Environmental engineers continue to rely on the leading resource in the field on the principles and practice of water resources engineering. The second edition now provides them with the most up-to-date information along with a remarkable range and depth of coverage. Two new chapters have been added that explore water resources sustainability and water resources management for sustainability. New and updated graphics have also been integrated throughout the chapters to reinforce important concepts. Additional end-of-chapter questions have been added as well to build understanding. Environmental engineers will refer to this book throughout their careers.

Larry W. Mays is Professor in the Civil, Environmental, and Sustainable Engineering Group in the School of Sustainable Engineering and the Build Environment at Arizona State University (ASU), and former chair of the Department of Civil and Environmental Engineering. Prior to ASU he was Director of the Center for Research in Water Resources at the University of Texas at Austin, where he held an Engineering Foundation-endowed professorship. A registered professional engineer in several states, and a registered professional hydrologist, he has served as a consultant to many national and international Organizations.

Professor Mays has published extensively in refereed journal publications and in the proceedings of national and international conferences. He was the author of the first edition of this book and Optimal Control of Hydrosystems (published by Marcel Dekker), and co-author of Applied Hydrology and Hydrosystems Engineering and Management (both from McGraw-Hill) and Groundwater Hydrology (published by John Wiley & Sons, Inc.). He was editor-in-chief of Water Resources Handbook, Water Distribution Systems Handbook, Urban Water Supply Management Tools, Stormwater Collection Systems Design Handbook, Urban Water Supply Handbook, Urban Water Resources Sustainability, all published by McGraw-Hill. In addition, he was editor-in-chief of Reliability Analysis of Water Distribution Systems and co-editor of Computer Methods of Free Surface and Pressurized Flow published by McGraw-Hill. In addition, he was editor-in-chief of Reliability Analysis of Water Distribution Systems and co-editor of Computer Methods of Free Surface and Pressurized Flow published by Kluwer Academic Publishers.