Thomas R. Holm
Illinois State Water Survey
2204 Griffith Drive
Champaign, Illinois 61820
217/333-2604
217/333-6540 (fax)
trholm@illinois.edu (e-mail)
Education
Ph.D., Environmental Engineering Science, 1978, California Institute of Technology,
Pasadena, California
M.S., Environmental Engineering Science, 1972, California Institute of Technology
B.S., Chemistry, 1971, Portland State University, Portland, Oregon
Professional Experience
7/84-Present Geochemist, Center for Groundwater Science, Illinois State Water Survey
Principal investigator or project manager for research projects on chemical processes that
affect water quality.
11/79-7/8
Research Assistant Professor, Civil and Mineral Engineering Department,
University of Minnesota, Minneapolis
Project leader for research on chemistry of Aquifer Thermal Energy Storage. Taught
"Introduction to Environmental Engineering Problems and Analysis." Supervised one
chemist.
2/77-11/79 Postdoctoral Research Associate, Water Chemistry Program, University of
Wisconsin, Madison
Project leader for research on arsenic chemistry and transport in sediments and waters of
Menominee River and Green Bay and treatment of arsenic-contaminated waters.
Supervised one chemist and two students.
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Professional Activities
Memberships:
American Chemical Society
Reviewer for- Environmental Science and Technology, Journal of the American Water
Works Association, Chemical Geology, Journal of Contaminant Hydrology, Ground Water,
Environmental Toxicology and Chemistry, Water International, Journal of the Association
of Official Analytical Chemists, Mikrochimica Acta, Ground Water Monitoring and
Remediation; U. S. Geological Survey, U. S. Environmental Protection Agency, National
Science Foundation, Petroleum Research Fund.
Chairman of Joint Task Groups on Sulfide (19th and 20th ed.), Nitrate (20th and 21st ed.)
and Total Nitrogen (21st ed.) "Standard Methods for the Examination of Water and
Wastewater."
Member of Project Advisory Committee for "The Role of Inorganic Anions and Natural
Organic Matter in the Corrosion of Copper Pipe" 1992-1994, "Corrosion and Metal
Release for Lead-Containing Plumbing Materials: Influence of Natural Organic Matter and
Corrosion Mitigation" 1994-1997. Projects funded by the American Water Works
Association Research Foundation.
Chairman of Larson Aquatic Research Scholarship Committee, American Water Works
Association.
Member of Ph.D. examining committees, Civil Engineering Department, University of
Illinois, 1993, 2001, 2005.
Member of Technical Review Panel, U. S. Department of Energy Field Experiment
Workshop, Richland, WA, July 16-17, 1991.
Listed in "Who's Who in the Midwest" and "Who's Who Environmental Registry."
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Peer-Reviewed Publications
Holm, T. R., M. A. Anderson, D. G. Iverson, and R. R. Stanforth. 1979. "Heterogeneous
Interactions of Arsenic in Aquatic Systems." In E. A. Jenne (ed.), Chemical Modeling in
Aqueous Systems, Symposium Series 93, Washington D.C.:American Chemical Society,
711-736.
Iverson, D. G., M. A. Anderson, T. R. Holm, and R. R. Stanforth. 1979. "An Evaluation of
Column Chromatography and Flameless Atomic Absorption Spectrophotometry for
Arsenic Speciation as Applied to Aquatic Systems." Environmental Science and Technology
13(12):1491-1494.
Holm, T. R., M. A. Anderson, D. G. Iverson, and R. R. Stanforth. 1980. "The Influence of
Adsorption on the Rates of Degradation of Arsenic Species." Limnology and Oceanography
25(l):23-31.
Iverson, D. G., M. A. Anderson, T. R. Holm, and R. R. Stanforth. 1980. “Column
Chromatography and Flameless Atomic Absorption Methods for Arsenic Speciation in
Sediments.” In R. A. Baker (ed.) Contaminants and Sediments. Volume 2. Analysis,
Chemistry, Biology. Ann Arbor, MI:Ann Arbor Science, 29-41.
Holm, T. R., S. J. Eisenreich, H. C. Lee, and N. L. Holm. 1987. "Groundwater Geochemistry
of Short-Term Aquifer Thermal Energy Storage Test Cycles." Water Resources Research
23(6), 1005-1019.
Holm, T. R., G. K. George, and M. J. Barcelona. 1987. "Fluorometric Determination of
Hydrogen Peroxide in Groundwater." Analytical Chemistry 59(4):582-586.
Holm, T. R., G. K. George, and M. J. Barcelona. 1988. "Oxygen Transfer through Flexible
Tubing and Its Effects on Ground Water Sampling Results.” Ground Water Monitoring
Review 8:83-89.
Barcelona, M. J., T. R. Holm, M. R. Schock, and G. K. George. 1989. "Spatial and Temporal
Gradients in Aquifer Oxidation-Reduction Conditions." Water Resources Research
25(5):991-1003.
Holm, T.R. 1989. "Comments on ‘Computing the Equilibrium Composition of Aqueous
Systems: An Iterative Solution at Each Step in Newton-Raphson'." Environmental Science
and Technology 23(12), 1531-1532.
Holm, T.R. and C.D. Curtiss III. 1989. "A Comparison of Oxidation-Reduction Potentials
Calculated from the As(V)/As(III) and Fe(III)/Fe(II) Couples with Measured
Platinum-Electrode Potentials in Ground Waters." Journal of Contaminant Hydrology
5:67-81.
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Holm, T. R. 1990. "Critical Comment on Trace Metal Speciation in Landfill Leachate.
Applied Geochemistry 5(3):367-369.
Holm, T. R. 1990. "Copper Complexation by Natural Organic Matter in Contaminated
and Uncontaminated Ground Water." Chemical Speciation and Bioavailability 2(2):63-76.
Holm, R. and C.D. Curtiss III. 1990. "Copper Complexation by Natural Organic Matter in
Ground Water." In D. C. Melchior and R. L. Bassett (eds.), Chemical Modeling in Aqueous
Systems II, Symposium series 416, Washington D.C.:American Chemical Society, 508-518.
Holm, T. R. and S. H. Smothers. 1990. "Characterizing the Lead-Complexing Properties
of Polyphosphate Water Treatment Products by Competing-Ligand Spectrophotometry
Using 4-(2-pyridylazo)Resorcinol." International Journal of Environmental Analytical
Chemistry 41:71-82.
Barcelona, M. J. and T. R. Holm. 1991. "Oxidation-Reduction Capacities of Aquifer
Solids." Environmental Science and Technology 25(9):1565-1572.
Holm, T. R. and M. R. Schock. 1991. "Potential Effects of Polyphosphate Water
Treatment Products on Lead Solubility in Plumbing Systems." Journal of the American
Water Works Association 83(7):76-82.
Alberga, L., T. H. Holm, G. Tiravanti, and D. Petruzzelli. 1994. "Electrochemical
Determination of Cadmium Sorption on Kaolinite." Environmental Technology
15(3):61-70.
Holm, T. R. and X.-F. Zhu. 1994. "Sorption to Kaolinite of Cd2+, Pb2+ , and Cu2+, from
Landfill Leachate-Contaminated Groundwater." Journal of Contaminant Hydrology
16(3):271-287.
Holm, T. R., W. R. Kelly, L. F. Sievers, and D. L. Webb. 1997. "A Comparison of
Ultraviolet Spectrometry with Other Methods for the Determination of Nitrate in Water."
Spectroscopy 12(9):38-45.
Holm, T. R. and M. R. Schock. 1998. "Computing Saturation Indices and Calcium
Carbonate Precipitation Potential Using Spreadsheet Programs." Journal of the
American Water Works Association 90(7):80-89.
Holm, T. R. 2002. “Effects of Carbonate/Bicarbonate, Silica, and Orthophsophate on
Arsenic Sorption to Hydrous Ferric Oxide.” Journal of the American Water Works
Association 94(4):174-181.
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Holm, T. R. and M. Edwards. 2003. “Metaphosphate Reversion in Laboratory and Pipe Rig
Experiments.” Journal of the American Water Works Association 95(4):172-178.
Kelly, W.R., H.A. Wehrmann, T.R. Holm, J.L. Talbott, and L.M. Skowron, 2003. Subsurface
movement of zinc from contaminated dredge spoils at a periodically flooded site.
Environmental Geology 45:23-34.
Kirk, M. F., T. R. Holm, J. H. Park, Q. S. Jin, R. A. Sanford, B. W. Fouke, and C. M. Bethke.
2004. “Bacterial Sulfate Reduction Controls Natural Arsenic Contamination of
Groundwater.” Geology. 32(11):953-956.
Machesky, M. L., Slowikowski, J. A., Cahill, R. A., Bogner, W. C., Marlin, J. C., Holm, T. R.,
Darmody, R. G. 2005. “Sediment Quality and Quantity Issues Related to the Restoration of
Backwater Lakes along the Illinois River Waterway.” Aquatic Ecosystem Health &
Management 8(1):33-40.
Kelly, W. R., T. R. Holm, S. D. Wilson, and G. S. Roadcap. 2005. “Arsenic in Glacial Aquifers:
Sources and Geochemical and Hydrogeological Controls.” Ground Water, 43(4):500-510.
Holm, T. R., W. R. Kelly, S. D. Wilson, G. S. Roadcap, J. L. Talbott, and J. S. Scott. 2005.
Arsenic Distribution and Speciation in the Mahomet And Glasford Aquifers, Illinois. In
Advances in Arsenic Research: Integration of Experimental and Observational Studies and
Implications for Mitigation, Occurrence, Cycling and Natural Attenuation. Symposium
Series 915, Washington D.C.:American Chemical Society, 148-160.
Mehnert, E., H. H. Hwang, T. M. Johnson, R. A. Sanford, W. C. Beaumont, and T. R. Holm.
2007. “Denitrification in the shallow ground water of a tile-drained, agricultural
watershed.” Journal of Environmental Quality, 36:80-90.
Holm, T. R., W. R. Kelly, S. D. Wilson, and J. L. Talbott. 2008. “Arsenic removal at Illinois
iron removal plants.” Journal of the American Water Works Association 100(9):139-150.
Machesky, M. L., T. R. Holm, J. A. Slowikowski. 2010. “Phosphorus Speciation in Stream
Bed Sediments from an Agricultural Watershed: Solid-Phase Associations and Sorption
Behavior.” Aquatic Geochemistry 16(4):639-662.
Proceedings and Reports
Anderson, M. A., T. R. Holm, D. G. Iverson, and R. R. Stanforth. 1980. "Input, Deposition,
and Conversion of Arsenic in an Aquatic Environment." Final project report to U. S.
Environmental Protection Agency, Athens, Georgia.
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Holm, T. R., S. J. Eisenreich, H. C. Lee, and N. L. Holm. 1984. Water Chemistry chapter of
report on Aquifer Thermal Energy Storage. Minnesota Geological Survey.
Holm, T. R., M. J. Barcelona, and G. K. George. 1985. "Dissolved Oxygen and
Oxidation-reduction Potentials in Ground Water." EPA/600/S2-86/042.
Holm, T. R. 1986. "Critical Discussion of Adsorption of Inorganic Arsenic and
Organoarsenicals on Hydrous Oxides." Proceedings of International Symposium on Metal
Speciation, Separation, and Recovery. Lewis, Chelsea, MI.
Holm, T. R. and M. J. Barcelona. 1988. "Metal Complexation by Natural Organic Matter in
Ground Water." Ground Water Geochemistry Conference Proceedings. National Water
Well Assoc., Dublin, OH 43017, pp. 245-267.
Holm, T. R. and C. D. Curtiss. 1988. "Arsenic Contamination in East-Central Illinois
Ground Waters." ILENR/RE-WR-88/16 Illinois Department of Energy and Natural
Resources, Springfield.
Wehrmann, H. A., T. R. Holm, R. C. Berg, L. P. LeSeur, C. D. Curtiss III, and A. N. Stecyk.
1988. "Regional Ground-water Quality Characterization of the Rockford Area, Illinois."
HWRIC RR-027. Hazardous Waste Research and Information Center, Savoy, IL 61874.
114 pp.
Holm, T. R., S. H. Smothers, and X.-F. Zhu. 1989. "Lead Complexation by Polyphosphate
Water Treatment Products." Proceedings of 1989 Water Quality Technology Conference.
American Water Works Association, Denver, CO.
Holm, T. R., X.-F. Zhu, and S. H. Smothers. 1990. "Trace Metal Mobility in Aquifer
Systems: The Role of Organic Matter in Landfill Leachate and Ground Water." Proceedings
of 1990 Ground Water Geochemistry Conference. National Water Well Association,
Dublin, OH.
Holm, T. R., X.-F. Zhu, and S. H. Smothers. 1990. "Trace Metal Mobility in Aquifer
Systems: The Role of Organic Matter in Landfill Leachate and Ground Water." Report to
Office of Solid Waste Research, Institute for Environmental Studies, University of Illinois,
Urbana.
Walton, M., M. C. Hoyer, S. J. Eisenreich, T. R. Holm, N. L. Holm, R. Kanivetsky, M. A. Jirsa, H.
C. Lee, J. L. Lauer, R. T. Miller, J. L. Norton, H. Runke. 1991. The University of Minnesota
Aquifer Thermal Energy Storage (ATES) Field Test Facility – System Description, Aquifer
Characterization, and Results of Short-Term Test Cycles. Pacific Northwest Laboratory,
Richland, WA. PNL-7220.
Holm, T. R., M. A. G. Baig. 1992.
"Cadmium Sorption to Kaolinite and Transport through
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Simulated Soil." Report to Office of Solid Waste Research, Institute for Environmental
Studies, University of Illinois, Urbana.
Holm, T. R. 1995. "Ground-Water Quality in the Mahomet Aquifer, McLean, Logan, and
Tazewell Counties." Contract Report 579, Illinois State Water Survey, Champaign.
Holm, T. R. 1996. "Treatment of Spent Chemical Oxygen Demand Solutions for Safe
Disposal." TR-20, Hazardous Waste Research and Information Center, Champaign, Illinois.
Holm, T.R. 1996. “Removal of Arsenic from Water by Iron Removal Processes.”
Proceedings of 1996 Water Quality Technology Conference. American Water Works
Association, Denver, CO.
Smothers, K. W., T. R. Holm. 1997. "Corrosion of Tin-Antimony Solder at High pH
Values." Proceedings, Corrosion-97, National Association of Corrosion Engineers,
Houston, TX. Paper 451.
Edwards, M., L. S. McNeill, T. R. Holm. 1999. “Role of Phosphate Inhibitors in Mitigating Pb
and Cu Corrosion.” Final project report to American Water Works Association Research
Foundation.
Machesky, M. L., Holm, T. R., & Shackleford, D. B. “The Pore Water Chemistry of Recent
Peoria Lake Sediments.” Proceedings, 2001 Governor’s Conference on the Management of
the Illinois River System, 89-98.
Machesky, M. L., Holm, T. R., & Shackleford, D. B. 2004. “Concentrations and Potential
Toxicity of Metals and Ammonia in Peoria Lake Sediments and Porewaters.” Research
report RR-103. Illinois Waste Management & Research Center.
Holm, T. R., Kelly, W. R., Wilson, S. D., Roadcap, G. S., Talbott, J. L., & Scott, J. S. 2004.
“Arsenic Geochemistry and Distribution in the Mahomet Aquifer, Illinois.” Research report
RR-107. Illinois Waste Management & Research Center.
Mehnert, E., Hackley, K. C., Larson, T. H., Panno, S. V., Pugin, A., Wehrmann, H. A.,
Holm, T. R., Roadcap, G. S., Wilson, S. D., Warner, K. L. 2004. “The Mahomet Aquifer: Recent
Advances in our Knowledge.” Open-file report 2004-16, Illinois State Geological Survey.
Mehnert, E., Dey, W. S., Hwang, H.-H., Keefer, D. A., Holm, T. R., Johnson, T. M., Beaumont,
W. C., Wander, M. C. F., Sanford, R. M., McDonald, J. M., & Shiffer, S. M. 2005. “Mass Balance
of Nitrogen and Phosphorus in an Agricultural Watershed: The Shallow Groundwater
Component.” Open-file report 2005-3, Illinois State Geological Survey.
Holm, T. R., S. D. Wilson, & W. R. Kelly. 2006. “Temporal Variability of Arsenic in
Groundwater.” Midwest Technology Assistance Center TR06-10.
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Peyton, G. R., Holm, T. R., & Shim, J. 2006. “Development of Low Cost Treatment Options
for Arsenic Removal in Water Treatment Facilities.” Midwest Technology Assistance
Center TR06-03.
Peyton, G. R., Holm, T. R., & Shim, J. 2006. “Demonstration of Low-Cost Arsenic Removal
from a Variety of Illinois Drinking Waters.” Midwest Technology Assistance Center
TR06-11.
Wehrmann, H. A., Kelley, W. R., Holm, T. R., & Carr, K. 2007. “An Assessment of Metals
Distribution and Transport in Groundwater Beneath the Diked Sediment Disposal Area,
DePue Wildlife Management Area, Illinois.” Illinois Waste Management and Research
Center, Research Report 110., 284 p.
Holm, T. R., G. R. Peyton, & S. D. Wilson. 2008. “Field Testing and Modeling of the
Fenton-Filtration Process for Arsenic Removal.” Midwest Technology Assistance Center
TR08-03. 32 pp.
Holm, T. R., S. D. Wilson, & W. R. Kelly. 2009. “Spatial Variability of Arsenic in
Groundwater.” Midwest Technology Assistance Center TR09-01.
Sanford, R. A., Flynn, T., Kelly, W. R., & Holm, T. R. 2009. Fate of Arsenic in the Mahomet
Aquifer; The Influence of Added Sulfate and Nitrate. Midwest Technology Assistance
Center TR08-06.
Kelly, W. R. & T. R. Holm. 2011. “Arsenic in Groundwater in the Tolono Region.” Illinois
State Water Survey, Miscellaneous Publication 196.
Holm, T. R., M. L. Machesky, & J. S. Scott. 2014. “Polycyclic Aromatic Hydrocarbons and
Corn Stover Biochar: Total Concentrations, Sorption, and Bioaccessibility.” Illinois
Sustainable Technology Center. 99 pp.
Holm, T. R., X-L Lu, & D. R. Larson. 2014. “Feasibility of Groundwater Source Heat Pumps
in Mason County and the American Bottoms, Illinois.” Illinois Sustainable Technology
Center. 118 pp.
Lu, X-L, T. R. Holm, & D. R. Larson. 2014. “Initial Feasibility Study of Groundwater Source
Geothermal Heat Pumps in Mason County and the American Bottoms Area, Illinois.”
Proceedings of the 8th Annual ASME International Conference on Energy Sustainability,
paper ESFuelCell2014-6342.
Oral Presentations and Posters
"Heterogeneous Interactions of Arsenic in Aquatic Systems." Symposium on Chemical
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Modeling in Aqueous Systems, American Chemical Society, Miami, FL, October 1978.
"Arsenic Chemistry in the Menominee River, Wisconsin." Chalk River Nuclear Laboratory,
Ontario, Canada, March, 1979.
"Aquifer Thermal Energy Storage: Modeling Short-term Test Cycles." Environmental
Engineering Program, University of Minnesota, Minneapolis, MN, May, 1981.
"Transformation and Sorption of Arsenic Species in Aquatic Sediments." Environmental
Engineering Program, University of Minnesota, Minneapolis, MN, May, 1981.
"Modeling the Chemistry of Aquifer Thermal Energy Storage." University of Wisconsin,
Water Chemistry Program, Madison, WI, January, 1984.
"Modeling the Chemistry of Aquifer Thermal Energy Storage." Portland State University,
Portland, OR, February, 1984.
"Modeling the Chemistry of Aquifer Thermal Energy Storage." Illinois State Water Survey,
Champaign, IL, May, 1984.
"Ground-Water Geochemistry of Aquifer Thermal Energy Storage." Illinois State
Geological Survey, Champaign, IL, September, 1984.
"Oxidation-Reduction Chemistry in a Pristine Aquifer System." Environmental
Engineering Society, University of Minnesota, Minneapolis, January 23, 1986.
"Ground Water Redox Environment." R.S. Kerr Laboratory, U. S. Environmental Protection
Agency, Ground-Water Research Seminar, Oklahoma City, OK, April 8, 1986.
"Critical Discussion of 'Adsorption of Inorganic Arsenic and Organoarsenicals on Hydrous
Oxides." International Symposium on Metal Speciation, Separation, and Recovery,
Chicago, IL, July 29, 1986.
"Geochemical Conditions in a Pristine Sand-and-Gravel Aquifer." Chapman Conference on
Microbial Processes in the Transport, Fate, and In Situ Treatment of Subsurface
Contaminants, American Geophysical Union, Snowbird, UT, October 1, 1986.
"Groundwater Geochemisty of Aquifer thermal Energy Storage." Symposium on the
Evolution
of Brines in the Subsurface, American Chemical Society, Anaheim, CA, October 10, 1986.
"Dissolved Oxygen and Oxidation-Reduction Processes in Ground Water." R. S. Kerr
Laboratory, U. S. Environmental Protection Agency, Ground-Water Research Seminar,
Oklahoma City, OK, March 30, 1987.
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"Metal Complexation by Natural Organic Matter in Ground Waters." Ground Water
Geochemistry Conference, Denver, CO, Feb. 16, 1988.
"Copper Complexation by Natural Organic Matter in Ground Water." Chemical Modeling in
Aqueous Systems 11 Symposium. American Chemical Society, Los Angeles, CA,
September 28, 1988.
"Copper Complexation by Organic Matter in Pristine and Contaminated Ground Water."
Symposium on Modeling Fate and Transport of Organics in Groundwater Systems,
American Geophysical Union, San Francisco, CA, December 7, 1988.
"Competing-Ligand Spectrophotometry Using PAR: A Method for Studying Strong
Complexation of Metal Ions. " Rocky Mountain Conference, Denver, CO, August 2, 1989.
"Lead Complexation by Polyphosphate Water Treatment Products. " Water Quality
Technology Conference, American Water Works Association, Philadelphia, PA, November
14, 1989.
"Polyphosphate Water Treatment Products: Effects on Lead Solubility in Drinking Water
Systems." International Chemical Congress of Pacific Basin Societies, Honolulu, IR,
December
19, 1989.
"Trace Metal Mobility in Aquifer Systems: The Role of Organic Matter in Landfill Leachate
and Ground Water." Ground Water Geochemistry Conference, Kansas City, MO, February
21, 1990.
"Trace Metal Mobility in Aquifer Systems: The Role of Organic Matter in Landfill Leachate
and Ground Water." 16th Environmental Chemistry Workshop, Urbana, IL, October 16,
1990.
"Trace Metal Mobility in Aquifer Systems: The Role of Organic Matter in Landfill Leachate
and Ground Water." Conference on Solid Waste Research in the Midwest, Chicago, IL,
October 26,
1990.
"Sorption of Metals to Kaolinite and Goethite from Landfill Leachate-Contaminated
Ground Water." 17th Midwest Environmental Chemistry Workshop, Champaign, IL,
October, 1991.
"Effects of Polyphosphate Water Treatment Products on Lead Solubility in Domestic
Plumbing Systems." Corrosion Control Seminar, American Water Works Association,
Illinois Section,
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Jacksonville, IL, November 7, 1991.
"Effects of Polyphosphate Water Treatment Products on Lead Solubility in Domestic
Plumbing Systems. " Seminar for Treatment Plant Operators, American Water Works
Association, Illinois Section, Galesburg, IL, May 20, 1992.
"Potential Effects of Polyphosphate Water Treatment Products on Lead Solubility in
Domestic Plumbing Systems." American Water Works Association, Illinois Section,
Arlington Heights,
April 7, 1994.
"Metal Sorption to Kaolinite from Landfill Leachate-Contaminated Groundwater and
Transport through Model Soil." Symposium on Metals in the Environment:
Interdisciplinary Approaches, American Chemical Society, 209th National Meeting,
Anaheim, CA, April 2, 1995.
"A Comparison of Multivariate UV Spectrometry, Ion Chromatography, and Ion-Selective
Electrode Potentiometry for the Determination of Nitrate in Water." Pittsburgh
Conference, March 6, 1996, Chicago, IL.
"Arsenic Removal from Water by Iron-Removal Processes." Water Quality Technology
Conference, November 16, 1996, Boston, MA.
“Effects of Polyphosphates on Lead Solubility in Plumbing Systems.”
Technology Conference, November 2, 1998, San Diego, CA.
Water quality
“An Assessment of Metals Distribution and Transport in Ground Water Beneath a Diked
Sediment Disposal Area.” Poster presented at Environmental Horizons 1999 Conference,
April 21, 1999. Champaign, IL. First author.
“An Examination of Pesticide Occurrence in Large-Diameter Wells: Are High Detection
Rages Related to On-Field Applications?” Poster presented at Environmental Horizons
1999 Conference, April 21, Champaign, IL. Co-author.
“The Effects of Periodic Flooding on a Soil Contaminated with Heavy Metals: Preliminary
Results.” Poster presented at American Geophysical Union Spring Meeting, Boston, MA,
June 1-4, 1999. Co-author.
“Effects of Carbonate, Silica, and Phosphate on Arsenic Sorption to Hydrous Ferric Oxide.”
Poster presented at Environmental Horizons 2000 Conference, March 27, 2000.
Champaign, IL.
“Peoria Lake Sediment Quality.” Poster presented at Illinois Water 2000 conference,
Urbana, November 13-14, 2000 and Environmental Horizons 2001 conference, Urbana,
IL. Co-author.
“Shallow Ground Water Flow and Mass Flux of Nitrogen and Phosphorus in the Big Ditch
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Watershed.” Poster presented at Illinois Water 2000 conference, Urbana, November
13-14, 2000, 46th Midwest Ground Water conference, Madison, WI, and Environmental
Horizons 2001 conference, Urbana, IL. Principal author.
“The Effects of Periodic Flooding on a Soil Contaminated with Heavy Metals.” American
Geophysical Union, San Francisco, December 16, 2000. Co-author.
“Shallow Ground Water Flow and Mass Flux of Nitrogen and Phosphorus in the Big Ditch
Watershed.” Poster presented at 46th Annual Midwest Ground Water Conference,
Madison, WI, October 22-24, 2001 and Environmental Horizons 2002, Urbana, IL.
Principal author.
“Mass Flux of Nitrogen in Shallow Groundwater of an Agricultrual Watershed in Central
Illinois. The Geological Society of America, 35th Annual Meeting of the North-Central
Section, Bloomington, IL, April, 2001. Coauthor.
“Distribution of Arsenic in the Mahomet Aquifer of Central Illinois, U.S.A.” Poster
presented at 35th Annual Meeting of the North-Central Section, Bloomington, IL, April,
2001. Coauthor.
“Natural Attenuation of Nitrate in the Big Ditch Watershed, Illinois.” Poster presented at
Sixth International Symposium on In Situ and On-Site Bioremediation, June 4-7, 2001, San
Diego, CA and Environmental Horizons 2002 conference, Urbana, IL. Coauthor.
"Arsenic Geochemistry & Distribution in the Mahomet Aquifer." Illinois Groundwater
Association Fall Meeting, Urbana, November 13, 2002.
"Arsenic in Illinois Drinking Water." Seminar, Eastern Illinois University Chemistry
Department, January 22, 2003.
"Distribution of Arsenic in the Mahomet Aquifer in Central Illinois." Midwest Focus
Ground Water Conference, Chicago, April 11-12, 2002. Coauthor.
"Mass Balance of Nitrogen in a Tile Drained Agricultural Watershed in Central Illinois."
Midwest Focus Ground Water Conference, Chicago, April 11-12, 2002. Coauthor.
"Sediment Quality and Quantity Issues Related to the Restoration of Backwater Lakes
Along the Illinos River." (Poster). Sediment Quality Assessment Conference, Chicago,
October 16-18, 2002. Coauthor.
"Are We Monitoring in the Right Places for Metals and Radionuclides?" New England
Water Works Association Annual Conference, Hyannis, MA, September 22-25, 2002.
Coauthor.
“Speciation and Distribution of Arsenic in the Mahomet Aquifer, Illinois.” American
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Chemical Society, 226th National Meeting, New York, NY, September 8, 2003.
“Chemical Factors Affecting Arsenic Removal at Water Treatment Plants.” Poster.
American Chemical Society, 226th National Meeting, New York, NY, September 9, 2003.
“Photoactive Removal of As(III) from Water Using Novel Active Material.” Coauthor.
American Chemical Society, 226th National Meeting, New York, NY, September 9, 2003.
“Distribution of Arsenic in Public and Private Wells in Illinois.” Coauthor. 48th Midwest
Ground Water Conference, Kalamazoo, MI, October 2, 2003.
“Mass Balance of Nutrients in a Tile-Drained Agricultural Watershed in Central Illinois.”
48th Midwest Groundwater Conference, Kalamazoo, MI, October 3, 2003.
“A Robust HPLC(IC)-ICPMS Method for 'Routine' Speciation of Arsenic in Drinking and
Ground Waters.” Coauthor. International Ion Chromatography Symposium, San Diego, CA,
September 21, 2003.
“A Robust HPLC(IC)-ICPMS Method for “Routine” Speciation Analysis of Ground Waters
for Arsenic.” Coauthor. 30th Federation of Analytical Chemistry and Spectroscopy
Societies Conference, Ft. Lauderdale, FL, Oct 22, 2003.
“Speciation and Distribution of Arsenic in the Mahomet Aquifer.” Waste Management and
Research Center, March 3, 2004.
“Chemical Characterization of Phosphorus in Stream Sediment.”
2004, Urbana, October 13.
Poster, Illinois Water
“The Impact of Sediments on the Potential Bioavailability of Phosphorus in Illinois
Streams.” Coauthor. Illinois Water 2004, Urbana, October 13.
“The Mahomet Aquifer: Recent Advances in our Knowledge.” Coauthor. Illinois Water
2004, Urbana, October 13.
“Arsenic Distribution and Speciation in the Mahomet and Glasford Aquifers, Illinois.”
Coauthor. Illinois Water 2004, Urbana, October 14.
“Arsenic Speciation and Geochemistry in Central Illinois Groundwater.” 50th Annual
Midwest Groundwater Conference, Urbana, November 3, 2005.
“Development of Low-Cost Options for Arsenic Removal in Water Treatment Facilities.”
National Ground Water Association, San Antonio, TX, April 20, 2005.
“The Effect of Chemical Factors on Arsenic Removal from Ground Water.” Coauthor.
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National Ground Water Association, San Antonio, TX, April 20, 2005.
“Hydrogen Peroxide, a Low-Cost Option for Arsenic Removal from Groundwater.” 2006
Joint Water Conference, Illinois Section American Water Works Association and Illinois
Water Environment Association, Springfield, March 15, 2006.
“The Impacts of Sediments on the Potential Bioavailability of Phosphorus in Illinois
Streams.” Coauthor. Illinois Water 2006, Urbana, October 5, 2006.
“PAHs and Corn Stover Biochar.” American Society of Agronomy National Meeting,
Cincinnati, OH. October 2012.
“Groundwater Source Heat Pumps for Heating and Cooling.” Illinois Water 2012,
September 24, 2012.
“Sorption of Polycyclic Aromatic Hydrocarbons (PAHs) to Biochar and Potential PAH
Bioavailability.” Midwest Biochar Conference, Champaign, IL. June 14, 2013.
“PAHs and Corn Stover Biochar.” North American Biochar Symposium, Amherst, MA. Oct
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“Illinois Groundwater Source Geothermal Resources Relevant to Using Heat Pumps for
Heating and Cooling.” Illinois Governor’s Sustainability Awards Symposium, East Peoria,
Oct 29, 2013.
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