GAMMONS, Christopher and LEE, Joshua, Geological Engineering, Montana Tech of The University of Montana, 1300 West Park Street, Butte, MT 59701, cgammons@mtech.edu, cgammons@mtech.edu

TORRANCE, Keith W.¹, KEENAN, Helen E.¹, MUNK, LeeAnn² and HAGEDORN, Birgit³, (1)Dept. of Civil Engineering, University of Strathclyde, 50 Richmond St, Glasgow, G1 1XN, United Kingdom, (2)Department of Geological Sciences, University of Alaska, 3101 Science Circle, Anchorage, AK 99508, (3)Applied Science and Technology Laboratory, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, AK 99508, keith.torrance@strath.ac.uk, keith.torrance@strath.ac.uk

BONIN, B.J., WSB and Associates, 701 Xenia Ave. S Suite 300, Minneapolis, MN 55416, bbonin@wsbeng.com, bbonin@wsbeng.com

OYEWUMI, Oluyinka, Department of Earth & Atmospheric Sciences, SUNY College at Oneonta, 209 Science Building 1, Oneonta, NY 13820 and SCHREIBER, Madeline, Department of Geosciences, Virginia Polytechnic Institute and State University, Derring Hall 4044, Blacksburg, VA 24061-0420, oyewumo@oneonta.edu, oyewumo@oneonta.edu

KRETSINGER GRABERT, Vicki J. and DALGISH, Barbara A., Luhdorff & Scalmanini, Consulting Engineers, 500 First Street, Woodland, CA 95695, vkretsinger@lsce.com, vkretsinger@lsce.com

CÁCERES, Luis Fernando¹, VALDEZ, Sulema N.², CHOQUE, Rigoberto³, RAMOS, Oswaldo⁴, CHOQUE, Rocio M.¹ and FERNANDEZ, Samuel⁵, (1)Dirección de Medio Ambiente, Corporación Minera de Bolivia, Av. Villazón 1966, La Paz, 10421, Bolivia, (2)Especialidades Químicas, Av. Chacaltaya 648, La Paz, 10421, Bolivia, (3)Especialidades Quimicas, Av. Chacaltaya 648, La Paz, 10421, Bolivia, (4)Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, Campus Universitario, Calle 27, Cota Cota, La Paz, 303, Bolivia, (5)Especialidades Quimicas, Especialidades Químicas, Av. Chacaltaya 648, La Paz, 10421, Bolivia, caceresluisfer@yahoo.es, caceresluisfer@yahoo.es

BECKIE, Roger D.¹, PAL, Taraknath², DESBARATS, Alexander J.³, MUKHERJEE, Pradip² and KOENIG, Cassandra E.M.⁴, (1)Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada, (2)Geological Survey of India, 15 A & B Kyd Street, Kolkata, 700 016, India, (3)Geological Survey of Canada, 601 Booth Street, Ottawa, ON K1A0E8, Canada, (4)Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada, rbeckie@eos.ubc.ca, rbeckie@eos.ubc.ca

BHATTACHARYA, Prosun¹, BISWAS, Ashis², NATH, Bibhash³, CHATTERJEE, Debashis⁴, HALDER, Dipti² and MUKHERJEE, Abhijit⁵, (1)KTH-International Groundwater Arsenic Research Group, Department of Land and Water Resources Engineering, Royal Institute of Technology (KTH), Teknikringen 76, Stockholm, SE-10044, Sweden, (2)Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, SK S7N5E2, Canada, (3)School of Geosciences, University of Sydney, Sydney, 2006, Australia, (4)Department of Chemistry, University of Kalyani, Kalyani, 741235, India, (5)Department of Geology and Geophysics, Indian Institute of Technology (IIT), Kharagpur, 721302, India, ashis@kth.se, ashis@kth.se

EASTRIDGE, Emily M.¹, MUKHERJEE, Abhijit², HATCH, Rachel¹ and FRYAR, Alan E.³, (1)Department of Earth and Environmental Sciences, University of Kentucky, 101 Slone Building, University of Kentucky, Lexington, KY 40506, (2)Department of Geology and Geophysics, Indian Institute of Technology (IIT), Kharagpur, 721302, India, (3)Earth & Environmental Sciences, University of Kentucky, 101 Slone Building, Lexington, KY 40506-0053, alan.fryar@uky.edu, alan.fryar@uky.edu

NEAL, Andrew¹, MOHAJERIN, Jade², JOHANNESSON, Karen², HETTIARACHCHI, Ganga³ and DATTA, Saugata⁴, (1)Department of Geology, Kansas State University, 104 Thompson Hall, Manhattan, KS 66506, (2)Department of Earth and Environmental Sciences, Tulane University, 101 Blessey Hall, New Orleans, LA 70118-5698, (3)Department of Agronomy, Kansas State University, 2107 Throckmorton Plant Sciences Center, Manhattan, KS 66506, (4)Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, KS 66506, nealwiser@gmail.com, nealwiser@gmail.com

JOHNSTON, Richard B.¹, BRETZLER, Anja², AMINI, Manouchehr³ and JOHNSON, Annette², (1)Sandec - Department of Water and Sanitation in Developing Countries, Eawag - Swiss Federal Institute of Aquatic Science and Technology, Dubendorf, 8600, Switzerland, (2)Water Resources and Drinking Water, Eawag - Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, Dubendorf, 8600, Switzerland, (3)System Analysis and Modeling, Eawag - Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, Dubendorf, 8600, Switzerland, richard.johnston@eawag.ch, richard.johnston@eawag.ch

HOQUE, Mohammad A. and BURGESS, William G., Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, United Kingdom, william.burgess@ucl.ac.uk, william.burgess@ucl.ac.uk

RAHMAN, Md. Tauhid-Ur-¹, MANO, Akira², UDO, Keiko², ISHIBASHI, Yoshinobu³ and HAN, Youn Hee³, (1)Civil and Environmental Engg, Shahjalal University, Sylhet, 3114, Bangladesh, (2)Disaster Control Research Center, Graduate School of Civil Engg, Tohoku University, Aoba 6-6-11-1110, Sendai, Miyagi, 980-8579, Japan, (3)Department of Civil and Environmental Engineering, Tohoku Gakuin University, 1-13-1 Chuo, Tagajo, Miyagi Pref, 985-8537, Japan, liton2005@gmail.com, liton2005@gmail.com

MOZUMDER, M. Rajib Hassan¹, BHATTACHARYA, Prosun², AHMED, Kazi Matin³, HOSSAIN, Mohammed⁴, HASAN, M. Aziz⁵, ISLAM, M. Mainul⁶, JACKS, Gunnar⁴ and VON BRÖMSSEN, Mattias⁷, (1)Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9w, Palisades, NY 10964, (2)KTH-International Groundwater Arsenic Research Group, Department of Land and Water Resources Engineering, Royal Institute of Technology (KTH), Teknikringen 76, Stockholm, SE-10044, Sweden, (3)Department of Geology, University of Dhaka, Dhaka, Dhaka 1000, Bangladesh, (4)KTH-International Groundwater Arsenic Research Group, Dept of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, Teknikringen 76, Stockholm, SE-10044, Sweden, (5)Department of Geology, University of Dhaka, Bangladesh, Dhaka-1000, Bangladesh, (6)NGO Forum for Drinking Water Supply and Sanitation, 4/6, Block-E, Lalmatia, Dhaka, 1207, (7)Ramböll Sweden AB, Box 4205, Stockholm, SE-102 65, Sweden, prosun@kth.se, prosun@kth.se

AL, Ramanathan¹, NIL, Kushagra², PRABHA, Shashi² and BHATTACHARYA, Prosun³, (1)School of Environmental Sciences, Jawharlal Nehru University, SW-1, Wardens Flat, Sutlej Hostel, New Delhi, 110067, India, (2)School of Environmental Sciences, Jawaharlal Nehru University, New Meharauli Road, SW-1, Wardens Flat, Sutlej Hostel, New Delhi, 110067, India, (3)KTH-International Groundwater Arsenic Research Group, Department of Land and Water Resources Engineering, Royal Institute of Technology (KTH), Teknikringen 76, Stockholm, SE-10044, Sweden, alrjnu@gmail.com, alrjnu@gmail.com