PAULSON, Glenn, US Environmental Protection Agency, Science Advisor to the Administrator, 1200 Pennsylvania Avenue, NW, MC 1011A, Washington, DC 20460, paulson.glenn@epa.gov

DRUSCHEL, Gregory¹, KAFANTARIS, Fotios Christos¹, GARCIA, Angel A. Jr², and SCHMITT-KOPPLIN, Philippe³, (1) Department of Earth Sciences, Indiana University Purdue University Indianapolis, 723 W. Michigan St., SL118, Indianapolis, IN 46202, gdrusche@iupui.edu, (2) School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, (3) Analytical BioGeoChemistry, Department of Environmental Sciences, HelmholtzZentrum Muenchen, Ingolstaedter Landstrasse 1, Neuherberg, 85764, Germany

BENNETT, Philip C., SYDOW, Lindsey, and JONES, Aaron A., Geological Sciences, The University of Texas, 2275 Speedway Stop C9000, Austin, TX 78712, pbennett@mail.utexas.edu

KAASALAINEN, Hanna, Institute of Earth Sciences, University of Iceland, Sturlugata 7, Reykjavik, 101, Iceland, hannakaa@hi.is and STEFÁNSSON, Andri, Institute of Earth Sciences, University of Iceland, Askja, Sturlugata 7, Reykjavik, 101, Iceland

STEFÁNSSON, Andri¹, KELLER, Nicole S.¹, and SIGFUSSON, Bergur², (1) Institute of Earth Sciences, University of Iceland, Sturlugata 7, Reykjavik, 101, Iceland, as@hi.is, (2) Reykjavik Energy, Baejarhals 1, Reykjavik, 110, Iceland

PLANER-FRIEDRICH, Britta Sr, University of Bayreuth, Environmental Geochemistry, Universitaetsstrasse 30, Bayreuth 95540 Germany, b.planer-friedrich@uni-bayreuth.de

SHAN, Huimei¹, DONG, Yihui¹, MA, Teng², and WANG, Yanxin², (1) School of Environmental Studies, China University of Geosciences, Wuhan, Luomo Road 388, Hongshan District, Wuhan, 430074, China, shanhuimei1985@163.com, (2) Key Laboratory of Biogeology and Environmental Geology of Ministry of Education, China University of Geosciences, 388 Lumo Road, Wuhan City, Hubei Province, P. R. China, Wuhan, 430074, China

VOORHIS, James C., Earth Sciences, Dartmouth College, HB 6105, Dartmouth College, Hanover, NH 03755, james.c.voorhis.gr@dartmouth.edu and RENOCK, Devon, Department of Earth Sciences, Dartmouth College, Hanover, NH 03755

JAMIESON, Heather E.¹, BROMSTAD, Mackenzie¹, NORDSTROM, D. Kirk², PLUMLEE, Geoffrey S.³, and MORMAN, Suzette A.⁴, (1) Geological Sciences and Geological Engineering, Queen's University, Kingston, ON K7L 3N6, Canada, jamieson@geol.queensu.ca, (2) U.S. Geological Survey, Boulder Labs, 3215 Marine St, Boulder, CO 80303, (3) U.S. Geological Survey, MS 964 Denver Federal Center, Denver, CO 80225, (4) USGS, MS 964 Denver Federal Center, Denver, CO 80225

SPEAR, John R.¹, CORSETTI, Frank A.², and BERELSON, William M.², (1) Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401-1887, jspear@mines.edu, (2) Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089

OZE, Christopher, COX, Toni L., and HORTON, Travis, Geological Sciences, University of Canterbury, Christchurch, 8140, New Zealand, christopher.oze@canterbury.ac.nz

MOORE, Anni, Department of Biological Sciences, Northern Illinois University, DeKalb, IL 60115, anni.moore@yahoo.com, DUVALL, Melvin, Biological Sciences, Northern Illinois University, DeKalb, IL 60115, LENCZEWSKI, Melissa, Department of Geology and Environmental Geosciences, Northern Illinois University, Davis Hall 312, DeKalb, IL 60115, LEAL BAUTISTA, Rosamaria, Centro de Investigacion Cientifica Yucatan, A.C, Cancun, Quintana Roo, 77500, Mexico, and KRMENEC, Andrew, Department of Geography, Northern Illinois University, DeKalb, IL 60115

ROSEN, Michael R., US Geological Survey, 2730 North Deer Run Road, Carson City, NV 89701, mrosen@usgs.gov, HUNTINGTON, Jena, U.S. Geological Survey, 2730 N. Deer Run Rd, Carson City, NV 89701, and GARCIA, C. Amanda, U.S. Geological Survey, 2730 N. Deer Run Road, Carson City, NV 89701

NORDSTROM, D. Kirk, U.S. Geological Survey, Boulder Labs, 3215 Marine St, Boulder, CO 80303, dkn@usgs.gov