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AECOM
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Aero-Environmental Consulting, LLC
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Aggregate Industries
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All-Phase Environmental Consultants, Inc.
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American Engineering Testing, Inc.
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American Petrographic Services, Inc.
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AMI Consulting Engineers, P.A.
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Antea Group
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Applied Engineering, Inc.
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ARCADIS
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ArcelorMIttal Minorca (owns Hibbing Taconite (partial))
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ATC Group Services, LLC
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Barr Engineering Co.
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Bay West, LLC
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Big Rock Exploration
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Bolander
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BP America
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Braun Intertec Corp.
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Burlington Northern Santa Fe Railway Company
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Burns and McDonnell
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Caltha, LLP
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Canadian Pacific Railway
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Carlson McCain, Inc.
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Cemstone
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Cleveland-Cliffs, Inc. (owns Hibbing Taconite Company (partial), United Taconite, and Northshore Mining)
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Conoco Phillips Company
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Dakota Aggregates
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Dakota Technologies, Inc.
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de maximus Data Management Solutions, Inc.
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Environmental Troubleshooters, Inc.
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Envirotech Services, Inc.
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ERM Group, Inc.
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Exxon Mobil Corporation
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Foth
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Geosyntec Consultants, Inc.
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Glacial Lakes Environmental Consulting
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Golder Associates
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Groundwater and Environmental Services, Inc.
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Legend Technical Services, Inc.
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HDR Engineering, Inc.
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Historical Information Gatherers, Inc.
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HR Green, Inc.
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Idea Drilling
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Impact 7 G
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Itasca Consulting Group, Inc.
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The Javelin Group, Inc.
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Krech Ojard & Associates
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Lake Superior Consulting, LLC
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Landmark Environmental, LLC
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Martin Marietta
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Mesabi Mettalics Company, LLC
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Midwestern Drilling, LLC
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Mineral Logic, LLC
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Mortenson (2022 Section Sponsor)
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MSA Professional Services, Inc.
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NAQS
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National Ground Penetrating Radar Service, Inc.
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Northeast Technical Services, Inc.
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Nova Consulting Group, Inc.
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Newmont Mining Corporation
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Pace Analytical Services, LLC
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Pinnacle Engineering Group
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Pointmap, Inc.
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Professional Services, Inc.
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ProSource Technologies, LLC
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Raimonde Drilling Corporation
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RNAS Remediation Products, Inc.
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Ryan Companies US, Inc.
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Shell United States
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Short Elliot Hendrickson, Inc.
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Stantec Consulting Services, Inc.
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State of Minnesota (geologists mainly employed at Pollution Control Agency, Department of Health, Department of Agriculture, and Department of Transportation)
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Steel Dynamics (owns Mining Resources and Mesabi Nugget)
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Summit Envirosolutions, Inc.
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Terracon Consultants, Inc.
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Tetra Tech, Inc.
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Thatcher Engineering & Associates, Inc.
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Thein Well Company
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TKDA
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Traut Companies
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Ulland Brothers, Inc.
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U.S. Geological Survey (Minnesota Water Resource Center in Mounds View & Grand Rapids)
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U.S. Steel (owns U.S. Steel - Keetac, U.S. Steel - Minntac, and Hibbing Taconite (partial))
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Veit USA
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Vermillion Gold, Inc.
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Vieau Associates, Inc.
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West Central Environmental Consultants
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Weston Solutions
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Westwood Professional Services
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Widseth Smith Nolting
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WSB & Associates
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WSP USA