College of Agriculture & Natural Resources│College of Engineering Department of Biosystems & Agricultural Engineering

Emily Julien’s research focus has been pathogen risks arising from in-building plumbing. This includes quantitative microbial risk assessment (QMRA) for pathogens such as Legionella spp., identifying variables associated with elevated pathogen risks, and modeling in-building plumbing to assess hydraulic retention time. Emily also has diverse work experiences, ranging from private consulting in oil and gas remediation to work in state government preparing air permits. Emily previously managed a wastewater sampling effort on MSU’s campus to monitor the prevalence of SARS-CoV-2, the causative agent of COVID19. Emily is currently working to develop a risk-informed decision framework to prioritize legacy and emerging contaminants for a large drinking water supplier.

Publications

Julien, R., Palmegiani, M., Lee, J., Whelton, A. J., & Mitchell, J. (2023). Modeling water age in a full-scale residential plumbing system. AWWA Water Science, e1347. https://doi.org/10.1002/aws2.1347

Patterson JR, Cole-Strauss A, Kuhn N, Mercier C, Kochmanski J, Gerlach JA, LeVeque RM, Neugebauer KA, Conner KN, Gomez J, Hennes MG, Thompson KE, Rytlewski DL, Bigwood CC, Scharmen A, Simjanovski G, Riley C, Donaldson J, Yasin D, Kouja N, Contejean Z, Burnett M, Aminova S, Yawson NA, Singh SB, Alian OM, Broeker CD, Zaluzec EK, ONeill M, Puschner B, Sousa A, Bix L, Jespersen B, Holzman C, Mitchell J, Julien R, Askin Y, Barnes D, Durshanpalli P, Krum D, Weber R, Patterson M, Anderson B, Hunt R, O'Brien B, Umstead A, Beck JS, Vega IE, Sortwell CE, Lipton JW. Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling. J Vis Exp. 2022 Jun 23;(184). doi: 10.3791/64008. PMID: 35815999.

Kropp, I., Pouyan Nejadhashemi, A., Julien, R., Mitchell, J., & Whelton, A. J. (2022). A machine learning framework for predicting downstream water end-use events with upstream sensors. Water Supply, 22(7), 6427–6442. https://doi.org/10.2166/ws.2022.226

Julien, R., Saravi, B., Nejadhashemi, A., Whelton, A. J., Aw, T.G., & Mitchell, J. (2022). “Identifying variables that most strongly influence Legionella concentrations in building plumbing.” AWWA Water Science, e1267. https://doi.org/10.1002/aws2.1267.

C.J. Ley, C.R. Proctor, G. Singh, K. Ra, Y. Noh, T. Odimayomi, M. Salehi, R. Julien, J. Mitchell, A.P. Nejadhashemi, A.J. Whelton, T.G. Aw, Drinking water microbiology in a water-efficient building: stagnation, seasonality, and physicochemical effects on opportunistic pathogen and total bacteria proliferation, Environ. Sci. Water Res. Technol. 6 (2020) 2902–2913. https://doi.org/10.1039/D0EW00334D.

C.J. Ley, C. Proctor, K. Jordan, K. Ra, Y. Noh, T. Odimayomi, R. Julien, I. Kropp, J. Mitchell, A.P. Nejadhashemi, A. J. Whelton, T. Aw (2020). “Impacts of municipal water-rainwater source transitions on building plumbing and influence on microbial and chemical water quality dynamics at the tap.” . Environ Sci Technol. 2020 Sep 15;54(18):11453-11463. https://doi.org/10.1021/acs.est.0c03641

Salehi, M., Odimayomi, T., Ra, K., Ley, C., Julien, R., Nejadhashemi, A.P., Hernandez-Suarez, J.S., Mitchell, J., Shah, A.D. and Whelton, (2020). “An investigation of spatial and temporal drinking water quality variation in green residential plumbing.” Building and Environment, 169, p.106566. https://doi.org/10.1016/j.buildenv.2019.106566 

Julien, R., Dreelin, E., Whelton, A. J., Lee, J., Gim, T., Kara, A., & Jade, D. (2020). Knowledge gaps and risks associated with premise plumbing drinking water quality. November 2019, 1–18. https://doi.org/10.1002/aws2.1177

Julien, R., Safferman, S. (2015) “Evaluation of food processing wastewater loading characteristics on metal mobilization within the soil.” Journal of Environmental Science and Health Part A Toxic/Hazardous Substances & Environmental Engineering, 50(14):1-6