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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z David Alleman is an envir​onmental manager with ALL Consulting. He served as the 2012 David Keith Todd Distinguished Lecturer for the Groundwater Resources Association of California and was named Fellow of the Geological Society of America in 2009. Benjamin Nelson Government Service Award of the Groundwater Foundation, the NGWA John Hem Excellence in Science and Engineering Award, and a Meritorious Presidential Rank Award. Air Force Civil Engineer Center in San Antonio, Texas. He has been involved in numerous groundwater studies in Latin America, Canada, and the United States, related to evaluation of groundwater, resources and groundwater protection. He was formerly employed at Stone and Webster Engineering, where he performed hydrogeologic investigations at nuclear and coal-burning power plants, and characterized flow regimes at hazardous and proposed radioactive waste sites.

He has a long history of environmental r​esearch related to energyproduction in the United States. Department of Energy, he was previously involved in many of the significant technical and regulatory environmental issues affecting industry during the last 20 years. A long-time NGWA member and volunteer, Alley has been a director of the NGWA Scientists and Engineers Division, served on various committees and task groups, and cochaired the 2007 NGWA Ground Water Summit. Following his doctoral work at Ohio State University, he worked as a postdoctoral researcher for the U. Environmental Protection Agency in the Cincinnati, Ohio, division of the National Center for Environmental Assessment in the Office of Research and Development. Aravena consults as part of the expert pool of the International Atomic Energy Agency, Vienna, Austria, for their projects worldwide. Nina Baird is a faculty member at Carnegie Mellon University in Pittsburgh, Pennsylvania, doing research and teaching about effective buildings and their environmental impact. D., is a professor and former chair of the Chemistry Department at Western Michigan University.

Alleman's energy and environmental experience includes conventional oil and gas production, as well as water use and water treatment issues related to coal bed natural gas, shale gas, oil shale, processing, and coal. Alley earned a bachelor's degree in geological engineering from the Colorado School of Mines, a master's degree in hydrogeology from Stanford University, and a doctorate in geography and environmental engineering from Johns Hopkins University. Anderson has helped pioneer programmatic surveillance of emerging contaminants and issues, as well as provide technical expertise to the U. AF Environmental Restoration Program in the areas of soil science, environmental toxicology, and quantitative data analyses. His current research focuses on groundwater contamination caused by agricultural and industrial activities. Her current research focuses on community-scale geothermal heat pump systems. He's an associate editor for Groundwater Monitoring & Remediation®, an NGWA publication, and has also authored or coauthored numerous papers, book chapters, and reports.

Previous to this position, he served as chief of the Office of Groundwater at the U. He also served as the groundwater coordinator in the National Water Quality Assessment Program and coordinator of the Regional Aquifer System Analysis Program. in geology, specializing in hydrogeology, from Penn State University.

During his USGS career, Alley was a hydrologist in the Colorado District's Surface Water Branch, Systems Analysis Group.

Aravena has been a member of the Waterloo Centre for Groundwater Research, a worldwide recognized center of excellence in groundwater studies. in public health from the University of Illinois at Chicago. D., is a professor in the Department of Geological Sciences, Ohio State University, teaching water resources, hydrogeology, hydrogeologic field methods, and numerical modeling. Although Baird expected energy savings to be the big story, hydrogeology and groundwater microbiology became more important for long-term performance, and she is currently working with an NGWA committee in writing Hydrogeologic Guidelines for Large-Scale Geothermal Heat Pump Systems. Barcelona has served as a reviewer and consultant on a wide variety of groundwater- and hazardous waste-related cleanup efforts in the United States, Europe, and the Middle East.

His teaching involves isotope hydrology and geochemistry courses in the Department of Earth Sciences at the University of Waterloo and courses on isotope hydrology in Latin America, organized by the International Atomic Energy Agency. D., is an assistant professor of biostatistics at the University of North Texas Health Science Center at Fort Worth. Prior to Carnegie Mellon, Baird worked for several years in Washington, D. Ballard, PG, CHG, principal hydrogeologist at Taber Consultants, a groundwater resources, geotechnical, and environmental consulting firm with offices in West Sacramento, California, and Murfreesboro, Tennessee, is a registered professional geologist in California, Louisiana, and Tennessee, and a certified hydrogeologist in California. He's a member of the American Chemical Society, the American Geophysical Union, and NGWA.

His research interests include development of statistical methods for environmental monitoring data, development of statistical methodology for mental health research, and hypothesis testing and sample size determination for hierarchical linear and nonlinear models. in mathematics and statistics from the University of South Alabama and his M. C., as an environmental health consultant for EPA and OSHA. He spent time in the mining, and oil and gas industries before transitioning to groundwater and environmental consulting where he has a successful track record of innovative approaches to environmental site assessments and groundwater development. in geology from the University of Montana and an M. Barcelona has received a number of awards throughout the United States. Barden is senior hydrogeologist with Hydro Geo Chem Inc.

Aryal is coauthor of , second edition, published by Wiley in 2009. She has master's degrees in environmental science and engineering, and sustainable design, and is working on her Ph. Most recently, Ballard has been spreading the word to small water districts on how routine well assessment and maintenance can improve operating efficiencies, reduce costs, and extend the life cycle of their water supply wells. in Tucson, Arizona, and has more than 20 years' experience in the environmental industry.

Barden was previously a senior hydrogeologist with the Wisconsin Department of Natural Resources where he was responsible for development of Wisconsin's soil clean-up regulations, application of Risk-Based Corrective Action approaches, and use of natural attenuation as a remediation option.

He has been active in the development and implementation of policy and guidance for the application of natural attenuation to the cleanup of contaminated soil and groundwater for many years, and he has been involved with evaluating natural attenuation at numerous sites, ranging from fuel hydrocarbon releases to landfills. Geological Survey Office of Groundwater, based in Reston, Virginia, where his primary responsibilities are to provide technical support for groundwater-management modeling and studies on groundwater/surface water interactions.

Barden was cochair of the ASTM task group responsible for developing an ASTM standard guide for remediation by natural attenuation. During the past 15 years he has participated in the development of USGS groundwater software such as GWM — a groundwater management process for MODFLOW — and the GSFLOW groundwater/surface water flow model.

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