tle, Washington. Mr. Liegel received a J.D from Cornell Law School. His work focuses on environmental and land use issues for private and public clients. He participated in the development of state sediment standards and dredged material disposal guidelines.

PERRY L.McCARTY is a professor of environmental engineering and science at Stanford University and director of the Western Region Hazardous Substance Research Center. He earned his Sc.D from Massachusetts Institute of Technology. Dr. McCarty’s research is focused on the control of hazardous substances in treatment systems and groundwater and biological processes for water quality control.

JOHN L.O’DONOGHUE is director of Health and Environment Laboratories at Eastman Kodak Company. He earned his V.M.D. and Ph.D. degrees from the University of Pennsylvania. He is a Diplomate of the American Board of Toxicology. His main research interest is neurotoxicology, including clinical and pathology methods development and the effect of solvents.

JAMES J.OPALUCH is a professor of environment and natural resource economics at the University of Rhode Island. He received his Ph.D. in Agricultural and Resource Economics from the University of California at Berkeley. Dr. Opaluch’s research interests include uncertainty analysis and assessment of natural resource damages from spills of oil and hazardous substances, groundwater quality, wetlands and facility siting.

DANNY D.REIBLE is the Chevron Professor of Chemical Engineering and Director, Hazardous Substance Research Center at the Louisiana State University in Baton Rouge. Dr. Reible received a Ph.D. in chemical engineering from the California Institute of Technology. His research interests include remediation technologies such as capping of contaminated sediments and the transport, behavior, and fate of contaminants in sediments.