2022
Dr. Charlotte D. Smith
2021
Charles Maddox, Texas Section
2020
Yvonne Forrest, Texas Section
2019
Dr. Desmond Lawler, Texas Section
2018
Daniel Oerther, Missouri Section
2017
Dr. Charles N. Haas, Drexel University
2016
City of Grand Rapids Water System
Michigan Section
2015
Dr. Mark Allen Borchardt
Wisconsin Section
2014
Michael McGuire
California/Nevada Section