USGS Professional Pages
Deborah Stoliker is a hydrologist with the USGS National Research Program. Her research focuses on understanding geochemical processes occuring at the mineral-water interface which control the fate and transport of contaminants in the environment including metal and radionuclide sorption and precipitation reactions, redox transformations, nitrogen cycling, and surface complexation modeling coupled with reactive transport modeling.
2002: M.S., Geological and Environmental Sciences, Stanford University
2000: B.S., Chemsitry, Virginia Polytechnic Institute and State University (minors in Geological Sciences and Environmental Science)
2003-present: Hydrologist, U.S. Geological Survey, Menlo Park, CA
2000-2002: Research Assistant / Teaching Assistant, Stanford University, Stanford, CA
1999: Seaborg Institute Research Fellow, Los Alamos National Laboratory, Los Alamos, NM
1998-1999: Undergraduate Research Assistant, Virginia Tech, Blacksburg, VA
1995-1998: Laboratory Technician / Research Intern, Advanced Asphalt Technologies, Sterling, VA
PublicationsStoliker, D.L., Kaviani, N., Kent, D.B., Davis, J.A., 2013, Evaluating ion exchange resin efficiency and oxidative capacity for the separation of uranium(IV) and uranium(VI), Geochemical Transactions, v. 14, DOI: 10.1186/1467-4866-14-1. [Link]
Stoliker, D.L, Liu, C., Kent, D.B., Zachara, J.M., 2013, Characterizing particle-scale equilibrium adsorption and kinetics of uranium(VI) desorption from U-contaminated sediments, Water Resources Research, v. 49, DOI: 10.1002/wrcr.20104. [Link]
Stoliker, D.L., Campbell, K.M., Fox, P.M., Singer, D.M., Kaviani, N., Carey, M., Peck, N.E., Bargar, J.R., Kent, D.B., Davis, J.A., 2013, Evaluating chemical extraction techniques for the determination of uranium oxidation state in reduced aquifer sediments, Environmental Science and Technology, v. 47, p. 9225-9232. [Link]
Yin, J., Haggerty, R., Stoliker, D.L., Kent, D., Istok, J.D., Greskowiak, J., Zachara, J.M., 2011, Transient groundwater chemistry near a river: Effects on U(VI) transport in laboratory column experiments, Water Resources Research, v. 47, DOI: 10. 1029/2010WR009369. [Link]
Hay, M.B., Stoliker. D.L., Davis, J.A., Zachara, J.M., 2011, Characterization of the intragranular water regime within subsurface sediments: Pore volume, surface area, and mass transfer limitations, Water Resources Research, v. 47, DOI: 10. 1029/2010WR010303 [Link]
Stoliker, D.L., Kent, D.B., Zachara, J.M., 2011, Quantifying differences in the impact of variable chemistry of equilibrium uranium(VI) adsorption properties of aquifer sediments, Environmental Science and Technology, v. 45, p. 8733-8740. [Link]
Bond, D.L, Davis, J.A., Zachara, J.M., 2007, Uranium(VI) release from contaminated vadose zone sediments: Estimation of potential contributions from dissolution and desorption, in Adsorption of Metals by Geomedia II, Barnett, M.O. and Kent D.B (Eds.), Academic Press, San Diego, CA, p. 379-420. [Link]
Bond, D.L., Fendorf, S., 2003, Kinetic and structural constraints of chromate reduction by green rusts, Environmental Science and Technology, v. 37, p. 2750-2757. [Link]
Bond, D.L., 2002, Chromium reduction via green rusts, Masters Thesis, Stanford University, 109 pp.
Bond, D.L., Clark, D.L., Donohoe, R.J., Gordon, J.C., Gordon, P.L., Keogh, D.W., Scott, B.L., Tait, C.D., Watkin, J.G., 2001, A model of trivalent actinides in media containing high carbonate concentrations - structural characterization of the lanthanide tetracarbonate [Co(NH3)6][Na(u-H2O)(H2O)4]2[Ho(CO3)4].4H2O, European Journal of Inorganic Chemistry, v. 11, p. 2921-2926. [Link]
Bond, D.L., Clark, D.L., Donohoe, R.J., Gordon, J.C., Gordon, P.L., Keogh, D.W., Scott, B.L., Tait, C.D., Watkin, J.G., 2000, A new structural class of lanthanide carbonates: Synthesis, properties, and x-ray structure of the one-dimensional chain complex [Co(NH3)6]6[K2(H2O)10][Nd2(CO3)8]2.2H2O, Inorganic Chemistry, v. 39, p. 3934-3937. [Link]
Stoliker D.L., Repert, D.A., Smith R.L., LeBlanc D.R., McCobb T.D., Thomas B., Conaway C.H., Hyun S.P., Koh D., Kent D.B. (2013) Processes influencing the fate and transport of nitrate and ammonium during discharge from groundwater to surface water ponds on western Cape Cod, Massachusetts, USA. Oral Presentation, 125th Geological Society of America Meeting, Denver, CO.
Stoliker D.L., Liu C., Kent D.B., Zachara J.M. (2012) An experimental and modeling study of grain-scale uranium desorption from field-contaminated sediments and the potential influence of microporosity on mass-transfer. Poster, American Geophysical Union Fall 2012 Meeting, San Francisco, CA.
Stoliker D. L., Kent D.B., Liu C., Zachara J.M. (2011) Characterizing and modeling grain-scale uranium mass transfer at the Hanford IFRC. Poster, DOE-SBR 6th Annual PI Meeting, Washington, D.C.
Stoliker D. L., Kent D.B., Yin J., Haggerty R., Hay M.B., Davis J.A., Zachara J.M. (2010) Geochemical controls and grain-scale modeling of U(VI) mass-transfer in the Hanford 300-Area aquifer. Oral Presentation, 240th American Chemical Society National Meeting, Boston, MA.
Haggerty R., Kent D.B., Liu C., Yin J., Stoliker D.L., Zheng C., Ma R., Greskowiak J., Hammond G., Lichtner P., Istok J., Zachara J.M. (2010) Site geochemical reaction and mass transfer model for U(VI) transport and field validation for the Hanford IFRC. DOE-SBR 5th Annual PI Meeting, Washington, D.C.
Kent D.B., Stoliker D.L., Zachara J.M. (2009) Variability in uranium adsorption in saturated-zone sediments from the IFRC tracer-test well array in Hanford’s 300 area uranium plume. DOE-ERSP 4th Annual PI Meeting, Lansdowne, VA.
Stoliker D.L., Kent D.B., Davis J.A., Zachara, J.M. (2009) Processes controlling fate and transport of uranium(VI) in Hanford’s 300-Area. Oral Presentation, 238th American Chemical Society National Meeting, Washington, DC.
Stoliker D.L., Kent D.B., Davis, J.A. Zachara, J.M. (2009) Processes controlling fate and transport of uranium(VI) in Hanford’s 300-Area. Oral Presentation, 12th International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere, Kennewick, WA.
Davis J.A., Curtis G.P., Campbell K.M., Stoliker D.L., Fox P.F., Steefel C., Li L. Williams K., Stubbs J., Elbert D., Veblen L., Veblen D., Zachara J.M., Long P., Yabusaki S. (2008) Significance of Microporosity to Reactive Transport Modeling at DOE Sites. DOE-ERSP 3rd Annual PI Meeting, Lansdowne, VA.
Hay M.B., Stoliker D.L., Johnson K.J., Curtis G.P., Kent D.B., Davis J.A. (2008) Intragranular diffusion as a kinetic control for uranium desorption from contaminated sediments. 236th American Chemical Society National Meeting, Philadelphia, PA.
Hay M.B., Stoliker D.L., Johnson K.J., Curtis G.P., Kent D.B., Davis J.A. (2008) Modeling Grain-Scale Diffusion Kinetics Controlling Uranium Sorption and Transport in Contaminated Sediments. American Geophysical Union Fall 2008 Meeting, San Francisco, CA.
Johnson K.J., Hay M.B., Stoliker D.L., Kohler M.K., Kent D.B., Davis J.A. (2008) Rates of U(VI) desorption from various grain size fractions of sediments from a contaminated aquifer as a function of bicarbonate concentration. 236th American Chemical Society National Meeting, Philadelphia, PA.
Stoliker D.L., Davis J.A., Stubbs J., Elbert D., Veblen L. Zachara J. (2008) The role of diffusion as a limiting kinetic factor affecting U(VI) release to a Hanford aquifer. Oral Presentation, 236th American Chemical Society National Meeting, Philadelphia, PA.
Stoliker D.L., Hay M.B., Davis J.A., Zachara J.M. (2008) Micro- and nano-scale diffusion domains acting as kinetic controls for U(VI) release to the Hanford 300-Area aquifer. Poster, American Geophysical Union Fall 2008 Meeting, San Francisco, CA.
Davis J.A., Bond D.L., Arai Y., Veblen L., Stubbs J., Zachara J.M. (2007) Experimental Approach for Distinguishing Between Contaminant Release by Desorption and Dissolution Processes. 233rd American Chemical Society National Meeting, Chicago, IL.
Zachara J.M., Liu C., Qafoku N., McKinley J.P., Davis J.A., Stoliker D.L., Arai Y., Catalano J.G., Brown G.E. (2007) Kinetic Controls on the Desorption/Dissolution of Sorbed U(VI) and Their Influence on Reactive Transport. Abstracts, DOE-ERSP 2nd Annual PI Meeting, Lansdowne, VA.
Bond D.L., Davis J.A., Zachara J.M. (2006) U(VI) desorption and dissolution in a Hanford aquifer. Oral Presentation, 232nd American Chemical Society National Meeting, San Francisco, CA.
Bond D.L., Davis J.A., Zachara J.M. (2005) Chemical factors controlling U(VI) mobility in a Hanford aquifer. Poster, 15th Annual Goldschmidt Conference, Moscow, ID.
Bond D.L. and Fendorf S. (2002) Structural Influences of Green Rust on the Kinetics of Cr(VI) Reduction. Oral Presentation, Soil Science Society of America Annual Meeting, Indianapolis, IN.
My Science Topics
Geochemical Controls on Contaminant Transport
Uranium groundwater contamination and migration at the Hanford 300-Area
Much of my recent research has focused on understanding the geochemical processes controlling a persistent groundwater plume of uranium at the 300-Area of the Hanford reservation in Washington state. The plume is the result of nuclear fuel fabrication waste discharge to disposal ponds and trenches during the Cold War Era. Despite significant excavation of highly contaminated sediment, residual uranium remains adsorbed to sub-surface sediments.
Working as part of a large multi-disciplinary team, the Hanford Integrated Field Research Challenge and the Subsurface Biogeochemistry Science Focus Area, we have made significant progress in characterizing the factors influencing uranium mobility at the site. In particular, the slow release of uranium over time from the sediments is strongly impacted by the changes in groundwater chemistry (e.g. pH and the concentrations of dissolved calcium and carbonate) that result due to the seasonal mixing of groundwater and nearby Columbia River water as well as the mass transfer limitations imposed by signficiant microporosity of the sediment.
Through extensive batch, flow-through, and column laboratory experiments simulating a range of field-relevant conditions, we have developed surface complexation models that well describe the adsorption and desorption behavior of uranium on 300-Area sediments. These surface complexation models have been widely used by the interdisciplinary team in upscaling models of uranium reactive transport at the field site and included in numerous peer-reviewed publications vastly improving the knowledge base for predicitions of future plume migration.
345 Middlefield Road
Menlo Park, CA 94025
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