BORDELEAU, Geneviève, Centre Eau Terre Environnement, Institut national de la recherche scientifique (INRS), 490 de la Couronne, Québec, QC., QC G1K 9A9, CANADA, RIVARD, Christine, Chercheure scientifique / Research scientist, Commission géologique du Canada - Division Qc / Geological Survey of Canada - Qc Division, 880 Ch. Ste-Foy, Bureau 840, Quebec, Quebec G1S 2L2, CANADA, ROY, Jim, Environment Canada, Burlington, ON L7S1A1, CANADA and RYAN, M. Cathy, Department of Geoscience, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada