Faculty remembers one of civil engineering's first professors
Waterloo Engineering is mourning the loss of Dr. Sinnathamby Thambithurai (S.T.) Ariaratnam, one of the earliest members of the Department of Civil Engineering. He passed away on April 2, 2026. He was 92.
Ariaratnam joined the University of Waterloo in September 1962, recruited as one of the institution's first engineering professors when it was only a few years old. He taught in the department for nearly four decades until his retirement in 2001, and was named Distinguished Professor Emeritus in 2002.

fertilizer contaminants, engineering researchers from the University of Waterloo's Water Institute have found.