contaminant exposure. Dr. Ballachey brings to the committee her long-term experience as a project leader for population status and sea otter oil spill studies and as a principal investigator on the Nearshore Vertebrate Predator project, an ecosystem approach to examining the recovery of the coastal marine environment in Prince William Sound, Alaska, after the 1989 Exxon Valdez oil spill.

Dr. Joan Braddock is a professor of microbiology at the University of Alaska, Fairbanks. Dr. Braddock earned her Ph.D. in oceanography from the University of Alaska, Fairbanks. Her research includes extensive work on biodegradation of oil in intertidal and subtidal marine sediments following the Exxon Valdez oil spill; evaluation of bioremediation as a treatment technology following the Exxon Valdez oil spill; bioremediation effectiveness in Arctic and subarctic terrestrial ecosystems; natural attentuation of contaminants in cold climates; the effect of sediments on bioavailability of petroleum hydrocarbons for microbial degradation; and microbial degradation of chlorinated and unchlorinated hydrocarbons in groundwater.

Dr. Akhil Datta-Gupta is an associate professor and holder of Robert L. Adams Professorship in Petroleum Engineering at Texas A&M U. in College Station. He has a Ph.D. in petroleum engineering from the University of Texas at Austin. Previously, he worked with BP Exploration at Alaska and also at the BP Research and the Lawrence Berkeley National Laboratory. He has extensive experience in subsurface characterization and fluid flow modeling, both for oil recovery and environmental remediation. His research interests include high-resolution numerical schemes for reservoir simulation; geostatistics and stochastic reservoir characterization; modeling and scale-up of enhanced oil recovery; environmental remediation and contaminant transport. He is a distinguished member of the Society of Petroleum Engineers and currently serves on the NRC’s Polar Research Board.

Dr. Deborah French McCay is a principal at Applied Science Associates, Inc. Dr. French earned her Ph.D. in biological oceanography in 1984 from the University of Rhode Island. Her research interests include quantitative assessments and modeling of aquatic ecosystems to assess environmental impact and damage, especially in regards to response to pollutants, including oil. She is an expert in modeling oil fates and effects, toxicity, exposure to bioaccumulation of pollutants by biota, along with the effects of this contamination. Her models have been used for impact, risk, and natural resource damage assessments, as well as for studies of



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