Heather Gall, Ph.D.

Assistant Professor of Agricultural and Biological Engineering, Ph.D.


    Emerging Contaminants
    Contaminant Fate and Transport
    Environmental Hydrology



    About Me

    Research Interests

    My research interests center around the fate and transport of emerging contaminants. The land-application of biosolids and animal waste to agricultural fields as a nutrient source inadvertently introduces pharmaceuticals and personal care products (PPCPs) to the environment. These compounds can cause adverse impacts to fish and other sensitive aquatic species at trace concentrations as low as 1 ng/L. We seek to understand how the coupling of hydrology, biogeochemistry, and human activities affects the export of these compounds from agricultural fields to surface water bodies.


    I teach the following courses every fall semester:
    • ASM (ERM) 309 Measurement & Monitoring of Hydrologic Systems (3)
    • BE 467 Design of Stormwater and Erosion Control Facilities (3)
    For information about courses please visit the LionPATH Course Catalog.

    EDC Footprint Calculator

    Products we use in our everyday lives can be a source of endocrine disrupting chemicals in the environment. Download our Endocrine Disrupting Compounds Footprint Calculator to estimate the amount of EDCs in your personal care and household products.


    • Mina, O., H.E. Gall, L.S. Saporito, and P.J.A. Kleinman. 2016. Estrogen transport in surface runoff from agricultural fields treated with two applications methods of dairy manure. Journal of Environmental Quality. 45:2007-2015. doi:10.2134.jeq2016.05.0173
    • Hopkins, I., H.E. Gall, and H. Lin. 2016. Natural and anthropogenic controls on the frequency of preferential flow occurrence in a wastewater spray irrigation field. Agricultural Water Management. 178:248-257. doi:10.1016/j.agwat.2016.09.011
    • Jovanovic, T., S. García., H.E. Gall, and A. Mejía. 2016. Complexity as a streamflow metric of hydrologic alteration. Stochastic Environmental Research and Risk Assessment. doi:10.1007/s00477-016-1315-6
    • Jovanovic, T., A. Mejía, H.E. Gall, and J. Gironás. 2016. Effect of urbanization on the long-term persistence of streamflow records. Physica A, 447:208-221. doi:10.1016/j.physa.2015.12.024
    • Gall, H.E., N.B. Basu, M.L. Mashtare, P.S.C. Rao, and L.S. Lee. 2016. Assessing the impacts of anthropogenic and hydro-climatic drivers on estrogen legacies and trajectories. Advances in Water Resources, 87:19-28. doi:10.1016/j.advwatres.2015.10.012
    • Gall, H.E., S.A. Sassman, B. Jenkinson, L.S. Lee, and C.T. Jafvert. 2015. Comparison of export dynamics of nutrients and animal-borne estrogens from a tile-drained Midwestern agroecosystem. Water Research, 72:162-173. doi:10.1016/j.watres.2014.08.041
    • von Freyberg, J., D. Radny, H. Gall, and M. Schirmer. 2014. Implications of hydrologic connectivity between hillslopes and riparian zones on streamflow composition. Journal of Contaminant Hydrology, 169:62-74. doi:10.1016/j.jconhyd.2014.07.005
    • Gall, H.E., J. Park, C.J. Harman, P.S.C. Rao, and J. Jawitz. 2013. Landscape filtering of hydrologic and biogeochemical responses in managed landscapes. Journal of Landscape Ecology, 28:651-664. doi:10.1007/s10980-012-9829-x
    • Gall, H.E., S.A. Sassman, B. Jenkinson, L.S. Lee, and C.T. Jafvert. 2013. Hormone loads exported by a tile-drained agroecosystem receiving animal manure wastes. Hydrological Processes, doi:10.1002/hyp.9664
    • Park, J., H.E. Gall, D. Niyogi, and P.S.C. Rao. 2013. Temporal trajectories of wet deposition across hydro-climatic regimes: Role of urbanization and regulations at U.S. and East Asia sites. Atmospheric Environment, 70:280-288. doi:10.1016/j.atmosenv.2013.01.033
    • Leet, J., L.S. Lee, H.E. Gall, R.R. Goforth, S.A. Sassman, J.M. Lazorchak, M.E. Smith, C.T. Jafvert, and M.S. Sepulveda. 2012. Assessing impacts of land-applied wastes from concentrated animal feeding operations on fish populations and communities. Environmental Science & Technology, 46:13440-13447. doi:10.1021/es302599t
    • Gall, H.E., S.A. Sassman, L.S. Lee, and C.T. Jafvert. 2011. Hormone discharges from a Midwest tile-drained agroecosystem receiving animal wastes. Environmental Science & Technology. 45:8755-8764. doi:10.1021/es2011435
    • Leet, J., H.E. Gall, and M.S. Sepulveda. 2011. A review of studies on androgen and estrogen exposure in fish early life stages: Effect on gene and hormonal control of sexual differentiation. Journal of Applied Toxicology, 31:379-398. doi:10.1002/jat.1682
    • Gall, H.E., C.T. Jafvert, and B. Jenkinson. 2010. Integrating hydrograph modeling with real-time monitoring to generate hydrograph-specific sampling schemes. Journal of Hydrology, 393:331-340. doi:10.1016/j.jhydrol.2010.08.028

    Conference Papers

    • Opalinski, N., D. Schultz, H.E. Gall, and M. Royer. 2016. Development of a decision-making framework for BMP design to reduce loads during "hot moments". St. Joseph, MI. ASABE. doi:10.13031/aim.20162456929
    • Gluberman, M., L. Garcia, R. Taylor, and H.E. Gall. 2016. Development of an endocrine disrupting compounds footprint calculator. St. Joseph, MI. ASABE. doi:10.13031/aim.2016202455889
    • Mina, O., H.E. Gall, B. Carlson, and T. Langkilde. 2014. A preliminary assessment of endocrine disrupting compounds in vernal pools in Central Pennsylvania. St. Joseph, MI. ASABE. doi:10.13031/aim.20141910944


    B.S. Civil Engineering, Rutgers University, May 2007 M.S. Civil Engineering, Purdue University, Dec 2008 Ph.D. Civil Engineering, Purdue University, May 2011