Tim Grundl

Associate Dean of Academics
School of Freshwater Sciences and Department of Geosciences


PhD, Geochemistry, Colorado School of Mines, 1988
MS, Geology, Northern Illinois University, 1980
BS, Geology, University of Delaware, 1975

Research Interests

  • The overall geochemistry of the deep sandstone aquifer of the upper Midwest. The last of the Pleistocene ice advances injected a large pulse of fresh water into this aquifer, and through the use of noble gas and stable isotope data, we are unraveling the dynamics of this one-time event.
  • The effects on shallow aquifers if treated effluent is used to recharge the aquifer either directly or indirectly by the use of riverbank filtration.
  • The development of a suite of in-situ probes for the rapid, screening-level detection of contamination in submerged sediments. These probes induce contaminant fluorescence using laser or x-ray excitation.
Recent and Selected Publications
Blair, B., Nikolaus, A., Hedman, C., Klaper, R., Grundl, T. J. (2015). Evaluating the Degradation, Sorption, and Negative Mass Balances of Pharmaceuticals and Personal Care Products during Wastewater Treatment. Chemosphere, 134, 395-401.

Elam, T., Grundl, T., Leupin, O., Descostes, M., (2013) “Design of an In-situ XRF Instrument for Elemental Diffusion Measurements” Advances in X-ray Analysis. Vol. 56:157-166.

Grundl, T. J., Magnusson, N., Brennwald, M., Kipfer, R. (2013) Mechanisms of subglacial groundwater recharge as derived from noble gas, 14C and stable isotopic data. Earth Planetary Sci. Let. 369-370:78-85.

Winkel, L.H.E., Johnson, C.A., Lenz, M., Grundl, T., Leupin, O.X., Amini, M., Charlet, L. (2012). Environmental Selenium-From Microscopic Processes to Global Understanding. Environmental Science and Technology (feature article), 46(2), 571-579.

Grundl, T., Haderlein, S., Nurmi, J., Tratnyek, P. (2011). Introduction to aquatic redox chemistry. In Tratnyek, P., Grundl, T., Haderlein, S. (Ed.), "Aquatic Redox Chemistry" ACS Symposium Series Vol. 1071, Oxford University Press, pp. 1-14.

Alessi, D., Grundl, T. J. (2008). Reduction of 2,4,6-trinitrotoluene (TNT) and hexahydro-1,3,5- trinitro-1,3,5-triazine (RDX) by hydroxyl-complexed Fe(II). Journal Environ. Engrg., 134(12), 937-943.


Groundwater chemistry, contaminant transport and degradation, environmental tracers