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RAC team members are skilled and experienced in a wide variety of disciplines, including monitoring data evaluation, process engineering, environmental transport modeling, database development and use, geographic information systems integrated with databases and assessment models, radiation biology, and interactive public involvement. Among the 14 scientific members of the team, there are six Ph.Ds, seven M.S. degrees, and one B.S. degree.
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John E. Till, Ph.D.,
President, Risk Assessment Corporation
John has more than 30 years experience and is a leading international authority in the field of environmental risk assessment. He is the founder and driving force behind RAC. His passion and enthusiasm are evident in the qualifications of the scientists that he has attracted to his team and in the results RAC has produced. John expects excellence from himself and his teamencouraging us to take risks and “think outside the box.” In addition to being a prominent researcher, he is also a retired Rear Admiral in the U.S. Naval Reserve and a farmer of corn, soybeans, and long leaf pine.
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Helen A Grogan, Ph.D.
President, Cascade Scientific, Inc.
Helen has more than 20 years of experience in radioecology, dose reconstruction, and the assessment of radioactive and non-radioactive hazardous wastes. One of her interests is the validation of computer models developed to predict the fate and transport of radionuclides in the environment, and she recently completed a chapter on this topic to be published in a textbook. As a principal researcher for RAC, she manages the technical aspects of our group’s projects. Her expertise, scientific acumen, and level-headedness ensure that we maintain our position as a leading authority in risk analysis.
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Jill Weber Aanenson, M.S.
President, Scientific Consulting, Inc.
Jill has almost 15 years of experience in environmental risk assessment, with an emphasis on contaminant transport and modeling, uncertainty estimation and statistics, evaluation of environmental monitoring data, environmental database development, and exposure and risk assessment. She combines impressive technical skills with an efficient, no-nonsense approach and “can-do” attitude.
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Lesley Hay Wilson, Ph.D.
Principal, Sage Risk Solutions, LLC
Lesley has nearly 20 years of experience in environmental risk management, including corrective action, risk evaluation, environmental project management and compliance. Her research interests include structured decision making, exposure assessment, risk analysis, and the use of databases and geographic information systems in environmental risk management. Lesley’s attention to detail and analytical, ordered mind challenge us to do our best work and seek answers to the difficult questions.
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Bruce L. Jacobs, Ph.D., P.E.
Vice President, HydroAnalysis, Inc.
Bruce has more than 20 years of experience as an environmental engineer, working on a wide variety of problems in water resources, groundwater hydrology and contaminant transport, storm water management, and surface water quality. He specializes in computer modeling and data analysis. Bruce particularly enjoys creating environmental software and is the author of several computer codes, including the EnviroInsite groundwater data visualization software (www.enviroinsite.com).
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George G. Killough, M.A.
President, Hendecagon Corporation
George has over 40 years experience in mathematics and computer science. He specializes in developing innovative applications of mathematical and statistical methods to the environmental assessment of chemical and radiological pollutants. Developing and testing his models against real data is a key focus of his work that has contributed to a detailed understanding of the environmental behavior of such pollutants. We consider his skills second to none.
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Kathleen R. Meyer, Ph.D.
President, Keystone Scientific, Inc.
Kathleen has 30 years of experience in the fields of biological research, environmental data review, radiation protection, and public communication. She has been involved in a wide range of activities dealing with risk evaluation for sites containing radioactive and hazardous chemicals, such as the Savannah River Site, Fernald, Rocky Flats, and Idaho National Laboratory. Kathleen is instrumental in developing exposure scenarios and screening methodologies for our projects. She is an inveterate educator and relishes sharing her knowledge and research activities with community and scientific groups.
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H. Justin Mohler, M.S.
President, Bridger Scientific, Inc.
Justin has more than 10 years experience in various aspects of environmental health physics, including sampling and measurement, tabular and spatial data interpretation, transport modeling, exposure and risk assessment, communication and presentation of technical information, and database design and management. Justin’s understanding of environmental transport and risk assessment is a key asset for projects that require database design and development. That’s why he’s known as the “wizard.”
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S. Shawn Mohler, M.S.
Independent Consultant
Shawn has a background in environmental health, with experience in occupational exposures to airborne chemicals and exposure analysis. She has an innate ability to take complex concepts and technical details and distill them into concise, effective graphics that enhance the usability of our reports and presentations. In addition, she helps keep us organized and on schedule by assisting with project-management duties.
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James R. Rocco
Principal, Sage Risk Solutions LLC
Jim has more than 30 years of experience in environmental risk management and risk-based decision-making, including corrective action, property transfer and redevelopment, structured decision making processes, environmental compliance, legislative and regulatory technical support, and emergency response. He specializes in environmental risk management including the development and use of geographic information systems and databases for data visualization and evaluation. Jim’s extensive knowledge, field experience, and dry sense of humor make him an invaluable resource.
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Arthur S. Rood, M.S.
President, K-Spar, Inc.
Arthur Rood has more than 20 years of experience in multimedia assessment of contaminants in the environment. His broad range of experience includes data collection and analysis, instrumentation, multimedia contaminant transport modeling, and dose and risk assessment. Art enjoys developing state-of-the-art models — whether atmospheric, groundwater, terrestrial, or aquatic — to address specific issues with an appropriate level of complexity. Art has taught Environmental Modeling for the University of Idaho and is co-author of the terrestrial transport chapter in a new textbook Radiological Assessment and Environmental Analysis published by Oxford University Press.
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Peter Shanahan, Ph.D., P.E.
President, HydroAnalysis, Inc.
Pete is a civil engineer experienced in water quality, hydrology, hydraulics, and water resources. He specializes in the application of computer modeling and mathematical analysis to these disciplines. He has more than 25 years of experience in environmental engineering and consulting and is a registered Professional Engineer in Massachusetts and other states. Pete is also a senior lecturer at the Massachusetts Institute of Technology, where he teaches undergraduate and graduate courses.
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Elisabeth A. Stetar, M.S.
Independent Consultant
Lisa is a certified health physicist with over 20 years experience in environmental transport, environmental monitoring and regulatory compliance for radioactive materials. She assists the team in data analysis, exposure scenario development, and data management. One of Lisa’s greatest assets is her general knowledge and eagerness to tackle almost any professional challenge. This character trait is critical in the work RAC undertakes because of the wide scope of science that is involved.
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Paul G. Voillequé, M.S.
President, MJP Risk Assessment, Inc.
Paul has a wealth of experience in health physics that stretches over more than 40 years. When we need details related to radiation dosimetry and source terms, Paul has the answer. His interests in the field of radiation protection range from personnel protection and internal dosimetry to the behavior of radionuclides within nuclear facilities and in the environment around them. Paul specializes in calculating historical emissions from facilities, a process referred to as source term reconstruction. For the past 15 years, Paul has been actively involved in estimating radiation doses to persons exposed following the Chernobyl accident as part of epidemiologic studies in the Russian Federation, Belarus, and Ukraine.
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© 2007 Risk Assessment Corporation. All rights reserved.
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