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                    U.S. DEPARTMENT OF AGRICULTURE
 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 & Locations







Mark  Borchardt
                        Environmentally Integrated Dairy Management Research

                        




                        
                        Microbiologist
                        Phone: (715) 387-4943
                        
                        
                        Fax: (Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsInstitutional Biological Safety Committee (IBC) Agreement - University of Wisconsin Madison
                                                    Non-Funded Cooperative Agreement
                                                                    (N)Accession Number: 441643**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)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)Alternative hemodialysis ultrafilter for sampling microbes in water

- (Abstract Only)Health risk from waterborne human and livestock pathogens during swimming, kayaking, and fishing

- (Abstract Only)Evaluating association of runoff risk advisory forecasts with private well contamination in Kewaunee County, WI

- (Abstract Only)Quantitative microbial risk assessment for ingestion of antibiotic resistance genes from private wells contaminated by human and livestock fecal sources
                                                        

- (Peer Reviewed Journal)Burch, T.R., Stokdyk, J.P., Durso, L.M., Borchardt, M.A. 2024. Quantitative microbial risk assessment for ingestion of antibiotic resistance genes from private wells contaminated by human and livestock fecal sources. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.01629-23.Fecal source tracking and land use associations for antibiotic resistance genes in private wells

- (Abstract Only)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.Assessing private well contamination in Grant, Iowa, and Lafayette counties, Wisconsin: The southwest Wisconsin groundwater and geology study

- (Government Publication)Stokdyk, J., Borchardt, M.A., Firnstahl, A., Bradbury, K., Muldoon, M., Kieke, B. 2022. Assessing private well contamination in Grant, Iowa, and Lafayette counties, Wisconsin: The southwest Wisconsin groundwater and geology study. Government Publication/Report. 2022.Statewide quantitative microbial risk assessment for waterborne viruses, bacteria, and protozoa in public water supply wells in Minnesota
                                                        

- (Peer Reviewed Journal)Burch, T.R., Stokdyk, J.P., Rice, N., Anderson, A.C., Walsh, J.F., Spencer, S.K., Firnstahl, A.D., Borchardt, M.A. 2022. Statewide quantitative microbial risk assessment for waterborne viruses, bacteria, and protozoa in public water supply wells in Minnesota. Environmental Science and Technology. 56(10):6315-6324. https://doi.org/10.1021/acs.est.1c06472.Fate and seasonality of antimicrobial resistance genes during full-scale anaerobic digestion of cattle manure across seven livestock production facilities
                                                        

- (Peer Reviewed Journal)Burch, T.R., Firnstahl, A.D., Spencer, S.K., Larson, R.A., Borchardt, M.A. 2022. Fate and seasonality of antimicrobial resistance genes during full-scale anaerobic digestion of cattle manure across seven livestock production facilities. Journal of Environmental Quality. 51(3):352-363. https://doi.org/10.1002/jeq2.20350.Manure and septic systems: The microbial health risk from contaminated household wells in Kewaunee County, Wisconsin

- (Abstract Only)Burch, T.R., Stokdyk, J.P., Spencer, S.K., Kieke, B.A., Firnstahl, A.D., Muldoon, M.A., Borchardt, M.A. 2022. Manure and septic systems: The microbial health risk from contaminated household wells in Kewaunee County, Wisconsin. Meeting Abstract. March 10-11, 2022.Manure and septic systems: The microbial health risk from contaminated household wells in Kewaunee County, Wisconsin

- (Abstract Only)Burch, T.R., Borchardt, M.A. 2021. Manure and septic systems: The microbial health risk from contaminated household wells in Kewaunee County, Wisconsin. Meeting Abstract. Nov 2, 2021.The environmental microbiology minimum information (EMMI) Guidelines: qPCR and dPCR quality and reporting for environmental microbiology
                                                        

- (Peer Reviewed Journal)Borchardt, M.A., Boehm, A.B., Salit, M., Spencer, S.K., Wigginton, K.R., Noble, R.T. 2021. The environmental microbiology minimum information (EMMI) Guidelines: qPCR and dPCR quality and reporting for environmental microbiology. Environmental Science and Technology. https://doi.org/10.1021/acs.est.1c01767.Microbial water quality improvement associated with transitioning from intermittent to continuous water supply in Nagpur, India
                                                        

- (Peer Reviewed Journal)Bivins, A., Lowry, S., Wankhede, S., Hajare, R., Murphy, H., Borchardt, M.A., Labhasetwar, P., Brown, J. 2021. Microbial water quality improvement associated with transitioning from intermittent to continuous water supply in Nagpur, India. Water Research. https://doi.org/10.1016/j.watres.2021.117301.Sources and risk factors for nitrate and microbial contamination of private household wells in the fractured dolomite aquifer of northeastern Wisconsin
                                                        

- (Peer Reviewed Journal)Borchardt, M.A., Stokdyk, J.P., Kieke, B.A., Muldoon, M.A., Spencer, S.K., Firnstahl, A.D., Bonness, D.A., Hunt, R.J., Burch, T.R. 2021. Sources and risk factors for nitrate and microbial contamination of private household wells in the fractured dolomite aquifer of northeastern Wisconsin. Environmental Health Perspectives. https://doi.org/10.1289/EHP7813.Quantitative microbial risk assessment for contaminated private wells in the fractured dolomite aquifer of Kewaunee County, Wisconsin
                                                        

- (Peer Reviewed Journal)Burch, T.R., Stokdyk, J.P., Spencer, S.K., Kieke, B.A., Firnstahl, A.D., Muldoon, M.A., Borchardt, M.A. 2021. Quantitative microbial risk assessment for contaminated private wells in the fractured dolomite aquifer of Kewaunee County, Wisconsin. Environmental Health Perspectives. https://doi.org/10.1289/EHP7815.Microbial pathogens and contaminants of emerging concern in groundwater at an urban subsurface stormwater infiltration site
                                                        

- (Peer Reviewed Journal)De Dambert, J.R., Walsh, J.F., Scher, D.P., Firnstahl, A.D., Borchardt, M.A. 2021. Microbial pathogens and contaminants of emerging concern in groundwater at an urban subsurface stormwater infiltration site. Science of the Total Environment. https://doi.org/10.1016/j.scitotenv.2021.145738.Waterborne pathogen monitoring in urban India reveals potential infection risks in groundwater supplies
                                                        

- (Peer Reviewed Journal)Bivens, A., Lowry, S., Murphy, H.M., Borchardt, M.A., Coyte, R., Labhasetwar, P., Brown, J. 2020. Waterborne pathogen monitoring in urban India reveals potential infection risks in groundwater supplies. npj Clean Water. 3, 35. https://doi.org/10.1038/s41545-020-00081-3.Quantitative microbial risk assessment for waterborne pathogens in non-disinfecting community and non-community wells in Minnesota

- (Abstract Only)Burch, T.R., Rice, N., Anderson, A.C., Stokdyk, J.P., Borchardt, M.A. 2020. Quantitative microbial risk assessment for waterborne pathogens in non-disinfecting community and non-community wells in Minnesota. Meeting Abstract. Oct 13-14, 2020.Viral, bacterial, and protozoan pathogens and fecal markers in wells supplying groundwater to public water systems in Minnesota, USA
                                                        

- (Peer Reviewed Journal)Stokdyk, J.P., Firnstahl, A.D., Walsh, J.F., Spencer, S.K., De Lambert, J.R., Anderson, A.C., Rezania, L.W., Kieke, B.A., Borchardt, M.A. 2020. Viral, bacterial, and protozoan pathogens and fecal markers in wells supplying groundwater to public water systems in Minnesota, USA. Water Research. 178(1):115814. https://doi.org/10.1016/j.watres.2020.115814.Effects of rainfall and septic systems on the occurrence of human sewage markers and traditional indicator organisms in private wells in southeastern Pennsylvania
                                                        

- (Peer Reviewed Journal)Murphy, H., Mcginnis, S., Blunt, R., Wu, J., Cagle, A., Denno, D., Spencer, S.K., Stokdyk, J., Firnstahl, A., Borchardt, M.A. 2020. Effects of rainfall and septic systems on the occurrence of human sewage markers and traditional indicator organisms in private wells in southeastern Pennsylvania. Environmental Science and Technology. 54(6):3159-3168. https://doi.org/10.1021/acs.est.9b05405.Pathogen prevalence in fractured versus granular aquifers and the role of forward flow stagnation zones on pore-scale delivery to surfaces
                                                        

- (Peer Reviewed Journal)Rasmuson, A., Erickson, B., Borchardt, M.A., Muldoon, M., Johnson, W.P. 2019. Pathogen prevalence in fractured versus granular aquifers and the role of forward flow stagnation zones on pore-scale delivery to surfaces. Environmental Science and Technology. 54:137-145. https://doi.org/10.1021/acs.est.9b03274.Laboratory for infectious disease and the environment (LIDE)

- (Government Publication)Stokdyk, J.P., Bruce, J.L., Burch, T.R., Spencer, S.K., Firnstahl, A.D., Borchardt, M.A. 2019. Laboratory for infectious disease and the environment (LIDE). Government Publication/Report. 2018-3079.SWIGG: The southwest Wisconsin groundwater and geology study

- (Popular Publication)Bradbury, K., Borchardt, M.A., Stokdyk, J. 2019. SWIGG: The southwest Wisconsin groundwater and geology study. Popular Publication. p. 16-19.Assessing groundwater quality in Kewaunee County, Wisconsin

- (Government Publication)Borchardt, M.A., Muldoon, M.A., Hunt, R.J., Bonness, D.E., Firnstahl, A.D., Kieke, B.A., Owens, D.W., Spencer, S.K., Stokdyk, J.P. 2019. Assessing groundwater quality in Kewaunee County, Wisconsin. Government Publication/Report. 2019-05.Automated time-series measurement of microbial concentrations in groundwater-derived water supplies
                                                        

- (Peer Reviewed Journal)Owens, D.W., Hunt, R.J., Firnstahl, A.D., Muldoon, M.A., Borchardt, M.A. 2019. Automated time-series measurement of microbial concentrations in groundwater-derived water supplies. Groundwater. 57(2):329-336. https://doi.org/10.1111/gwat.12822.Community Intervention with UV disinfection to estimate acute gastrointestinal illness from drinking untreated groundwater

- (Abstract Only)Effect of mixing duration on biogas production and methanogen distribution in an anaerobic digester

- (Peer Reviewed Journal)Wang, H., Larson, R., Spencer, S.K., Borchardt, M.A. 2019. Effect of mixing duration on biogas production and methanogen distribution in an anaerobic digester. Environmental Technology. DOI: 10.1080/09593330.2019.1621951.Efficacy of recycled sand or organic solids as bedding sources for lactating cows housed in freestalls
                                                        

- (Peer Reviewed Journal)Esser, N.M., Su, H., Coblentz, W.K., Akins, M.S., Kieke, B.A., Martin, N.P., Borchardt, M.A., Jokela, W.E. 2019. Efficacy of recycled sand or organic solids as bedding sources for lactating cows housed in freestalls. Journal of Dairy Science. 102(7):6682-6698. https://doi.org/10.3168/jds.2018-15851.Confirming the need for virus disinfection in municipal subsurface drinking water supplies
                                                        

- (Peer Reviewed Journal)Emelko, M.B., Schmidt, P.J., Borchardt, M.A. 2019. Confirming the need for virus disinfection in municipal subsurface drinking water supplies. Water Research. 157(15):356-364. https://doi.org/10.1016/j.watres.2019.03.057.Cryptosporidium incidence and surface water influence of groundwater supplying public water systems in Minnesota, USA
                                                        

- (Peer Reviewed Journal)Stokdyk, J.P., Spencer, S.K., Anderson, A.C., Walsh, J.F., Firnstahl, A.D., Rezania, L.W., Borchardt, M.A. 2019. Cryptosporidium incidence and surface water influence of groundwater supplying public water systems in Minnesota, USA. Environmental Science and Technology. 53(7):3391-3398. https://doi.org/10.1021/acs.est.8b05446.The health burden of private wells contaminated by gastrointestinal pathogens in the fractured dolomite aquifer of Kewaunee County, Wisconsin

- (Abstract Only)Burch, T.R., Stokdyk, J.P., Spencer, S.K., Kieke, B.A., Firnstahl, A.D., Borchardt, M.A. 2019. The health burden of private wells contaminated by gastrointestinal pathogens in the fractured dolomite aquifer of Kewaunee County, Wisconsin. Meeting Abstract. Feb. 28 - Mar. 1, 2019.Human-associated indicator bacteria and human-specific viruses in surface water: a spatial assessment with implications on fate and transport
                                                        

- (Peer Reviewed Journal)Lenaker, P.L., Corsi, S.R., Olds, H.T., McLellan, S.L., Borchardt, M.A., Dila, D.K., Spencer, S.K., Baldwin, A.K. 2018. Human-associated indicator bacteria and human-specific viruses in surface water: a spatial assessment with implications on fate and transport. Environmental Science and Technology. 52(21):12162-12171. https://doi.org/10.1021/acs.est.8b03481.Sewage loading and microbial risk in urban waters of the Great Lakes
                                                        

- (Peer Reviewed Journal)McLellan, S.L., Sauer, E.P., Bootsma, M.J., Corsi, S.R., Boehm, A.B., Spencer, S.K., Borchardt, M.A. 2019. Sewage loading and microbial risk in urban waters of the Great Lakes. Elementa: Science of the Anthropocene. 6:46. https://doi.org/10.1525/elementa.301.Using integrated environmental modeling to assess sources of microbial contamination in mixed-use watersheds

- (Peer Reviewed Journal)Kim, K., Whelan, G., Molina, M., Parmer, R., Wolfe, K., Galvin, M., Duda, P., Zepp, R., Kinzelman, J.L., Kleinheinz, T., Borchardt, M.A. 2018. Using integrated environmental modeling to assess sources of microbial contamination in mixed-use watersheds. Journal of Environmental Quality. 34:1103-1114.Human bacteroides and total coliforms as indicators of recent combined sewer overflows and rain events in urban creeks
                                                        

- (Peer Reviewed Journal)McGinnis, S., Spencer, S.K., Firnstahl, A., Stokdyk, J., Borchardt, M.A., McCarthy, D.T., Murphy, H.M. 2017. Human bacteroides and total coliforms as indicators of recent combined sewer overflows and rain events in urban creeks. Science of the Total Environment. 630:697-976.Opportunities for optimization: fate of manure-borne pathogens during anaerobic digestion and solids separation
                                                        

- (Peer Reviewed Journal)Burch, T.R., Spencer, S.K., Borchardt, S.S., Larson, R.A., Borchardt, M.A. 2018. Opportunities for optimization: fate of manure-borne pathogens during anaerobic digestion and solids separation. Journal of Environmental Quality. 47:336-344.Voluntary intake and digestibility by sheep of alfalfa ensiled at different moisture concentrations following fertilization with dairy slurry

- (Peer Reviewed Journal)Clark, J.K., Coffey, K.P., Coblentz, W.K., Shanks, B.C., Caldwell, J.D., Muck, R.E., Philipp, D., Borchardt, M.A., Rhein, R.T., Jokela, W.E., Backes, E.A., Bertram, M.G., Smith, W.B. 2018. Voluntary intake and digestibility by sheep of alfalfa ensiled at different moisture concentrations following fertilization with dairy slurry. Journal of Animal Science. 96:964-974.Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow

- (Peer Reviewed Journal)Whelen, G., Kim, K., Parmar, R., Laniak, G., Wolfe, K., Galvin, M., Molina, M., Pachepsky, Y.A., Duda, P., Zepp, R., Prieto, L., Kinzelman, J., Kleinheinz, G., Borchardt, M.A. 2018. Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow. Journal of Environmental Modeling and Software. 99:126-146.Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow

- (Peer Reviewed Journal)Whelan, G., Kim, K., Parmar, R., Laniak, G.F., Wolfe, K., Galvin, M., Molina, M., Pachepsky, Y.A., Duda, P., Zepp, R., Prieto, L., Kinzelman, J.L., Kleinheinz, G.T., Borchardt, M.A. 2017. Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow. Environmental Modelling & Software. 99:126-146.Avian influenza virus RNA in groundwater wells supplying poultry farms affected by the 2015 influenza outbreak
                                                        

- (Peer Reviewed Journal)Borchardt, M.A., Spencer, S.K., Hubbard, L.E., Firnstahl, A.D., Stokdyk, J.P., Kolpin, D.W. 2017. Avian influenza virus RNA in groundwater wells supplying poultry farms affected by the 2015 influenza outbreak. Environmental Science and Technology Letters. 4:268-272.Human virus and microbial indicator occurrence in public-supply groundwater systems: meta-analysis of 12 international studies
                                                        

- (Peer Reviewed Journal)Fout, S.G., Borchardt, M.A., Kieke, B., Mohammad, K.R. 2017. Human virus and microbial indicator occurrence in public-supply groundwater systems: meta-analysis of 12 international studies. Hydrogeology Journal. 25:903-919.Hydrogeology and human health

- (Peer Reviewed Journal)Hynds, P., Borchardt, M.A., Ibaraki, M. 2017. Hydrogeology and human health. Hydrogeology Journal. 25:897-902.Using enteric pathogens to assess sources of fecal contamination in the silurian dolomite aquifer: preliminary results

- (Proceedings)Muldoon, M.A., Borchardt, M.A., Spencer, S.K., Hunt, R.J., Lenaker, P. 2017. Using enteric pathogens to assess sources of fecal contamination in the silurian dolomite aquifer: preliminary results. Meeting Proceedings. p. 347.Virus occurrence in private and public wells in a fractured dolostone aquifer in Canada
                                                        

- (Peer Reviewed Journal)Allen, A., Borchardt, M.A., Kieke, B., Dunfield, K., Parker, B. 2017. Virus occurrence in private and public wells in a fractured dolostone aquifer in Canada. Hydrogeology Journal. 25:1117-1136.Hydrologic, land cover and seasonal patterns of waterborne pathogens in great lakes tributaries
                                                        

- (Peer Reviewed Journal)Lenaker, P.L., Corsi, S.R., Borchardt, M.A., Spencer, S.K., Baldwin, A.K., Lutz, M.A. 2017. Hydrologic, land cover and seasonal patterns of waterborne pathogens in great lakes tributaries. Water Research. 113:11-21.Groundwater and enteric disease: A review of the epidemiological evidence

- (Review Article)Murphy, H.M., Prioleau, M.D., Borchardt, M.A., Hynds, P.D. 2017. Groundwater and enteric disease: A review of the epidemiological evidence. Hydrogeology Journal. 25:981-1001.Human health and groundwater

- (Popular Publication)Candela, L., Parker, B., Lapworth, D., Smedley, P., Danert, K., Borchardt, M.A. 2016. Human health and groundwater. International Association of Hydrological Science. www.iah.org.Effects of climate and sewer condition on virus transport to groundwater
                                                        

- (Peer Reviewed Journal)Gotkowitz, M.B., Bradbury, K.R., Borchardt, M.A., Zhu, J., Spencer, S.K. 2016. Effects of climate and sewer condition on virus transport to groundwater. Environmental Science and Technology. 50:8497-8504. 2016.Detection of hepatitis E virus and other livestock-related pathogens in Iowa streams
                                                        

- (Peer Reviewed Journal)Givens, C.E., Kolpin, D.W., Borchardt, M.A., Duris, J.W., Moorman, T.B., Spencer, S.K. 2016. Detection of hepatitis E virus and other livestock-related pathogens in Iowa streams. Science of the Total Environment. 566-567:1042-1051. doi: 10.1016/j.scitotenv.2016.05-123.Assessment of different bedding systems for lactating cows in freestall housing

- (Abstract Only)Su, H., Esser, N.M., Coblentz, W.K., Borchardt, M.A., Jokela, W.E., Akins, M.S. 2016. Assessment of different bedding systems for lactating cows in freestall housing. Journal of Dairy Science. ADSA/ASAS Joint Annual Meeting, July 19-23, 2016. Salt Lake City, UT.Quantitative microbial risk assessment for spray irrigation of dairy manure based on an empirical fate and transport model
                                                        

- (Peer Reviewed Journal)Burch, T.R., Spencer, S.K., Stokdyk, J.P., Kieke, B.A., Larson, R.A., Firnstahl, A.D., Rule, A.M., Borchardt, M.A. 2017. Quantitative microbial risk assessment for spray irrigation of dairy manure based on an empirical fate and transport model. Environmental Health Perspectives. https://doi.org/10.1289/EHP283.Determining the 95% limit of detection for waterborne pathogen analyses from primary concentration to qPCR
                                                        

- (Peer Reviewed Journal)Stokdyk, J.P., Firnstahl, A.D., Spencer, S.K., Burch, T.R., Borchardt, M.A. 2016. Determining the 95% limit of detection for waterborne pathogen analyses from primary concentration to qPCR. Applied and Environmental Microbiology. 96:105-113.Human and bovine viruses and bacteria at three great lakes beaches: Environmental variable associations and health risk
                                                        

- (Peer Reviewed Journal)Corsi, S.R., Borchardt, M.A., Carvin, R.B., Burch, T., Spencer, S.K., Lutz, M.A., McDermott, C.M., Busse, K., Kleinheinz, G.T., Zhu, J. 2015. Human and bovine viruses and bacteria at three great lakes beaches: Environmental variable associations and health risk. Environmental Science and Technology. 50:987-995.Airborne pathogens from dairy manure aerial irrigation and the human health risk

- (Government Publication)Borchardt, M.A., Burch, T.R. 2016. Airborne pathogens from dairy manure aerial irrigation and the human health risk. Extension Publications. ERC 001-16.Interactions of water quality and integrated groundwater management:  exampled from the United States

- (Book / Chapter)Warner, K., Barataud, F., Hunt, R., Borchardt, M.A. 2016. Interactions of water quality and integrated groundwater management:  exampled from the United States. Book Chapter. 953 p. ISBN 978-3-319-23575-2.Ammonia emission during irrigation of dairy manure

- (Abstract Only)Jokela, W.E., Sherman, J.F., Borchardt, M.A., Cavadini, J.S. 2015. Ammonia emission during irrigation of dairy manure. Meeting Abstract. ASA-CSSA-SSSA, Madison, WI.Effects of dairy slurry application and bale moisture concentration on voluntary intake and digestibility of alfalfa silage by sheep

- (Abstract Only)Clark, J.K., Shanks, B.C., Caldwell, J.D., Coffey, K.P., Coblentz, W.K., Muck, R.E., Phillip, D., Borchardt, M.A., Rhein, R.T., Jokela, W.E. 2015. Effects of dairy slurry application and bale moisture concentration on voluntary intake and digestibility of alfalfa silage by sheep. Journal of Dairy Science. 98:615.2013 Survey of Iowa groundwater and evaluation of public well vulnerability classifications for contaminants of emerging concern

- (Government Publication)Hruby, C., Libra, R., Fields, C., Kolpin, D., Hubbard, L., Borchardt, M.A., Spencer, S.K., Wichman, M., Hall, N., Scheuller, M., Furlong, E., Weyer, P. 2015. 2013 Survey of Iowa groundwater and evaluation of public well vulnerability classifications for contaminants of emerging concern. Iowa Department of Natural Resources. May 2015.Application of dairy slurry on alfalfa fields, and subsequent effects on nutritive value and silage fermentation characteristics of the harvested forage

- (Popular Publication)Coblentz, W.K., Muck, R.E., Borchardt, M.A., Spencer, S.K., Jokela, W.E., Bertram, M.G., Coffey, K.P. 2014. Application of dairy slurry on alfalfa fields, and subsequent effects on nutritive value and silage fermentation characteristics of the harvested forage. Popular Publication. Midwest Forage Assn. Project Reports 2013.Effects of dairy slurry on silage fermentation characteristics and nutritive value of alfalfa
                                                        

- (Peer Reviewed Journal)Coblentz, W.K., Muck, R.E., Borchardt, M.A., Spencer, S.K., Jokela, W.E., Bertram, M.G., Coffey, K.P. 2014. Effects of dairy slurry on silage fermentation characteristics and nutritive value of alfalfa. Journal of Dairy Science. 97:7197-7211.Simultaneous concentration of bovine viruses and agricultural zoonotic bacteria from water using sodocalcic glass wool filters
                                                        

- (Peer Reviewed Journal)Abd-Elmaksoud, S., Spencer, S.K., Gerba, C.P., Tamimi, A.H., Jokela, W.E., Borchardt, M.A. 2014. Simultaneous concentration of bovine viruses and agricultural zoonotic bacteria from water using sodocalcic glass wool filters. Food and Environmental Virology. 6:253-259.Pathogen transport modeling during spray irrigation of liquid manure in Wisconsin

- (Proceedings)Liang, Y., Larson, R.A., Zopp, Z.P., Borchardt, M.A., Choi, C.Y. 2014. Pathogen transport modeling during spray irrigation of liquid manure in Wisconsin. Meeting Proceedings. July 13-16, 2014.Methods for virus recovery in water

- (Book / Chapter)Gibson, K.E., Borchardt, M.A. 2016. Methods for virus recovery in water. Book Chapter. 978-3-319-30721-3.Human and bovine viruses in the Milwaukee river watershed: hydrologically relevant representation and relations with environmental variables

- (Peer Reviewed Journal)Corsi, S.R., Borchardt, M.A., Spencer, S.K., Hughes, P.E., Baldwin, A.K. 2014. Human and bovine viruses in the Milwaukee river watershed: hydrologically relevant representation and relations with environmental variables. Science of the Total Environment. 490:849-860.Effects of dairy slurry on the nutritive value and fermentation characteristics of alfalfa silages

- (Abstract Only)Coblentz, W.K., Muck, R.E., Borchardt, M.A., Jokela, W.E., Bertram, M.G. 2014. Effects of dairy slurry on the nutritive value and fermentation characteristics of alfalfa silages. Journal of Dairy Science. Joint Meeting of ADSA and ASAS, July 20-24, 2014. Kansas City, MO..Application of dairy slurry on alfalfa fields, and subsequent effects on nutritive value and silage fermentation characteristics of the harvested forage

- (Popular Publication)Coblentz, W.K., Muck, R.E., Borchardt, M.A., Jokela, W.E., Bertram, M. 2014. Application of dairy slurry on alfalfa fields, and subsequent effects on nutritive value and silage fermentation characteristics of the harvested forage. Forage Focus. p. 22.Improved HF183 quantitative real-time PCR assay for characterization of human fecal pollution in ambient surface water samples
                                                        

- (Peer Reviewed Journal)Green, H.C., Haugland, R.A., Varma, M., Millen, H.T., Borchardt, M.A., Field, K.G., Walters, W.A., Knight, R., Kelty, C.A., Shanks, O.C. 2014. Improved HF183 quantitative real-time PCR assay for characterization of human fecal pollution in ambient surface water samples. Applied and Environmental Microbiology. 80:3086-3094.Pathogen transport modeling during spray irrigation of liquid manure in wisconsin

- (Abstract Only)Liang, Y., Larson, R.A., Zopp, Z.P., Borchardt, M.A., Choi, C.Y. 2014. Pathogen transport modeling during spray irrigation of liquid manure in wisconsin. American Society of Agricultural and Biological Engineers. jULY 13-16, 2014.Surface runoff from manured cropping systems assessed by the paired-watershed method, part 2: pathogen transport

- (Abstract Only)Borchardt, M.A., Spencer, S.K., Jokela, W.E. 2014. Surface runoff from manured cropping systems assessed by the paired-watershed method, part 2: pathogen transport. American Water Resources Association Conference Proceedings. March 13-14, 2014.Characterization of preferential flow pathways in a siliciclastic aquifer system using human enteric viruses and groundwater geochemistry

- (Abstract Only)Gellasch, C.A., Borchardt, M.A., Bradbury, K.R., Spencer, S.K., Bahr, J.M. 2014. Characterization of preferential flow pathways in a siliciclastic aquifer system using human enteric viruses and groundwater geochemistry. Geological Society of America Meeting. March 23-25, 2014.Effects of precipitation events on virus presence in groundwater

- (Abstract Only)Gotkowitz, M.B., Bradbury, K.R., Borchardt, M.A., Spencer, S.K., Krause, J.J. 2014. Effects of precipitation events on virus presence in groundwater. American Water Resources Association Conference Proceedings. March 13-14, 2014.Surface runoff from manured cropping systems assessed by the paired-watershed method, part 1: P, N, and sediment transport

- (Abstract Only)Jokela, W.E., Casler, M.D., Bertram, M.G., Borchardt, M.A. 2014. Surface runoff from manured cropping systems assessed by the paired-watershed method, part 1: P, N, and sediment transport. American Water Resources Association Conference Proceedings. March 13-14, 2014.From the ground up: groundwater, surface water runoff, and air as pathogen routes for food contamination

- (Proceedings)Borchardt, M.A. 2014. From the ground up: groundwater, surface water runoff, and air as pathogen routes for food contamination. Symposium Proceedings. 53:125.Viruses as groundwater tracers:  using ecohydrology to characterize short travel times in aquifers
                                                        

- (Peer Reviewed Journal)Hunt, R.J., Borchardt, M.A., Bradbury, K.R. 2014. Viruses as groundwater tracers:  using ecohydrology to characterize short travel times in aquifers. Ground Water. 52:187-193.Accumulation and inactivation of avian influenza virus by the filter feeding invertebrate daphnia magna
                                                        

- (Peer Reviewed Journal)Meixell, B.W., Borchardt, M.A., Spencer, S.K. 2013. Accumulation and inactivation of avian influenza virus by the filter feeding invertebrate daphnia magna. Applied and Environmental Microbiology. 79:7249-7255.Drinking water systems, hydrology, and childhood gastrointestinal illness in central and northern Wisconsin
                                                        

- (Peer Reviewed Journal)Uejio, C.K., Yale, S.H., Malecki, K., Borchardt, M.A., Anderson, H.A., Patz, J.A. 2014. Drinking water systems, hydrology, and childhood gastrointestinal illness in central and northern Wisconsin. American Journal of Public Health. 104:639-646.Ranking filter methods for concentrating pathogens in lake water
                                                        

- (Peer Reviewed Journal)Borchardt, M.A., Kieke, B.A., Spencer, S.K. 2013. Ranking filter methods for concentrating pathogens in lake water. Applied and Environmental Microbiology. 79:5418-5419.Source and transport of human enteric viruses in deep municipal water supply wells

- (Peer Reviewed Journal)Bradbury, K.R., Borchardt, M.A., Gotkowitz, M., Spencer, S.K., Zhu, J., Hunt, R.J. 2013. Source and transport of human enteric viruses in deep municipal water supply wells. Journal of Environmental Science and Technology. 47:4096-4103.Inactivation of dairy manure-borne pathogens by anaerobic digestion

- (Abstract Only)Borchardt, M.A., Spencer, S.K., Larson, R.A., Alkan-Ozkaynak, A. 2013. Inactivation of dairy manure-borne pathogens by anaerobic digestion. Meeting Abstract. May 18-21, 2013.Improved HF183 reverse primer and probe for greater analytical sensitivity of human bacteroides in the environment

- (Abstract Only)Millen, H.T., Spencer, S.K., Shanks, O.C., Green, H.C., Haugland, R.A., Gonnering, J.C., Borchardt, M.A. 2013. Improved HF183 reverse primer and probe for greater analytical sensitivity of human bacteroides in the environment. Meeting Abstract. May 18-21, 2013.Contaminant transport pathways between urban sewer networks and water supply wells

- (Abstract Only)Gotkowitz, M.B., Bradbury, K.R., Borchardt, M.A. 2013. Contaminant transport pathways between urban sewer networks and water supply wells. Meeting Abstract. March 7-8, 2013.Basic QA/QC information required for reporting real-time quantitative PCR data for drinking water quality

- (Review Article)Gibson, K.E., Borchardt, M.A. 2013. Basic QA/QC information required for reporting real-time quantitative PCR data for drinking water quality. Journal of American Water Works Association. 105 (1): 45-47.Risk of viral acute gastrointestinal illness from non-disinfected drinking water distribution systems

- (Peer Reviewed Journal)Lambertini, E., Borchardt, M.A., Kieke, B.A., Spencer, S.K., Loge, F.J. 2012. Risk of viral acute gastrointestinal illness from non-disinfected drinking water distribution systems. Environmental Science and Technology. 46:9299-9307.Viruses in non-disinfected drinking water from municipal wells are related to community rates of acute gastrointestinal illness

- (Peer Reviewed Journal)Borchardt, M.A., Spencer, S.K., Kieke, B.A., Lambertini, E., Loge, F.J. 2012. Viruses in non-disinfected drinking water from municipal wells are related to community rates of acute gastrointestinal illness. Proceedings of the National Academy of Sciences. 120:1272-1279.Comparative effectiveness of membrane bioreactors, conventional secondary treatment, and disinfection to remove microorganisms from municipal wastewaters

- (Peer Reviewed Journal)Francy, D.S., Stelzer, E.A., Bushon, R.N., Brady, A.M., Williston, A.G., Riddell, K.R., Borchardt, M.A., Spencer, S.K., Gellner, T.M. 2012. Comparative effectiveness of membrane bioreactors, conventional secondary treatment, and disinfection to remove microorganisms from municipal wastewaters. Water Research. 46:4164-4178.Measuring and mitigating inhibition during real-time, quantitative PCR analysis of viral nucleic acid extracts from large-volume environmental water samples

- (Peer Reviewed Journal)Gibson, K.E., Schwab, K.J., Spencer, S.K., Borchardt, M.A. 2012. Measuring and mitigating inhibition during real-time, quantitative PCR analysis of viral nucleic acid extracts from large-volume environmental water samples. Water Research. 46:4281-4291.Pathogen transport in surface runoff from manured agricultural fields

- (Abstract Only)Borchardt, M.A., Jokela, W.E., Spencer, S.K. 2012. Pathogen transport in surface runoff from manured agricultural fields. Meeting Abstract. September 23-26, 2012.Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens

- (Peer Reviewed Journal)Millen, H., Gonnering, J., Berg, R., Spencer, S.K., Jokela, W.E., Pearce, J.M., Borchardt, J.S., Borchardt, M.A. 2012. Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens. Journal of Visualized Experiments. DOI: 10.3791/3930.When it hits the fan: Pathogens from human and bovine sources in the environment

- (Proceedings)Borchardt, M.A. 2012. When it hits the fan: Pathogens from human and bovine sources in the environment. Symposium Proceedings. Volume 51:2-3.Viruses in non-disinfected groundwater supplying municipal drinking water and the human health risk

- (Abstract Only)Human and bovine viruses in urban and rural streams: Hydrologic and season patterns of wastewater influence

- (Abstract Only)Evaluation of mechanisms that might control transport of wastewater contaminants in bedrock multi-aquifer systems

- (Abstract Only)Hydrogeological and statistical evidence for wide-spread enteric virus contamination of deep municipal wells

- (Abstract Only)Viruses in non-disinfected groundwater used for municipal drinking water and the incidence of acute gastrointestinal illness

- (Abstract Only)Quantifying viruses and bacteria in wastewater - results, quality control, and interpretation methods

- (Government Publication)Francy, D.S., Stelzer, E.A., Bushon, R.N., Brady, A.M., Mailot, B.E., Spencer, S.K., Borchardt, M.A., Elber, A.G., Riddell, K.R., Gellner, T.M. 2011. Quantifying viruses and bacteria in wastewater - results, quality control, and interpretation methods. United States Geological Survey Technical Report. 5150, 44p.Lachnospiraceae- and Bacteroidales alternative fecal indicators reveal chronic human sewage contamination in an urban harbor

- (Peer Reviewed Journal)Newton, R.J., Vandewalle, J., Borchardt, M.A., Gorelick, M.H., Mclellan, S.L. 2011. Lachnospiraceae- and Bacteroidales alternative fecal indicators reveal chronic human sewage contamination in an urban harbor. Applied and Environmental Microbiology. 77:6972-6981.Virus contamination from operation and maintenance practices in small drinking water distribution systems

- (Peer Reviewed Journal)Lambertini, E., Spencer, S.K., Kieke, B.A., Loge, F.J., Borchardt, M.A. 2011. Virus contamination from operation and maintenance practices in small drinking water distribution systems. Journal of Water and Health. 9:799-812.Method 1615 measurment of Enterovirus and Norovirus occurrence in water by culture and qRT-PCR

- (Government Publication)Fout, G.S., Brinkman, N.E., Cashdollar, J.L., Griffin, S.M., Mcminn, B.R., Rhodes, E.R., Varughese, E.A., Grimm, A.G., Spencer, S.K., Borchardt, M.A. 2011. Method 1615 measurment of Enterovirus and Norovirus occurrence in water by culture and qRT-PCR. Government Publication/Report. EPA/600/R-10/181.Pathogen losses in surface runoff from dairy manure applied to corn fields

- (Abstract Only)Borchardt, M.A., Jokela, W.E., Spencer, S.K. 2011. Pathogen losses in surface runoff from dairy manure applied to corn fields. American Society for Microbiology. Abstract #1436.Human viruses as tracers of wastewater pathways into deep municipal wells

- (Government Publication)Bradbury, K.R., Borchardt, M.A., Gotkowski, M., Spencer, S.K. 2010. Human viruses as tracers of wastewater pathways into deep municipal wells. Government Publication/Report. Final Report to the Wisconsin Department of Natural Resources, Open-File Report 2010-04A, 47p.Identifying pathways for sanitary sewer pathogens to reach deep water supply wells in Madison, Wisconsin

- (Abstract Only)Gellasch, C.A., Bradbury, K.R., Bahr, J.M., Borchardt, M.A., Alexander, E. 2010. Identifying pathways for sanitary sewer pathogens to reach deep water supply wells in Madison, Wisconsin. Meeting Abstract. Vol. 42, No. 5, page 378.Presence of human enteric viruses in deep urban groundwater

- (Abstract Only)Bradbury, K., Borchardt, M.A., Gotkowitz, M.B., Hunt, R., Spencer, S.K. 2010. Presence of human enteric viruses in deep urban groundwater. Meeting Abstract. Vol. 42, No. 5, page 378.Groundwater sampling methods using glass wool filtration to trace human enteric viruses in Madison, Wisconsin

- (Abstract Only)Gellasch, C.A., Bahr, J.M., Borchardt, M.A., Bradbury, K.E., Chase, P.M., Spencer, S.K. 2010. Groundwater sampling methods using glass wool filtration to trace human enteric viruses in Madison, Wisconsin. Geological Society of America Meeting. Vol. 42, No. 5, p. 603.Assessment of Sewer Source Contamination of Drinking Water Wells Using Tracers and Human Enteric Viruses

- (Peer Reviewed Journal)Hunt, R.J., Borchardt, M.A., Richards, K.D., Spencer, S.K. 2010. Assessment of Sewer Source Contamination of Drinking Water Wells Using Tracers and Human Enteric Viruses. Environmental Science and Technology. Environ. Sci. Technol.44:7956-7963..


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