Ecosystems Research Division

Biographical Information

Name: Caroline Tebes Stevens
Title: Environmental Engineer

Contact Information:
phone: 706-355-8218
fax: 706-355-8202
e-mail: Stevens.Caroline@epa.gov

Education:
Ph.D., Civil Engineering, University of Illinois at Urbana-Champaign, 1998
M.S., Civil Engineering, University of Illinois at Urbana-Champaign, 1995
B.A., Geology and Mathematics, Northwestern University, 1992

Expertise/Research Interests:
Reactive transport modeling, fate and transport of groundwater contaminants, modeling of coupled biogeochemical processes, sensitivity analysis, parameter estimation, numerical modeling

Professional Activities:

• American Geophysical Union
• American Society of Civil Engineers

Select Publications:

Tebes-Stevens, C.L., and W.J. Jones, Estimation of microbial reductive transformation rates for chlorinated benzenes and phenols using a QSAR approach, accepted for publication in Environmental Toxicology and Chemistry, 23(7), 1600-1609, 2004.

Mazur, C.S., W.J. Jones, and C. Tebes-Stevens, H₂ consumption during the microbial reductive dehalogenation of chlorinated phenols and tetrachloroethene, Biodegradation, 14, 285-295, 2003.

Tebes-Stevens, C.L., F. Espinoza, and A.J. Valocchi, Evaluating the sensitivity of a subsurface multicomponent reactive transport model with respect to transport and reaction parameters, Journal of Contaminant Hydrology, 52, 3-27, 2001.

Simon, R., D. Colon, C.L. Tebes-Stevens, and E.J. Weber, Effect of redox zonation on the reductive transformation of p-cyanonitrobenzene in a laboratory sediment column, Environmental Science and Technology, 34(17), 3617-3622, 2000.

Tebes-Stevens, C.L. and A.J. Valocchi, Calculation of reaction parameter sensitivity coefficients in multicomponent subsurface transport models, Advances in Water Resources, 23, 591-611, 2000.

Tebes-Stevens, C.L., A.J. Valocchi, J.M. VanBriesen, and B.E. Rittmann, Multicomponent transport with coupled geochemical and microbiological reactions: Model description and example simulations, Journal of Hydrology, 209, 8-26, 1998.

Williams, G.P., D. Tomasko, and C.L. Tebes, Parameter importance for an analytical model of LNAPL transport in the vadose zone, In R.J. Charbeneau (Ed.) Groundwater Management: Proceedings of the International Symposium Sponsored by the Water Resources Engineering Division, American Society of Civil Engineers, San Antonio, Texas, August 14-16, 1995, pp. 343-348, American Society of Civil Engineers, New York, 1995.

Current Projects:

• Development of a screening-level model for the environmental fate of organic chemical stressors
• Application of a reactive transport model to analyze the fate of nitrogen species in a small agricultural watershed
• Development of process-based models for the quantitative prediction of microbial transformation rates of organic chemicals in the environment
• Member of the Subsurface Reactive Transport Modeling Workgroup which exists under the auspices of the Federal Interagency Steering Committee on Multimedia Environmental Models