BORCHARDT, Mark¹, SPENCER, Susan¹, KIEKE Jr, Burney², LAMBERTINI, Elisabetta³ and LOGE, Frank³, (1)Environmentally Integrated Dairy Management Research Unit, USDA Agricultural Research Service, 2615 East 29th Street, Marshfield, WI 54449, (2)Marshfield Clinic Research Foundation, 1000 N. Oak Ave, Marshfield, WI 54449, (3)Civil and Environmental Engineering, University of California - Davis, 1 Shields Ave, Davis, 95616, Mark.Borchardt@ARS.USDA.GOV, Mark.Borchardt@ARS.USDA.GOV

BALOCH, Mansoor A. and GELTING, Richard J., Centers for Disease Control and Prevention, National Center for Environmental Health, 4770 Buford Highway, MS: F60, Atlanta, GA 30341, mbaloch@cdc.gov, mbaloch@cdc.gov

CORSI, Steven¹, HUGHES, Peter¹, BORCHARDT, Mark², SPENCER, Susan K.³ and BALDWIN, Austin¹, (1)U.S. Geological Survey, 8505 Research Way, Middleton, WI 53562, (2)Environmentally Integrated Dairy Management Research Unit, USDA Agricultural Research Service, 2615 East 29th Street, Marshfield, WI 54449, (3)USDA-Agricultural Research Service, 2615 Yellowstone Drive, Marshfield, WI 54449, srcorsi@usgs.gov, srcorsi@usgs.gov

BRITT, Christopher, Earth Science, University of Northern Iowa, 121 Latham Hall, Cedar Falls, IA 50614 and IQBAL, Mohammad, Dept. of Earth Science, Univ of Northern Iowa, Cedar Falls, IA 50614, brittcab@uni.edu, brittcab@uni.edu

BARTON, Ashley M., Earth and Environmental Sciences, University of Kentucky, 101 Slone Research Bldg, University of Kentucky, Lexington, KY 40506, ROMANEK, Chris S., Department of Earth and Environmental Sciences, University of Kentucky, 101 Slone Research Building, Lexington, KY 40506, BRION, Gail M., Civil Engineering, Univ of Kentucky, 367 Raymond Building, Lexington, KY 40506-0281 and FRYAR, Alan E., Earth & Environmental Sciences, University of Kentucky, 101 Slone Building, Lexington, KY 40506-0053, amba229@uky.edu, amba229@uky.edu

MONDAL, Pulin K. and SLEEP, Brent E., Civil Engineering, University of Toronto, 35 St. George Street, Toronto, ON M5S 1A4, Canada, pulin.mondal@mail.utoronto.ca, pulin.mondal@mail.utoronto.ca

FERIANCIKOVA, Lucia, JOHANSON, Jennifer and XU, Shangping, Department of Geosciences, University of Wisconsin Milwaukee, 3209 N Maryland Ave, Milwaukee, WI 53211, lucia@uwm.edu, lucia@uwm.edu