Sarah Opelt
Biological Science Lab Technician

715-387-4609

2615 Yellowstone Dr.
Marshfield, WI 54449

Sarah is a member of Dr. Burch's lab team and joined the Environmentally Integrated Dairy Management Research : USDA ARS in January of 2022. 

• Publications

  • (Clicking on the reprint icon will take you to the publication reprint.)
  • Source-tracking health risk from waterborne human and zoonotic pathogens during recreational water use-(Abstract Only)
    
    
  • Health risk from waterborne human, livestock, and wildlife pathogens during outdoor recreational water use-(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, livestock, and wildlife pathogens during outdoor recreational water use. Minnesota Water Resources Conference. October 15-16, 2024.
    
  • 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.
    
  • Quantitative microbial risk assessment with microbial source tracking for mixed fecal sources contaminating recreational river waters, Iowa, USA -(Peer Reviewed Journal)
    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. Quantitative microbial risk assessment with microbial source tracking for mixed fecal sources contaminating recreational river waters, Iowa, USA. ES&T Water. https://doi.org/10.1021/acsestwater.3c00652.
    
  • Human and livestock fecal source tracking for antibiotic resistance genes in rural private well water-(Abstract Only)
    Stokdyk, J.P., Opelt, S.A., Firnstahl, A.D., Cook, R.M., Heffron, J.A., Muldoon, M., Burch, T.R. 2024. Human and livestock fecal source tracking for antibiotic resistance genes in rural private well water. American Society for Microbiology Annual Meeting. June 13-17, 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 Society for Microbiology Annual Meeting. June 13-17, 2024.
    
  • Combining microbial source tracking with quantitative microbial risk assessment in recreational water contaminated by mixed fecal sources, Iowa, USA-(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. Combining microbial source tracking with quantitative microbial risk assessment in recreational water contaminated by mixed fecal sources, Iowa, USA. American Society for Microbiology Conference. June 13-17, 2024.
    
  • Temporal and spatial variation of nitrate, fecal indicator bacteria, and microbial source tracking markers in private well water from a karst aquifer-(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. Temporal and spatial variation of nitrate, fecal indicator bacteria, and microbial source tracking markers in private well water from a karst aquifer. American Society for Microbiology Annual Meeting. June 13-17, 2024.
    
  • 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.