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Fred D. Tillman
Research Hydrologist

Contact Information

U.S. Geological Survey
520 N. Park Avenue, Suite 221
Tucson, Arizona 85719
Phone: (520) 670-6671 ext 223
Fax: (520) 670-5592
Email: ftillman@usgs.gov

Education

• PhD in Environmental Engineering, University of Virginia Department of Civil Engineering, 2003.
• Masters of Environmental Engineering, University of Virginia Department of Civil Engineering, 1998.
• Bachelors of Science in Electrical Engineering, Florida State University, 1990.

Areas of Expertise

• Analysis and display of ground-water conditions
• Organic contaminant transport in ground water
• Soil vapor intrusion of volatile organic compounds

Current Projects

• Development and Demonstration of a Method for Assessment and Mapping of Ground-Water Availability
• Technical assistance to the Aeronautical Systems Center (ASC) of the U.S. Air Force for their oversight responsibilities for remediation of organic contamination of ground water in the Tucson International Airport Area (TIAA) Superfund Site

Selected Publications

Tillman, F.D., Choi, J.-W., Katchmark, W., Smith, J. A., and Wood, H.G.III, 2001, Unsaturated-zone airflow: Implications for natural remediation of ground water by contaminant transport through the subsurface, in Smith, J.A., and Burns, S.E., eds., Physicochemical Groundwater Remediation: New York, Kluwer Academic/Plenum Publishing, p. 307-340.

Olson, M.S., Tillman, F.D., Choi, J.W., and Smith, J.A., 2001, Comparison of three techniques to measure unsaturated-zone air permeability at Picatinny Arsenal, New Jersey: Journal of Contaminant Hydrology, v. 53, no. 1-2, p. 1-19.

Choi, J.W., Tillman, F.D., and Smith, J.A, 2002, Unsaturated-zone airflow at Picatinny Arsenal, New Jersey and its effect on the natural remediation of trichloroethylene-contaminated ground water: Environmental Science and Technology, v. 36, no. 14, p. 3157-3164.

Tillman, F.D., Choi, J.W. and Smith, J.A., 2003, A comparison of direct measurement and model simulation of total flux of volatile organic compounds from the subsurface to the atmosphere under natural field conditions: Water Resources Research, v. 39, no. 10, p. 1284-1294.

Tillman, F.D., and Smith, J.A., 2004, Design and laboratory testing of a chamber device to measure total flux of volatile organic compounds from the unsaturated zone under natural conditions: Journal of Contaminant Hydrology, v. 75, no. 1-2, p. 71-94.

Tillman, F.D., Bartelt-Hunt, S.L., Smith, J.A., and Alther, G.R., 2004, Evaluation of an organoclay, an organoclay-anthracite blend, clinoptilolite, and hydroxy-apatite as sorbents for heavy metal removal from water: Bulletin of Environmental Contamination and Toxicology, v. 72, no. 6, p. 1134-1141.

Tillman, F.D., Bartelt-Hunt, S.L., Craver, V.A, Smith, J.A., and Alther, G.R., 2005, Relative metal ion sorption on natural and engineered sorbents: Batch and column studies: Environmental Engineering Science, v. 22. no. 3, p. 400-410.

Tillman, F.D. and Smith, J.A., 2005, Site characteristics controlling airflow in the shallow unsaturated zone at Picatinny Arsenal, NJ: Environmental Engineering Science, v. 22, no. 1, p. 25-37.

Tillman, F.D. and Smith, J.A., 2005, Vapor transport in the unsaturated zone, in Lehr, J.H., and Keely, J., eds., Water Encyclopedia: Ground Water: New Jersey, John Wiley & Sons, p. 543-548.

Weaver, J.W. and Tillman, F.D., 2005, Uncertainty and the Johnson-Ettinger model for vapor intrusion calculations: U.S. Environmental Protection Agency Publication No. EPA/600/R-05/110, 43 p.

Tillman, F.D. and Weaver, J.W., 2005, Review of recent research on vapor intrusion: U.S. Environmental Protection Agency Publication No. EPA/600/R-05/106, 40 p.

Tillman, F.D. and Weaver, J.W., 2006, Uncertainty from synergistic effects of multiple parameters in the Johnson and Ettinger (1991) vapor intrusion model: Atmospheric Environment, v. 40, no. 22, p. 4098-4112.

Tillman, F.D. and Weaver, J.W., 2007, Temporal moisture content variability beneath and external to a building and the potential effects on vapor intrusion risk assessment: Science of the Total Environment, v. 379, no. 1, p. 1-15.

Tillman, F.D. and Weaver, J.W., 2007, Parameter sets for upper and lower bounds on soil-to-indoor-air contaminant attenuation predicted by the Johnson and Ettinger vapor intrusion model: Atmospheric Environment, v. 41, no. 27, p. 5797-5806.