GEYER, Tobias¹, SÜLTENFUSS, Jürgen², EICHINGER, Florian³, GRAF, Thomas⁴ and SAUTER, Martin¹, (1)Geoscientific Centre, University of Göttingen, Goldschmidtstraße 3, Göttingen, 37077, Germany, (2)Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee, Bremen, 28359, Germany, (3)Hydroisotop GmbH, Woelkestraße 9, Schweitenkirchen, 85301, Germany, (4)Department of Civil Engineering, Gottfried Wilhelm Leibniz University Hannover, Appelstrasse 9, Hannover, 30167, Germany, tgeyer@gwdg.de, tgeyer@gwdg.de

DUCKWORTH, Rachel L., Geological Sciences, University of Missouri - Columbia, 101 Geology Building, Columbia, MO 65211-1380 and GOUZIE, Douglas R., Department of Geography, Geology & Planning, Missouri State University, 901 S. National, Springfield, MO 65897, rld455@mail.missouri.edu, rld455@mail.missouri.edu

DOCTOR, Daniel H.¹, HERMAN, Janet S.² and FARRAR, Nathaniel C.², (1)U.S. Geological Survey, MS 926A, Reston, VA 20192, (2)Dept. of Environmental Sciences, University of Virginia, P.O. Box 400123, Charlottesville, VA 22904-4123, jherman@virginia.edu, jherman@virginia.edu

SINREICH, Michael, Hydrogeology section, Swiss Federal Office for the Environment FOEN, Berne, 3003, Switzerland, michael.sinreich@bafu.admin.ch, michael.sinreich@bafu.admin.ch

GARY, Marcus O., Zara Environmental, Manchaca, TX 78652, SHADE, Beverly, Zara Environmental, 1707 West FM 1626, Manchaca, TX 78652, VENI, George, Executive Director, National Cave and Karst Research Institute, 1400 Commerce Drive, Box 4, Carlsbad, NM 88220-9187 and GARY, Robin, Communications, Barton Springs/Edwards Aquifer Cons. Dist, 1124 Regal Row, Austin, TX 78748, gveni@nckri.org, gveni@nckri.org

SCHWARTZ, Benjamin F., Edwards Aquifer Research and Data Center, Texas State University, 601 University Drive, San Marcos, TX 78666, GERST, Jonathan, Golder Associates, Inc, 9 Monroe Parkway, Suite 273, Lake Oswego, OR 97035, SCHREIBER, Madeline, Department of Geosciences, Virginia Polytechnic Institute and State University, Derring Hall 4044, Blacksburg, VA 24061-0420, TOBIN, Benjamin W., Biology, University of California, Merced, Merced, CA 94353, ORNDORFF, William D., Virginia Department of Conservation and Recreation Natural Heritage Program, 8 Radford St, Suite 102A, Christiansburg, VA 24073, DOCTOR, Daniel H., U.S. Geological Survey, MS 926A, Reston, VA 20192 and SCHWINNING, Susan, Department of Biology, Texas State University - San Marcos, 601 University Drive, San Marcos, TX 78666, bs37@txstate.edu, bs37@txstate.edu

LUHMANN, Andrew J.¹, COVINGTON, Matthew D.² and ALEXANDER Jr., E. Calvin¹, (1)Department of Earth Sciences, University of Minnesota, 310 Pillsbury Dr. SE, Minneapolis, MN 55455, (2)Karst Research Institute, Titov trg 2, Postojna, SI-6230, Slovenia, luhm0031@umn.edu, luhm0031@umn.edu

MARCHESINI, Pierpaolo¹, GRASMUECK, Mark¹, EBERLI, Gregor P.², ZELLER, Michael¹ and VAN DAM, Remke L.³, (1)Marine Geology and Geophysics, RSMAS - University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, (2)CSL-Center for Carbonate Research, University of Miami-RSMAS, 4600 Rickenbacker Causeway, Miami, FL 33149, (3)Department of Geological Sciences, Michigan State University, 206 Natural Science Building, East Lansing, MI 48824, pmarchesini@rsmas.miami.edu, pmarchesini@rsmas.miami.edu

HALIHAN, Todd¹, LOVE, Andrew² and KEPPEL, Mark², (1)School of Geology, Oklahoma State University, 105 Noble Research Center, Stillwater, OK 74078, (2)School of Chemistry, Physics and Earth Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia, 5046, Australia, todd.halihan@okstate.edu, todd.halihan@okstate.edu

COVINGTON, Matthew D., Karst Research Institute, Titov trg 2, Postojna, SI-6230, Slovenia, LUHMANN, Andrew J., Department of Earth Sciences, University of Minnesota, 310 Pillsbury Dr. SE, Minneapolis, MN 55455, WICKS, Carol, Geology and Geophysics, Louisiana State University, E237 Howe-Russell Geoscience Complex, Baton Rouge, LA 70803 and SAAR, Martin O., Department of Geology and Geophysics, University of Minnesota, 310 Pillsbury Dr. SE, Minneapolis, MN 55455, speleophysics@gmail.com, speleophysics@gmail.com

HENRY, Katrina Koski, Earth and Enviromental Science, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801 and WILSON, John L., Earth and Environmental Science, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, kkoski@nmt.edu, kkoski@nmt.edu

KINCAID, Todd R. and MEYER, Brent A., GeoHydros, 27 Keystone Ave, Reno, NV 89503, kincaid@geohydros.com, kincaid@geohydros.com

SUKOP, Michael C., Department of Earth and Environment, Florida International University, PC 344, University Park, Miami, FL 33199 and CUNNINGHAM, Kevin, U.S. Geological Survey, 3110 SW 9th Avenue, Fort Lauderdale, FL 33315, sukopm@fiu.edu, sukopm@fiu.edu

MARTIN, Jonathan B., Department of Geological Sciences, University of Florida, 241 Williamson Hall, P.O. Box 112120, Gainesville, FL 32611-2120, SPELLMAN, Patricia, Department of Geological Sciences, University of Florida, 241 Williamson Hall, PO Box 112120, Gainesville, FL 32611 and GULLEY, Jason, Department of Geological Sciences, University of Florida, 241 Williamson Hall, P.O. Box 112120, Gainesville, FL 32611, jbmartin@ufl.edu, jbmartin@ufl.edu

REIMANN, Thomas, Institute for Groundwater Management, TU Dresden, Postbox, Dresden, 01062, Germany and BIRK, Steffen, Institut für Erdwissenschaften, Karl-Franzens-Universität Graz, Heinrichstraße 26, Graz, 8010, Austria, Thomas.Reimann@tu-dresden.de, Thomas.Reimann@tu-dresden.de

PENNINGTON, Darrell, Geosciences, University of Arkansas, 113 Ozark Hall, Fayetteville, AR 72701 and BRAHANA, Van, Geosciences, Univ of Arkansas, 20 Ozark Hall, Fayetteville, AR 72701-1201, dpennin@uark.edu, dpennin@uark.edu