1. Environmentally Integrated Dairy Management Research Unit, U.S. Dairy Forage Research Center, U.S. Department of Agriculture–Agricultural Research Service (USDA-ARS), Marshfield, Wisconsin, USA
2. Upper Midwest Water Science Center, U.S. Geological Survey, Marshfield, Wisconsin, USA
3. Center for Clinical Epidemiology and Population Health, Marshfield Clinic Research Institute, Marshfield, Wisconsin, USA
4. Wisconsin Geological and Natural History Survey, Madison, Wisconsin, USA
5. Kewaunee County Department of Land and Water Conservation, Luxemburg, Wisconsin, USA
6. Upper Midwest Water Science Center, U.S. Geological Survey, Middleton, Wisconsin, USA