Solutions for Private Well Contamination in Maryland
Chemical Company

Principal investigator of a study for Maryland Department of the Environment of water treatment and alternative water supply options for 19 private wells contaminated by MTBE and TBA. Developed cost estimates for various options and presented recommendations for addressing each of the 19 wells.

Coal Tar and Arsenic Feasibility Study

Provided technical support on a feasibility study to evaluate remedial options for coal tar and arsenic contamination that is discharging to a river.

Biotreatability Study
Wood Tar Superfund Site

Designed and supervised bench‑scale treatability studies of slurry-phase bioremediation of wood tar-contaminated soils in Michigan. On the basis of the study results and site investigation, recommended biosparging, and provided engineering recommendations relative to pilot testing and full‑scale implementation of bioremediation of soil and groundwater contaminants.

Biotreatability Study
Railroad Superfund Site

Managed a bench-scale biotreatability study testing the ability of surfactants, phytoremediation, Fenton’s reagent, compost, and bacterial inoculum to aid the remediation of weathered hydrocarbons at a site in Massachusetts.

Evaluation of Remedial Options
Wood Tar National Priorities
List Site

Interpreted bioremediation treatability data for forced aeration biopile treatment for this wood tar site in Michigan. Evaluated various in situ and ex situ remediation alternatives for site soil and groundwater and prepared planning level cost estimates.

Biotreatability Study
Wood-Treating Superfund Site

Evaluated ex situ and in situ bioremediation options for polycyclic aromatic hydrocarbon soil contamination in South Carolina. Designed and supervised treatability studies to determine the feasibility of land treatment.

Seven State Study of Fuel Oxygenates in Groundwater
and Public Water Supply Wells

Chemical Company

Principal investigator of a seven state study of MTBE, TBA, and ethanol in public water supply wells and nearby gasoline release sites. The study included identifying public wells most likely to be impacted and significant sites from state databases, and groundwater sampling and analysis to develop new data. This is believed to be the first study to investigate ethanol and TBA in public water supply wells.

Study of Causes of MTBE Well Contamination in New Hampshire
Chemical Company

Principal investigator of a study of New Hampshire Department of Environmental Services data relative to MTBE and other gasoline constituents detected in public water systems and potential sources of gasoline in Source Water Protection Areas such as leaking underground storage tanks, spills, junkyards, and watercraft traffic.

Multi-Disciplinary Evaluation of MTBE Impacts
Chemical Company

Reviewed literature on MTBE’s air benefits, water impacts, health effects, remediation technologies, and alternatives (such as ethanol) and submitted written comments on the Northeast States for Coordinated Air Use Management Draft White Papers on MTBE.

Analysis of Gasoline Transport and Remediation
USEPA R.S. Kerr Environmental Research Laboratory

For Ph.D. research, conducted soil core experiments of soil and groundwater remediation by soil vapor extraction, bioventing, and air sparging. Research included laboratory analysis of vapor samples and computer modeling of gasoline vapor fate and transport. Demonstrated that soil vapor extraction is limited by the diffusive release of contaminants from product and that beyond a certain point, increasing the SVE air flow rate does not improve contaminant removal. Also, this was one of the earliest studies to demonstrate significant biodegradation of vapor-phase petroleum hydrocarbons in clean soil.