NAS Seminar features ‘Dairy Manure and Human Wastewater Contamination’ Oct. 13

In the next NAS Seminar, Mark  A. Borchardt, Ph.D, USDA, Agricultural  Research  Service, Laboratory for Infectious Disease and  the  Environment, tackles the topic, “Dairy  Manure and Human Wastewater Contamination in the Dolomite Aquifer in Northeastern Wisconsin.” The presentation begins at 3:30 p.m. in ES 301 and is preceded by refreshments in ES 317 at 3 p.m. It is free and open to the public. Abstract: The quality of the dolomite aquifer in Northeast Wisconsin has become a contentious issue as dairy farms and exurban development expand. We addressed two questions: 1) Does well water contamination vary with the thickness of sediment overlying the bedrock aquifer? 2) What is the primary fecal source of well-water contamination, cattle or people?

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