* Investigation of contaminant transport in soil and groundwater systems.
* Understanding the processes that influence transport of contaminants in porous media.
* Impact of immiscible liquid sources on chemical transport in soil and groundwater systems.
* Innovative technologies for the remediation of organic contaminants in the subsurface.
* Enhanced-solubilization agents to improve the remediation of organic pollutants in groundwater.
* Laboratory, field, and theoretical investigations of contaminant transport in porous media.
* Methods to characterize subsurface heterogeneity and subsurface contamination.