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Martine Savard NRC/GSC 490 de la Couronne Quebec G1K 9A9 CANADA Ph: +1 418 654 2634 Fax: +1 418 654 2615 msavard@nrcan.gc.ca
Thomas D. Bullen Water Resources Division U.S. Geological Survey MS 420, 345 Middlefield Road Menlo Park, CA 94025 USA Ph: +1 650-329-4577 tdbullen@usgs.gov