Prof. Siegrist, PhD, PE, BCEE is Professor Emeritus of Environmental Science and Engineering at the Colorado School of Mines (CSM) and also a Professor of Civil and Environmental Engineering. He is the former Director of the Environmental Science and Engineering Division at CSM and founding Director of the Small Flows Program. Before joining CSM in 1995, Prof. Siegrist held academic and research positions with the University of Wisconsin, Norwegian Institute for Georesources and Pollution Research, Ayres Associates Inc., and Oak Ridge National Laboratory. He earned his BS (High Honors) and MS in Civil Engineering and his PhD in Environmental Engineering at the University of Wisconsin where he conducted research within the Small Scale Waste Management Project. Prof. Siegrist is an internationally recognized expert in decentralized water reclamation and in situ remediation of contaminated land. During his 40-year career he has published over 300 technical papers and 3 books and was awarded 2 patents. His new textbook, Decentralized Water Reclamation Engineering, was just published by Springer (www.springer.com/us/book/9783319404714). He has given invited keynote lectures at more than 100 workshops and conferences in more than 30 countries worldwide. He has also served as a science and engineering advisor to private and government agencies and organizations in the United States and abroad and has been a Fellow with the NATO Committee for Challenges to Modern Society.