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 Environmentally Integrated Dairy Management Research: Madison, WI
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ARS Home Midwest Area Madison, Wisconsin U.S. Dairy Forage Research Center Environmentally Integrated Dairy Management Research People





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- Matt Akins
- Meridith Anderson
- Lisa Bauman
- Robin Brewster
- Tucker Burch
- Rachel Cook
- Joseph Hattamer
- Joseph Heffron
- David Jaramillo
- Robin Ogden
- Sarah Opelt
- Jessica Sherman
- Eric Young

Sarah  Opelt    Biological Science Lab Technician /ARSUserFiles/58009/Opelt photo 2023.jpeg
 Sarah OpeltBiological Science Lab Technician 715-387-4609 2615 Yellowstone Dr. Marshfield, WI 54449 Sarah is a member ofDr. Burch's lab team and joined theEnvironmentally Integrated Dairy Management Research : USDA ARS in January of 2022.
 Publications(Clicking on the reprint iconReprint Icon  will take you to the publication reprint.)Des Moines water trails: health risk from waterborne pathogens during recreational water use-(Government Publication) Burch, T.R., Stokdyk, J.P., Firnstahl, A.D., Opelt, S.A., Cook, R.M., Borchardt, M.A. 2024. Des Moines water trails: health risk from waterborne pathogens during recreational water use. Government Publication/Report. https://www.polkcountyiowa.gov.Human and livestock fecal source tracking for antibiotic resistance genes in rural private well water-(Abstract Only)Alternative hemodialysis ultrafilter for sampling microbes in water-(Abstract Only)Combining microbial source tracking with quantitative microbial risk assessment in recreational water contaminated by mixed fecal sources, Iowa, USA-(Abstract Only)Temporal and spatial variation of nitrate, fecal indicator bacteria, and microbial source tracking markers in private well water from a karst aquifer-(Abstract Only)Evaluating association of runoff risk advisory forecasts with private well contamination in Kewaunee County, WI-(Abstract Only) Cook, R.M., Opelt, S.A., Firnstahl, A.D., Sherman, J.F., Burch, T.R., Heffron, J.A., Young, E.O., Wayne, R., Good, L., Stokdyk, J.P., Borchardt, M.A. 2024. Evaluating association of runoff risk advisory forecasts with private well contamination in Kewaunee County, WI. American Water Resources Association Conference Proceedings. April 25-26, 2024.Fecal source tracking for antibiotic resistance genes in private wells in southwest Wisconsin-(Abstract Only) Stokdyk, J.P., Opelt, S.A., Firnstahl, A.D., Cook, R.M., Heffron, J.A., Burch, T.R. 2024. Fecal source tracking for antibiotic resistance genes in private wells in southwest Wisconsin. American Water Resources Association Conference Proceedings. April 25-26, 2024.Alternative hemodialysis ultrafilter for sampling microbes in water-(Abstract Only) Firnstahl, A.D., Doughan, G., Opelt, S.A., Cook, R.M., Heffron, J.A., Borchardt, M.A., Karriker, L.A., Stokdyk, J.P., Burch, T.R. 2024. Alternative hemodialysis ultrafilter for sampling microbes in water. American Water Resources Association Conference Proceedings. April 25-26, 2024.Health risk from waterborne human and livestock pathogens during swimming, kayaking, and fishing-(Abstract Only) Burch, T.R., Stokdyk, J.P., Firnstahl, A.D., Opelt, S.A., Cook, R.M., Heffron, J.A., Brown, A., Hruby, C., Borchardt, M.A. 2024. Health risk from waterborne human and livestock pathogens during swimming, kayaking, and fishing. American Water Resources Association-Wisconsin Section Annual Meeting, Appleton, WI.April 25-26, 2024.Fecal source tracking and land use associations for antibiotic resistance genes in private wells-(Abstract Only) Stokdyk, J.P., Burch, T.R., Firnstahl, A.D., Kieke, B.A., Cook, R.M., Opelt, S.A., Spencer, S.K., Durso, L.M., Borchardt, M.A. 2024. Fecal source tracking and land use associations for antibiotic resistance genes in private wells. Emerging Contaminants in the Environment Conference, Urbana-Champaign, IL. April 24-25, 2024.Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources-(Peer Reviewed Journal) Burch, T.R., Stokdyk, J.P., Firnstahl, A.D., Kieke, B.A., Cook, R.M., Opelt, S.A., Spencer, S.K., Durso, L.M., Borchardt, M.A. 2022. Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources. Journal of Environmental Quality. 52(2):270-286. https://doi.org/10.1002/jeq2.20443.ProjectsNo projects listed for this employee.ARS News ArticlesNo news articles listed for this employee.


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