Mark Borchardt, Ph.D is a Research Microbiologist in the Environmentally Integrated Dairy Management Research Unit in Marshfield, Wisconsin. Prior to this, he was a Research Scientist for 15 years at the Marshfield Clinic Research Foundation. His published research involves the areas of groundwater-borne viruses, methods of pathogen detection in the environment, and human health as related to drinking water and sanitation. In his position, Dr. Borchardt is investigating solutions for mitigating the environmental transmission of pathogens found in livestock manure.
Dr. Borchardt served on the drinking water, homeland security, and state of the environment committees of the US Environmental Protection Agency Science Advisory Board.
John Chastain, Ph.D. is currently a Professor and Extension Agricultural Engineer at Clemson University in South Carolina. He develops and implements extension and applied research programs in animal waste management and production systems for swine, poultry, and dairy facilities. Much of his work has been related to solid-liquid separation, land application of animal manure, composting, and manure system design. Prior to moving to South Carolina he was on faculty at the University of Minnesota where worked with outstanding faculty and Extension Agents on all aspects of dairy facilities planning and design. A native of Georgia, he received his BS in Agricultural Engineering from the University of Georgia, and his MS and his Ph.D. degrees in Agricultural Engineering from the University of Kentucky.
Shulin Chen’s research emphasis is in the area of Bioenergy and Bioproducts Engineering. He leads a research team of over twenty scientists, graduate students, and visiting scholars working in the field of industrial biotechnology; developing bioconversion processes and systems for the production of biofuel, bioenergy, and bioproducts.
Rebecca Larson, Ph.D. is an Assistant Professor in the Biological Systems Engineering Department at the University of Wisconsin-Madison and a Biowaste Specialist with the University of Wisconsin-Extension. Dr. Larson performs research and extension/outreach applications of biowaste management including handling, treatment, and processing of all types of biological waste streams and in particular manure. Her work is largely comprised of manure management systems focusing on increasing the profitability and sustainability of food production systems while simultaneously reducing the environmental aspect. Dr. Larson is a Biological Systems Engineer by training, earning her B.S., M.S., and Ph.D. degrees from the Department of Agricultural Biosystems Engineering at Michigan State University.
Sara Walling, M.S. serves as Agriculture Institute Director for UW-Extension Department of Agriculture and Natural Resources. Walling joined Cooperative Extension from the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) where she has held positions in several capacities during her 12 years there, all of which have involved working with agricultural producers, landowners and partner agencies on agricultural management issues. Most recently, she served nearly six years as the Nutrient Management and Water Quality Section Chief where she and her staff focused on farm conservation practices, especially nutrient and crop management, soil erosion control practices and agricultural impact statement development for public utility projects.
Prior to that position, she served as a policy advisor to the DATCP Secretary on bioenergy, environmental and related issues and led the Wisconsin Bioenergy Council. Additional experiences include five years at DATCP working as a Nutrient Management and Water Quality Specialist, and three years at the USDA ARS National Soil Erosion Research Lab in Lafayette, Indiana.
Walling has a Master of Science degree in Land Resources and Environmental Sciences from Montana State University–Bozeman and a Bachelor of Science from the University of Minnesota–Twin Cities.