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Members and agencies

Wisconsin Groundwater Coordinating Council

The GCC consists of the heads of all state agencies with some responsibility for groundwater management plus a Governor’s representative.

The state agencies include the Departments of Natural Resources (DNR); Agriculture, Trade and Consumer Protection (DATCP); Health Services (DHS); Transportation (DOT); Department of Safety and Professional Services (DSPS); the University of Wisconsin System (UWS); and the Wisconsin Geological and Natural History Survey (WGNHS). The agency heads have appointed high–level administrators who have groundwater responsibilities to sit on the Council.

Department of Natural Resources (DNR) – James Zellmer (Chair)

Jim Zellmer oversees the Drinking Water & Groundwater, Office of Great Waters and Water Quality programs in the Department's Environmental Management Division.

Jim has over 30 years of experience working both in Central Office and the Green Bay field office. Before becoming Deputy Division Administrator in May 2016, Jim served in a temporary assignment as Deputy Director of the Waste & Materials Management Program. He worked for 20 years in the Green Bay office as a Plan Review Engineer, Field Supervisor and an Integrator. Prior to that, Jim worked in Central Office in the Drinking Water & Groundwater Program.

Jim's education includes a B.S. in Water Resources from UW-Stevens Point and a Master's Degree in Civil and Environmental Engineering from UW-Madison.

Department of Agriculture, Trade, and Consumer Protection (DATCP) [exit DNR] – Mark McColloch

Mark McColloch, P.G. is the Environmental Quality (EQ) Unit Supervisor for the Agrichemical Bureau of the Agrichemical Resource Management Division at DATCP. Primary responsibilities for the EQ Unit include regulatory oversight of spills and long term remedial cases for the Agrichemical Cleanup Program (ACCP), ACCP reimbursement for cleanup, several non-point source groundwater monitoring programs, and oversight of groundwater research projects. He joined DATCP in 2017 after 29 years of working for environmental consultant firms in Madison. Project experience includes numerous contaminant site investigations, evaluation of remedial alternatives, and remediation of contaminated soil, groundwater, and sediment. Mark earned a B.S. in Geology from the University of Iowa and a M.S in Geologic Engineering from the University of Missouri at Rolla.

Department of Health Services (DHS) [exit DNR] – Dr. Jonathan Meiman

Dr. Jonathan Meiman is the Chief Medical Officer/State Environmental and Occupational Disease Epidemiologist in the Department of Health Services' Bureau of Environmental and Occupational Health (BEOH). Dr. Meiman previously served as a CDC Career Epidemiology Field Officer with the Office of Preparedness and Emergency Healthcare (OPEHC), where he worked building healthcare coalitions and developing state emergency response plans. Before joining OPEHC, Dr. Meiman was a CDC Epidemiology Intelligence Service Officer with BEOH, pursuing a variety of investigations, including surveillance of weather-related mortality, occupational poisonings and analyses of heroin-related overdoses in Wisconsin. During his time as an EISO, he traveled to Saudi Arabia where he helped to implement a Middle East respiratory syndrome coronavirus (MERS-CoV) study. Dr. Meiman was also deployed to Sierra Leone where he led a local Ebola outbreak investigation.

Dr. Meiman completed his family medicine residency at the University of Wisconsin-Madison. He earned his medical degree from the University of Alabama at Birmingham and Bachelor of Science at Tulane University. He developed a passion for public health early in his medical career and was actively involved during residency studying pediatric respiratory diseases. He continues to practice medicine at Wingra Clinic.

Department of Transportation (DOT) [exit DNR] – Robert Pearson

Robert Pearson is a hydrogeologist managing the remediation of contaminated properties and the Wetland Mitigation Bank Program for the Department of Transportation (DOT). He navigates complex environmental liability issues and policy decisions for the department and provides technical assistance throughout the organization. Bob also partners with stakeholders outside the agency on a range of environmental and research topics including negotiating interagency agreements. Since 1994, he has worked with the Wisconsin GCC on multiple subcommittees and initiatives and represents the department on the Wisconsin PFAS Action Council.

Bob is a WI registered professional geologist and holds a B.A. in Geology from Monmouth College, Monmouth IL, and an M.S. in Geosciences from the University of Wisconsin Milwaukee. Prior to DOT, he spent several years in the private sector in environmental consulting engineering and worked in the petroleum exploration industry as a field geologist. He is a former board member and president of the Wisconsin Groundwater Association.

University of Wisconsin System (UWS) [exit DNR] – Dr. James P. Hurley

Dr. James Hurley is an Associate Professor of Civil and Environmental Engineering at the University of Wisconsin–Madison and Director of the University of Wisconsin Aquatic Sciences Center (UW–ASC). The UW–ASC is the home of two federal–state partnership programs, the UW Sea Grant Institute and the UW Water Resources Institute. Each institute supports multidisciplinary research, education and outreach for the protection and sustainable use of Wisconsin’s water resources and operates as strong regional and national networks. Hurley holds a M.S. and Ph.D. in Water Chemistry (1988) from UW–Madison and has conducted water resources research, with a focus on mercury cycling, through positions both at the Wisconsin Department of Natural Resources and UW–Madison. He currently serves as co–chair of the Wisconsin Initiative on Climate Change Impacts (WICCI) Science Advisory Board, and was recently named president–elect of the national Sea Grant Association.

Wisconsin Geological and Natural History Survey (WGNHS) [exit DNR] – Dr. Ken Bradbury

Dr. Ken Bradbury is the Wisconsin State Geologist and Director of the Wisconsin Geological and Natural History Survey (WGNHS). Ken joined the Survey in 1982 as a hydrogeologist after completing his Ph.D. in geology at UW-Madison. Prior to that, he earned a bachelor's degree at Ohio Wesleyan and a master's degree at Indiana University, both in geology. His research in Wisconsin has contributed to important insights into flow through fractured rocks, transport of viruses in the subsurface, wellhead protection, regional hydrogeology and recharge processes. Since 2013 he has served as the Survey's Assistant Director for Science.

Ken participates as a technical expert in a myriad of controversial issues across the state focusing on objective and applied scientific research. Ken has served on panels for the National Research Council and was awarded a Fulbright grant to work in South Africa in 2008. He is a fellow of the Geological Society of America and received the 2007 Distinguished Service Award from the Wisconsin Section of the American Water Resources Association, the 2013 Chancellor's Award from UW-Extension, the 2013 Research Award from the Wisconsin Water Association and the 2015 Distinguished Alumni Award from the UW-Madison Department of Geoscience. Ken has been sought after for teaching and research across Wisconsin as well as in Ireland, South Africa, Latvia and Australia.

Department of Safety and Professional Services [exit DNR] – Bradley Johnson

Bradley Johnson currently serves as a Section Chief with the Department of Safety and Professional Services where he is involved in evaluating, improving and implementing the business model and mission for all of its programs with specific emphasis in the POWTS Program. In addition to leading the POWTS program, he was previously involved in leading the Division's Fire Prevention and Storm Water programs. Prior to his current position with DSPS, Brad was employed by the Wisconsin DNR and the Wisconsin Department of Commerce.

Bradley graduated from the University of Wisconsin–Madison with a Bachelor of Science Degree in Civil and Environmental Engineering and is registered as a Professional Engineer in the State of Wisconsin.

Governor’s Representative [exit DNR] – Steve Diercks

Steve Diercks is a third generation Wisconsin potato and vegetable grower, born and raised in Antigo. He has a degree in Agricultural Economics from the University of Wisconsin-Madison. With son Andy, Steve owns and operates Coloma Farms, with over 2700 acres of potato and vegetable crops in central Wisconsin. Steve is an agricultural industry leader at the forefront of research on and development of sustainable agricultural practices. Coloma Farms has been at the center of numerous collaborative projects with UW scientists to evaluate sustainable farming practices. He is a member of the Wisconsin Potato and Vegetable Growers Board of Directors and serves on its Research Committee. Nationally, he has represented Wisconsin on the US Potato Board. “As the Governor’s Representative,” Diercks says, “I appreciate the opportunity to share examples of industry collaboration to achieve Wisconsin’s important groundwater management recommendations — and seek broad input from all concerned parties to determine potential solutions to groundwater issues.”

Report to the legislature