Chi Ho Sham (he/him/his) is a Vice President and the Chief Scientist of ERG in Lexington, MA, where he works in drinking water protection and water quality issues. He is an active member of the American Water Works Association (AWWA) and served as its President from June 2021 to June 2022. He is a member of the Source Water Protection, Climate Change, Utility Quality Management, and Stormwater Management Standard Committees in AWWA. He received his B.A. from the University of Regina in Canada and his M.A. and Ph.D. from the University at Buffalo. He is also an adjunct professor and a research fellow at Clark University in Worcester, MA.