RES AGRI ENGR
Joe Heffron
Research Agriculture Engineer
2615 Yellowstone Dr.
Marshfield, WI 54449
Dr. Heffron joined the Environmentally Integrated Dairy Management Research : USDA ARS team in July of 2022. Dr. Heffron's research specializes in beneficial microbial communities in agricultural infrastructure and the environment.
Heffron, J.A., Cook, R.M., Firnstahl, A.D., Stokdyk, J.P., Burch, T.R. 2024. Recharge drives microbial heterogeneity in a karst aquifer of the northern United States. Swiss Society of Microbiology. August 28 - 30, 2024.
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.
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.
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.
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.
Heffron, J.A., Cook, R.M., Firnstahl, A.D., Stokdyk, J.P., Burch, T.R. 2024. Community-level microbial responses to recharge and fecal contamination in a karst aquifer. American Society for Microbiology Annual Meeting. June 13-17,2024.
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.
Heffron, J.A., Cook, R.M., Firnstahl, A.D., Stokdyk, J.P., Burch, T.R. 2024. Impact of recharge and fecal contamination on microbial communities in a karst aquifer. American Water Resources Association Conference Proceedings. April 25-26, 2024.
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.
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.
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.
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.
Heffron, J.A., Samsami, M., Juedemann, S., Lavin, J., Tavakoli Nick, S., Kieke, B.A., Mayer, B.K. 2024. Mitigation of viruses of concern and bacteriophage surrogates via common unit processes for water reuse: a meta-analysis. Water Research. https://doi.org/10.1016/j.watres.2024.121242.
Managing Nutrients and Assessing Pathogen Emission Risks for Sustainable Dairy Production Systems In-House Appropriated (D) Accession Number:441102 A Collaborative Environmental Microbiology Lab to Support Research Objectives of the USDA-ARS EIDMRU and USGS Upper Midwest Water Science Center Non-Funded Cooperative Agreement (N) Accession Number:444891 Sampling for Porcine Reproductive and Respiratory Syndrome Virus in Groundwater Near Commercial Swine Farms Non-Funded Cooperative Agreement (N) Accession Number:446192 Statistical Design and Methods Non-Assistance Cooperative Agreement (S) Accession Number:437852 Statistical Design and Methods Non-Assistance Cooperative Agreement (S) Accession Number:446108
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Meet the team
From left to right back row: Tucker Burch, Aaron Firnstahl (USGS), Joe Heffron
From left to right front row: Joel Stokdyk (USGS), Rachel Cook, Sarah Opelt