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Abstract (3)
Book Chapter (2)
Dissertation/Thesis (7)
Journal Article (16)
Paper (1)
Presentation (21)
Proceedings (4)
Reference Type Citation Progress Report Year Document Sources
Abstract Barth GR, Illangasekare TH. An evaluation of intermediate scale tracer taste in heterogeneous porous media: sensitive to NAPL entrapment. EOS, Transactions, American Geophysical Union 1998;79(45):F251. R825549C063 (Final)
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Abstract Saba T, Illangasekare TH. Effect of aqueous phase flow dimensionality on surfactant enhanced dissolution from entrapped nonaqueous phase liquid contaminants. EOS, Transactions, American Geophysical Union 1998;79(45):F331. R825549C063 (Final)
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Abstract Saba T, Illangasekare TH. Upscaling of mass transfer from zones with entrapped nonaqueous phase chemicals. EOS, Transactions, American Geophysical Union 1998;79(45):F390. R825549C063 (Final)
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Book Chapter Illangasekare TH. Flow and entrapment of nonaqueous phase liquids in heterogeneous soil formations. In: Selim HM, Ma L, eds. Physical Nonequilibrium in Soils: Modeling and Application. Boca Raton, FL: CRC Press, 1998, Chapter 16, pp. 417-435. R825549C063 (Final)
Book Chapter Illangasekare TH, Reible D. Pump-and-treat for remediation and plume containment:applications, limitations, and relevant processes. In: Kaluarachichi JJ, ed. Groundwater Contamination by Organic Pollutants: Analysis and Remediation, ASCE Manuals and Reports on Engineering Practice Series No. 100. Reston, VA: American Society of Civil Engineers, 2000, pp. 79-119. R825549C063 (Final)
Dissertation/Thesis Barth GR. Intermediate-scale tracer tests in heterogeneous porous media: investigation of density, predictability and characterization of NAPL entrapment. Ph.D. Dissertation. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1999. R825549C063 (Final)
Dissertation/Thesis Ewing JE. Effects of dimensionality and heterogeneity on surfactant-enhanced solubilization of nonaqueous phase liquids in porous media, M.S. Thesis. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1996. R825549C063 (Final)
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Dissertation/Thesis McEachern C. Effect of bacterial growth by means of jet fuel constituents on the hydraulic conductivity and dispersivity of porous media in one-and two-dimensional systems. M.S. Thesis. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1998. R825549C063 (Final)
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Dissertation/Thesis Okeson SJ. A study of the dissolution of multicomponent nonaqueous phase liquids in a two-dimensional flow field and model development. M.S. Thesis. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1995. R825549C063 (Final)
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Dissertation/Thesis Pytte KO. Dimensionality and heterogeneous effects on enhanced LNAPL recovery using hot waterflooding. M.S. Thesis. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1997. R825549C063 (Final)
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Dissertation/Thesis Saba TA. Upscaling of mass transfer from entrapped NAPLs under natural and enhanced conditions. Ph.D. Dissertation. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1999. R825549C063 (Final)
Dissertation/Thesis Walser GS. Vadose zone infiltration, mobilization and retention of nonaqueous phase liquids. Ph.D. Dissertation. Department of Civil Engineering, University of Colorado at Boulder, Boulder, CO, 1995. R825549C063 (Final)
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Journal Article Barth GR, Illangasekare TH, Hill MC, Rajaram H. A new tracer-density criterion for heterogeneous porous media. Water Resources Research 2001;37(1):21-31. R825549C063 (Final)
Journal Article Barth GR, Hill MC, Illangasekare TH, Rajaram H. Predictive modeling of flow and transport in a two-dimensional intermediate-scale, heterogeneous porous media. Water Resources Research 2001;37(10):2503-2512. R825549C063 (Final)
Journal Article Barth GR, Illangasekare TH, Rajaram H. The effect of entrapped nonaqueous phase liquids on tracer transport in heterogeneous porous media: laboratory experiments at the intermediate scale. Journal of Contaminant Hydrology 2003;67(1-4):247-268. R825549C063 (Final)
Journal Article Bielefeldt AR, Illangasekare TH, Uttecht M, LaPlante R. Biodegradation of propylene glycol and associated hydrodynamic effects in sand. Water Research 2002;36(7):1707-1714. R825549C063 (Final)
Journal Article Bielefeldt AR, McEachern C, Illangasekare T. Hydrodynamic changes in sand due to biogrowth on naphthalene and decane. Journal of Environmental Engineering 2002;128(1):51-59. R825549C063 (Final)
Journal Article Dai DP, Barranco Jr. FT, Illangasekare TH. Partitioning and interfacial tracers for differentiating NAPL entrapment configuration: column-scale investigation. Environmental Science & Technology 2001;35(24):4894-4899. R825549C063 (Final)
Journal Article Held RJ, Illangasekare TH. Fingering of dense nonaqueous phase liquids in porous media. 1. Experimental investigation. Water Resources Research 1995;31(5):1213-1222. R825549C063 (Final)
Journal Article Held RJ, Illangasekare TH. Fingering of dense nonaqueous phase liquids in porous media. 2. Analysis and classification. Water Resources Research 1995;31(5):1223-1231. R825549C063 (Final)
Journal Article Illangasekare TH, Armbruster III. EJ, Yates DN. Non-aqueous-phase fluids in heterogeneous aquifers—Experimental study. Journal of Environmental Engineering 1995;121(8):571-579. R825549C063 (Final)
Journal Article Illangasekare TH, Ramsey Jr. JL, Jensen KH, Butts MB. Experimental study of movement and distribution of dense organic contaminants in heterogeneous aquifers. Journal of Contaminant Hydrology 1995;20(1-2):1-25. R825549C063 (Final)
Journal Article Kuiper LK, Illangasekare TH. Numerical simulation of NAPL flow in the subsurface. Computational Geosciences 1998;2(3):171-189. R825549C063 (Final)
Journal Article Ruan H, Illangasekare TH. Estimation of relative hydraulic conductivity of sandy soils based on a sheet flow model. Journal of Hydrology 1999;219(1-2):83-93. R825549C063 (Final)
Journal Article Saba T, Illangaekare TH. Effect of groundwater flow dimensionality on mass transfer from entrapped nonaqueous phase liquid contaminants. Water Resources Research 2000;36(4):971-979. R825549C063 (Final)
Journal Article Saba T, Illangasekare TH, Ewing J. Investigation of surfactant-enhanced dissolution of entrapped nonaqueous phase liquid chemicals in a two-dimensional groundwater flow field. Journal of Contaminant Hydrology 2001;51(1-2):63-82. R825549C063 (Final)
Journal Article Walser GS, Illangasekare TH, Corey AT. Retention of liquid contaminants in layered soils. Journal of Contaminant Hydrology 1999;39(1-2):91-108. R825549C063 (Final)
Journal Article Wildenschild D, Jensen KH, Hollenbeck KJ, Illangasekare TH, Znidarcic D, Sonnenborg T, Butts MB. A two-stage procedure for determining unsaturated hydraulic characteristics using a syringe pump and outflow observations. Soil Science Society of America Journal 1997;61(2):347-359. R825549C063 (Final)
Paper Dawson HE, Illangasekare TH. Influence of geologic heterogeneity and chemical complexity on the transport and distribution of nonaqueous phase liquid waste. EPA peer reviewed publication, US EPA Region 8, 1999, 45 pp. R825549C063 (Final)
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Presentation Barranco F, Illangasekare TH. Entrapment characterization of NAPLs in the subsurface using partitioning tracers: a laboratory evaluation. Presented at the 1999 Conference on Hazardous Waste Research, St. Louis, MO, May 24-27, 1999. R825549C063 (Final)
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Presentation Barth GR, Illangasekare TH, Hill MC, Rajaram H. An evaluation of intermediate-scale tracer tests in heterogeneous porous media. sensitivity to NAPL entrapment. Presented at the American Geophysical Union Fall Meeting in San Francisco, CA, December 1998. R825549C063 (Final)
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Presentation Barth GR, Illangasekare TH, Hill M, Rajaram H. Characterization of NAPL contaminated sites using tracer techniques. Presented at the 1998 Conference on Hazardous Waste Research, Snowbird, UT, May 18-21, 1998. R825549C063 (Final)
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Presentation Barth GR, Hill MC, Illangasekare TH, Rajaram H. Predictive modeling of two-dimensional intermediate-scale flow and transport experiments in heterogeneous porous media. Presented at ModelCARE99: International Conference on Calibration and Reliability in Groundwater Modeling, Coping with Uncertainty, Zurich, Switzerland, September 20-23, 1999. R825549C063 (Final)
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Presentation Barth G, Illangasekare TH, Hill M. Discrepancies in hydraulic conductivity obtained from laboratory evaluation and regression modeling of intermediate scale flow and transport experiments. Presented at the AGU Hydrology Days Conference, Fort Collins, CO, March 30-April 2, 1998. R825549C063 (Final)
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Presentation Bielefeldt AR, McEachern C, Illangasekare TH. Upscaling flow and transport of jet fuels in near surface environments under conditions of bioactivity. Presented at the 12th Annual Conference on Hazardous Waste Research, Kansas City, MO, May 19-21, 1997. R825549C063 (Final)
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Presentation Bielefeldt AR, Illangasekare TH, McEachern C. Effect of biofilm growth on the fate of contaminants, in the subsurface. Presented at the 1998 Conference on Hazardous Waste Research, Snow Bird, UT, May 18-21, 1998. R825549C063 (Final)
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Presentation Bielefeldt AR, Illangasekare TH, McEachern C. Impact of biofilm growth in porous media on the fate of contaminants in the subsurface: lab studies and modeling. Presented at the 71st Annual Water Environment Federation Conference and Exposition, Orlando, FL, October 4-8, 1998. R825549C063 (Final)
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Presentation Bielefeldt AR, Illangasekare TH, Grant M. Effect of biofilm growth on de-icers on the hydrodynamics in the subsurface. Presented at the Conference on Hazardous Waste Research. St. Louis, MO, May 18-21, 1999 (Karen Moorehouse Best Paper Award). R825549C063 (Final)
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Presentation Bielefeldt AR, Illangasekare TH, Grant M. Biodegradation of de-icing compounds in columns simulating a range of natural conditions. Presented at the Conference on Hazardous Waste Research, St. Louis, MO, May 24-27, 1999. R825549C063 (Final)
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Presentation Bielefeldt AR, Illangasekare TH, LaPlante R. The impact of biodegradation of de-icing chemicals in sand columns on the conductivity and dispersivity of the porous media. Presented at the 2000 Conference on Hazardous Waste Research. Denver, CO, May 23-25, 2000. R825549C063 (Final)
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Presentation Illangasekare TH, Saba T. Up-scaling of mass transfer from zones with entrapped nonaqueous phase chemicals. Presented at the American Geophysical Union Fall Meeting in San Francisco, CA, December 6-11, 1998. R825549C063 (Final)
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Presentation Illangasekare TH, Rajaram H. Use of sparse data for characterization of aquifers to model water flow and chemical transport:intermediate scale testing for theory validation. Presented at the 1998 Conference on Hazardous Waste Research, Snowbird, UT, May 18-21, 1998. R825549C063 (Final)
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Presentation Illangasekare TH. Intermediate-scale testing for upscaling of NAPL behavior in heterogeneous aquifers. Presented at the European Geophysical Society Annual Meeting, April 19-23, 1999 (invited). R825549C063 (Final)
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Presentation Illangasekare TH, Barth G, Hill M, Rajararn H. Tracer sensitivity to entrapped nonaqueous phase liquids: intermediate scale experiments in heterogeneous porous media. Presented at the 1999 Conference on Hazardous Waste Research, St. Louis, MO, May 24-27, 1999. R825549C063 (Final)
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Presentation Illangasekare TH, Bielefeldt AR, McEachern CA. Up-scaling of flow and transport parameters in the subsurface as affected by bacterial growth on jet fuel constituents. Presented at the Sixth Annual International Petroleum Environmental Conference, Houston, TX, November 16-18, 1999. R825549C063 (Final)
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Presentation McEachern CA, Bielefeldt A, Illangasekare TH. Upscaling of flow and transport of jet fuels and deicing agents in near surface environments under conditions of bioactivity. Presented at the AGU Hydrology Days Conference, Fort Collins, CO, March 30–April 2, 1998. R825549C063 (Final)
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Presentation Mehl S, Hill MC, Illangasekare TH. Predictability of hydraulic conductivity at the intermediate scale using inverse modeling techniques. Presented at the 1998 Conference on Hazardous Waste Research, Snowbird, UT, May 18-21, 1998. R825549C063 (Final)
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Presentation Saba T, Illangasekare TH. Effect of aqueous phase flow dimensionality on surfactant-enhanced dissolution from non-aqueous phase liquid contaminants at the spill-site scale. Presented at the American Geophysical Union Fall Meeting in San Francisco, CA, December 6-11, 1998. R825549C063 (Final)
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Presentation Saba T, Illangasekare TH. Flow dimensionality effects on parameters of mass transfer from entrapped nonaqueous phase liquids. Presented at the AGU Hydrology Days Conference, Fort Collins, CO, March 30–April 2, 1998 (Ph.D. Best Poster Award). R825549C063 (Final)
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Presentation Saba T, Illangasekare TH. Surfactant-enhanced dissolution of non-aqueous phase waste chemicals: effect of flow dimensionality. Presented at the 1999 Conference on Hazardous Waste Research, St. Louis, MO, May 24-27, 1999. R825549C063 (Final)
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Proceedings Barth GR, Hill MC, Illangasekare TH, Rajaram H. Predictive modelling of flow in a two-dimensional intermediate-scale, heterogeneous porous media. In: Stauffer F, Kinzelbach W, Kovar K, Hoen E, eds. Calibration and Reliability in Groundwater Modelling: Coping with Uncertainty: Proceedings of the ModelCARE '99 Conference, Zurich, Switzerland, September 1999, IAHS Publication No. 265. Wallingford, Oxfordshire, UK: IAHS, 2000. pp. 265-271. R825549C063 (Final)
Proceedings Illangasekare TH, Ewing JE, Pytte KO. Process upscaling of nonaqueous phase liquid behavior in heterogenous aquifers. In: Reddi LN, ed. Nonaqueous Phase Liquids (NAPLs) in the Subsurface Environment: Assessment and Remediation: Proceedings of A Specialty Conference held in Conjunction with the ASCE National Convention, November 10-14, 1996, Washington, DC. New York, NY: ASCE, 1996, pp. 25-45. R825549C063 (Final)
Proceedings Ruan H, Illangasekare TH. A model of the relative hydraulic conductivity of unsaturated sandy soils. In: van Genuchten MT, Leij FJ, Wu L, eds. Characterization and Measurement of the Hydraulic Properties of Unsaturated Porous Media: Proceedings of the International Workshop on Characterization and Measurement of the Hydraulic Properties of Unsaturated Porous Media, Riverside, California, October 22-24, 1997. Riverside, CA: University of California, Riverside, 1999, pp. 43-51. R825549C063 (Final)
Proceedings Willson CS, Weaver JW, Illangasekare TH, Charbeneau RJ. Framework for a screening model for DNAPL contamination of porous media. In: Reddi LN, ed. Nonaqueous Phase Liquids (NAPLs) in the Subsurface Environment: Assessment and Remediation: Proceedings of A Specialty Conference held in Conjunction with the ASCE National Convention, November 10-14, 1996, Washington, DC. New York, NY: ASCE, 1996, pp. 407-418. R825549C063 (Final)

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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