We deeply appreciate the thorough and useful reviews of and contributions to this book by the following individuals:
- Huaming Guo: China University of Geosciences, Beijing, China;
- Everton de Oliveira: Director of Hidroplan, São Paulo, Brazil; member of the Board of Director of The Groundwater Project;
- Gavin Kennedy: Nova Scotia Department of Energy and Mines, Halifax, Nova Scotia, Canada;
- Hun Bok Jung: New Jersey City University, Jersey City, New Jersey, USA; and,
- Hugh Whiteley, University of Guelph, Guelph, Ontario, Canada.
We are also grateful to Amanda Sills, Connie Bryson, Nithya Mani, and Juliana Apolonio of the Groundwater Project for their oversight and copyediting of this book. We especially thank Eileen Poeter (Colorado School of Mines, Golden, Colorado, USA) for her patience and hard work reviewing, editing, and producing this book. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.