R. Allan Freeze is now retired. He was for many years the President of R. Allan Freeze Engineering Inc. based in White Rock, BC, Canada. During his consulting career, he worked for both private sector clients and government agencies on projects involving groundwater supply, groundwater contamination, geotechnical seepage, land subsidence, and nuclear waste disposal. Prior to establishing his consulting practice, Allan Freeze worked as a research scientist for Environment Canada in Calgary, AB and the IBM Thomas J. Watson Research Center in Yorktown Heights, NY, and as a Professor at the University of British Columbia in Vancouver, BC. During his 18 year career at U.B.C., he was Director of the Geological Engineering Program for six years and Associate Dean of Graduate Studies for three years. During his academic career Allan Freeze published over 150 research papers. He has received the Horton and Macelwane Awards from the American Geophysical Union, the Meinzer Award from the Geological Society of America, the Hubbert Award from the National Ground Water Association, and the Theis Award from the American Institute of Hydrology. He is a Fellow of the Royal Society of Canada. He is a former Editor of the journal Water Resources Research, and a former President of the Hydrology Section of the American Geophysical Union. In 2002, he was awarded an honourary Doctor of Science degree from the University of Waterloo in Waterloo, ON. He is coauthor, with John Cherry, of the widely used textbook “Groundwater.” He is also the author of two popular-science books: “The Environmental Pendulum: A Quest for the Truth about Toxic Chemicals, Human Health, and Environmental Protection,” published by the University of California Press in 2000, and “The Fluoride Wars: How a Modest Public Health Measure Became America’s Longest-Running Political Melodrama,” published by John Wiley and Sons in 2009.