Department of Hydrology and Water Resources, University of Arizona, Tucson, AZ 85721 United States
Department of Hydrology and Water Resources, University of Arizona, Tucson, AZ 85721 United States ; Geochemical Technologies Corp., 3760 Vance St, Suite 200, Wheat Ridge, CO 80033 United States
Department of Hydrology and Water Resources, University of Arizona, Tucson, AZ 85721 United States