Geoff Tick

Geoffrey R. Tick



  • PhD, Hydrology and Water Resources, University of Arizona, 2003
    Emphasis: Contaminant Transport and Remediation
    Minor: Soil, Water, and Environmental Science
  • BS, Geology, Environmental Studies; Chemistry Minor, San Jose State University, 1996

Research Areas

  • Hydrogeology, Contaminant Fate and Transport, and Hydrology
  • Environmental Geochemistry, Biogeochemistry and Hydrochemistry


Research Interests

  • Investigation of contaminant transport in soil and groundwater systems.
  • Understanding the processes that influence transport of contaminants in porous media.
  • Impact of immiscible liquid sources on chemical transport in soil and groundwater systems.
  • Innovative technologies for the remediation of organic contaminants in the subsurface.
  • Enhanced-solubilization agents to improve the remediation of organic pollutants in groundwater.
  • Petroleum mobilization and recovery processes.
  • Laboratory, field, and theoretical investigations of contaminant transport in porous media.
  • Methods to characterize subsurface heterogeneity and subsurface contamination

Research Group

Contaminant Transport

Courses Taught

  • GEO 101: The Dynamic Earth
  • GEO 306: Hydrogeology
  • GEO 410/510: Soil and Groundwater Restoration
  • GEO 411/511: Contaminant Transport in Porous Media
  • GEO 525: Water Resource Management

Selected Publications


  • 2022  Johnson, G.R., Brusseau, M.L., Carroll, K.C., Tick, G.R., and Duncan, C.M. Global distributions, source-type dependencies, and concentration ranges ofper- and polyfluoroalkyl substances in groundwater. Science of the Total Environment, 841, 156602, 1-12.
  • 2022 Tick, G.R., Slavic, D.R., Akyol, N.H., Zhang, Y. Enhanced-solubilization and dissolution of multicomponent DNAPL from homogeneous porous media. J. Contam. Hydrol., 247, 103967, 1-14,
  • 2022  Zhou, J., Bao, W., Tick G.R., Moftakhari, H., Cao, Q., and Ye, F. A weighting function model for unsteady open channel friction. Journal of Hydraulic Research,
  • 2021  Zhou, J., Bao, W., Tick G.R., Moftakhari, Li, Y. and Cheng, L. A modified Chezy formula for one dimensional unsteady frictional resistance in open channel flow. Journal of Fluids Engineering, Vol. 143(5), 051303, 1-10.
  • 2021  Wu, C., Zhang, X., Wang, W., Lu, C., Zhang, Y., Qin, W., Tick, G.R., Liu, B., Shu, L. Groundwater level modeling framework by combining the wavelet transform with a long short-term memory data-driven model. Science of the Total Environment, 783, 146948, 1-16,
  • 2020  Yin, M., Ma, R., Zhang, Y., Wei, S., Tick, G.R., Wang, J., Sun, Z., Sun, H-G., Zheng, C., A distributed-order time fractional derivative model for simulating bimodal sub-diffusion in heterogeneous media. Journal of Hydrology, 591, 125504, 1-11,
  • 2020  Zhang, Y., Yu, X., Sun, H-G., Tick, G.R., Wei, W., Jin, B. Applicability of time fractional derivative models for simulating the dynamics and mitigation scenarios of COVID-19. Chaos, Solitons and Fractals, 138, 109959.
  • 2020  Yin, M., Zhang, Y., Rui Ma, R., Tick, G.R., Bianchi, M., Zheng, C. Wei, W., Wei, S., Liu, X. Super-diffusion affected by hydrofacies mean length and source geometry in alluvial settings. Journal of Hydrology, 582, 124515.
  • 2020 Tick, G.R. Oil Blob Imagery for Assessing Surfactant-Enhanced Aquifer Remediation. Argonne National Laboratory, APS Science, ANL-19/27 Vol.2 • SSN 1931-5007 • June 2020.
  • 2020  Gu, X., Sun, H., Tick, G.R., Lu, Y., Zhang, Y., Zhang, Y., Schilling, K. Identification and scaling behavior assessment of the dominant hydrological factors of nitrate concentrations in streamflow. Journal of Hydrologic Engineering, 25(6), June, 2020.
  • 2020  Lu, B., Liu, X., Dong, P., Tick, G.R., Zheng, C., Zhang, Y., Mahmood-Ul-Hassan, M., Bai, H., Zheng, C., and Lamy, E. Quantifying fate and transport of nitrate in saturated soil systems using fractional-derivative model. Applied Mathematical Modelling, 81, 279-295.
  • 2019 Tick, G.R. Remediation strategies for nonaqueous phase liquid (NAPL) contaminant sources in groundwater: Innovations and challenges. Hydrolink – International Association of Hydro-Environment Engineering and Research (IAHR) (published),
  • 2019 Ellis, J.H., Dimova, N.T., Tick, G.R., Zheng, C. Evaluation of Groundwater: A Coupled Numerical Model and 222Rn Method. Hydrogeology Journal, (In-Review).
  • 2019 Booth, J.M., Tick G.R., Akyol, N.H., Greenberg, R.R. and Zhang, Y. Experimental comparison of agent-enhanced flushing for the recovery of crude oil from saturated porous media. J. Contam. Hydrol., 226 (103504), 1-18,
  • 2019 Milavec, J., Tick G.R., Brusseau, M.L., and Carroll, K.C. 1,4-Dioxane cosolvency impacts on trichloroethene dissolution and sorption. Environmental Pollution, 252, Part A, 777-783,
  • 2019 Ghosh, J., Tick, G.R., Akyol, N.H., Zhang, Y. A pore-scale investigation of heavy crude oil trapping and removal during surfactant-enhanced remediation. J. Contam. Hydrol., 223 (103471), 1-15,
  • 2019  Dawley, S., Zhang, Y., Liu, X., Jiang, P., Tick, G.R., Sun, H-G., Zheng, C., and Chen, L. Statistical Analysis of Extreme Events in Precipitation, Stream Discharge, and Groundwater Head Fluctuation: Distribution, Memory, and Correlation, Water, 11, 707,
  • 2018 Lu, B., Song, J., Zhang, Y., Li, S., Tick, G.R., and Zhu, J. Quantifying transport of arsenic in both natural soils and relatively homogeneous porous media using stochastic models, Soil Sci. Soc. Amer. Journal, Vol. 82 (5), 1057-1070, https://doi:10.2136/sssaj2017.12.0439.
  • 2018 Jiang, P., Dawley, S., Lu, B.Q, Zhang, Y., Tick, G.R., Sun, H.G. and Zheng, C.M. Precipitation Storm Property Distributions with Heavy Tails Follow Tempered Stable Density Relationships, Journal of Physics: Conference Series1053 (2018) 012119, doi:10.1088/1742-6596/1053/1/012119.
  • 2017 Mateas, D.J., Tick, G.R., and Carroll, K.C. In Situ Stabilization of NAPL Contaminant Source-Zones as a Remediation Technique to Reduce Mass Discharge and Flux to Groundwater. J. Contam. Hydrol., 204, 40-56,
  • 2017 Padgett, M.C., Tick, G.R., Carroll, K.C., and Burke, W.R. Chemical Structure Influence on NAPL Mixture Nonideality Evolution, Rate-limited Dissolution, and Contaminant Mass Flux. J. Contam. Hydrol., 198, 11-23,
  • 2016 Murgulet, D. and Tick, G.R. Effect of Variable-Density Groundwater Flow on Nitrate Flux to Coastal Waters. Hydrol. Proc. J., 30(2): 302-319doi: 10.1002/hyp.10580.
  • 2015 Tick, G.R., Harvell, J.R., and Murgulet, D. Intermediate-Scale Investigation of Enhanced-Solubilization Agents on the Dissolution and Removal of a Multicomponent Dense Nonaqueous Phase Liquid (DNAPL) Source. Water Air and Soil Pollution, 226(11), art. #371, doi: 10.1007/s11270-015-2636-7.
  • 2015 Zhang, Y., Green, C.T., and Tick, G.R. Peclet Number as Affected by Molecular Diffusion Controls Transient Anomalous Transport in Alluvial Aquifer-Aquitard Complexes. Journal of Contaminant Hydrology, 177: 220-238, doi: 10.1016/j.jconhyd.2015.04.001.
  • 2013 Ghosh, J. and Tick, G.R. A Pore Scale Investigation of Crude Oil Distribution and Removal from Homogeneous Porous Media during Surfactant-Induced Remediation. Journal of Contaminant Hydrology, 155:20-30, doi: 10.1016/j.jconhyd.2013.09.003.
  • 2013 Murgulet, D. and Tick, G.R. Understanding the Sources and Fate of Nitrate in a Highly Developed Coastal Aquifer System. Journal of Contaminant Hydrology, 155:69-81, doi: 10.1016/j.jconhyd.2013.09.004.
  • 2013 Murgulet, D. and Tick, G.R. Characterization of Flow Dynamics and Vulnerability in a Coastal Aquifer System. Ground Water, 51(6):893-903, doi: 10.1111/gwat.12020.
  • 2012 Borden, A.K., Brusseau, M.L., Carroll, K.C., Akyol, N.H., Berkompas, J., Miao, Z., McMillan, A., Jordan, F., Tick, G.R., Waugh, W.J., and Glenn, E.P. Ethanol Addition for Enhancing Denitrification at the Uranium Mill Tailing Site in Monument Valley, AZ. Journal of Water, Air, and Soil Pollution, doi: 10.1007/s11270-011-0899-1.
  • 2011 McCray, J.E., Tick, G.R., Jawitz, J.W., Brusseau, M.L., Gierke, J.S., Falta, R.W., Knox, R.C., Sabatini, D.A., Harwell, J.H., Annable, M.D. Remediation of NAPL Source-zones: Lesson Learned from Field Studies at Hill and Dover AFB. Ground Water, 49(5):727-744, doi: 10.1111/j.1745-6584.2010.00783.x.
  • 2011 Bianchi, M., Zheng, C., Tick, G.R., and Gorelick, S.M. Investigation of Small-scale Preferential Flow Paths with a Dipole Forced-gradient Tracer Test. Ground Water, 49(4): 503-514, doi: 10.1111/j.1745-6584.2010.00746.x.
  • 2011 Bianchi, M., Zheng, C., Wilson, C., Tick, G.R., Liu, G., and Gorelick, S.M. Spatial Connectivity in a Highly Heterogeneous Aquifer: From Cores to Preferential Flow Paths. Water Resources Research, 47(W05524), doi: 10.1029/2009WR008966.
  • 2010 Liu, G., Zheng, C., Tick, G.R., Butler, J.J., and Gorelick, S.M. Relative Importance of Dispersion and Rate-limited Mass Transfer in Highly Heterogeneous Porous Media: Analysis of a New Tracer Test at the MADE Site. Water Resources Research, 46:W03524, 1-8, doi 10.1029/2009WR008430.
  • 2009 Tick, G.R., and Rincon, E.A. Effect of Enhanced-Solubilization Agents on Dissolution Mass Flux from Uniformly Distributed Immiscible-Liquid Trichloroethene (TCE) in Homogeneous Porous Media. Water Air and Soil Pollution, 204:315-332, doi: 10.1007/s11270-009-0047-3.
  • 2008 Murgulet, D. and Tick, G.R. Assessing the Extent and Sources of Nitrate Contamination in the Aquifer System of Southern Baldwin County, Alabama. Environmental Geology, 58: 1051-1065, doi 10.1007/s00254-008-1585-5.
  • 2008 Murgulet, D. and Tick, G.R. Assessing the Extent of Saltwater Intrusion in the Aquifer System of Southern Baldwin County, Alabama, Proceedings Paper of the 20th Salt Water Intrusion Meeting (SWIM), June 23-27.
  • 2008 Marble, J.C., DiFilippo, E.L., Zhang, Z., Tick, G.R., and Brusseau, M.L. Application of a Lumped-process Mathematical Model to Dissolution of Non-uniformly Distributed Immiscible Liquid in Heterogeneous Porous Media. Journal of Contaminant Hydrology: 100, 1-10.
  • 2007 Bianchi, M., Zheng, C., Tick, G.R., Gorelick, S. Evaluation of Fickian and Non-Fickian Models for Solute Transport in Porous Media Containing Decimeter-scale Preferential Flow Paths; Calibration and Reliability in Groundwater Modelling: Credibility of Modelling; Proceedings of ModelCare 2007 Conference Paper, Copenhagen, Denmark, September, IAHS Publ. 320, 2008.
  • 2007 Murgulet, D. and Tick, G.R. The Extent of Saltwater Intrusion in Southern Baldwin County, Alabama. Environmental Geology; doi 10.1007/s00254-007-1068-0.
  • 2007 Tick, G.R., McColl, C.M., Yolcubal, I.M., Brusseau, M.L. Gas-phase Diffusive Tracer Test for the In-situ Measurement of Tortuosity in the Vadose Zone. Journal of Water, Air, and Soil Pollution: 184: 355-362, doi 10.1007/s11270-007-9403-3.
  • 2006 Murgulet, D. and Tick G.R. Alabama Department of Conservation Natural Resources (ADCNR)Report UA 5-30402, PHASE I: The Extent of Saltwater Intrusion in Southern Baldwin County, Alabama, Technical Report.
  • 2006 Environmental and Pollution Science, 2nd ed., Academic Press, €œChapter 17 Groundwater Pollution by Brusseau M.L and Tick G.R.
  • 2005 Wood, A.L., Enfield, C.G., Field Evaluation of Enhanced DNAPL Source Removal, USEPA Technical Report and SERDP Report: CU-368. Contributing Author: Tick, G.R. et al.
  • 2004 Tick, G.R. and Vlassopoulos, D. Review in Software Spotlight: AqQA: Quality Assurance and Presentation Graphics for Ground Water Analyses, Ground Water, 42(3) May-June, p. 326.
  • 2003 Tick, G.R.; F., Lourenso; A.L., Wood; M.L., Brusseau. Pilot-scale Demonstration of Cyclodextrin as a Solubility-Enhancement Agent for the Remediation of a Tetrachloroethene-Contaminated Aquifer.Environmental Science and Technology, 37(24), 5829-5834.
  • 2002 Brusseau, M.L., Z., Zhang, N.T., Nelson, R.B., Cain, G.R., Tick, and M., Oostrom. Dissolution of Non-Uniformly Distributed Immiscible Liquid: Intermediate-Scale Experiments and Mathematical Modeling. Environmental Science and Technology, 36(5), 1033-1041.