RAVI JAIN, Ph.D., is Dean of the School of Engineering and Professor of Engineering at the University of the Pacific. He has served on numerous National Task Forces and Advisory Councils for the Department of Defense, NSF, Navy, Army, EPA and NAS. He is a fellow ASCE and Diplomate American Academy of Environmental Engineers. Along with his prior appointments, Dr. Jain has published ten books and over 100 journal articles, book chapters, and technical reports. He is Editor-in-Chief of the international journal ENVIRONMENTAL ENGINEERING AND POLICY. L.V. URBAN is Director of the Water Resources Center and Professor of Civil Engineering at Texas Tech University. He consults to industry on water resources, environmental impact analysis, and environmental engineering. He is also an active member of the American Society of Civil Engineers and a registered professional engineer in Texas. GARY S. STACEY was formerly a senior economist at the Battelle-Europe Centres de Recherche in Geneva, Switzerland, and has more than 30 years' experience in economic impact assessment. He has helped develop strategies for many U.S. government agencies, including the EPA and the Department of Energy. Dr. Stacey is the author or co-author of more than a dozen books and scores of professional articles and client reports in these fields. HAROLD BALBACH is a senior biologist at the U.S. Army Engineer Research and Development Center, Champaign, IL. He is a Fellow of the Society of American Military Engineers, and serves on their Board of Directors in addition to representing the Military Installations Land Management Division on the Board of Directors of the American Society of Agronomy. He has co-authored or edited six books, scores of agency reports, and numerous NEPA documents. M. DIANA WEBB is Group Leader of the Ecology Group, Los Alamos National Laboratory, New Mexico, operated by the University of California. Ms. Webb has over 30 years' experience in environmental compliance issues with the Laboratory, Department of Energy, Bureau of Land Management, Army Corps of Engineers, and private consulting firms. She is the recipient of numerous awards and honors, including a Secretarial NEPA Quality Award.