[1] Charles O. Velzy was born in Oak Park, Illinois on March 17, 1930.
From 1966 to 1976 he was Secretary Treasurer of the Charles R. Velzy Associates, Inc., and president from 1976 to 1987.
[2] From 1987 to 1992 he served as Vice president of the Roy F. Weston Inc., and since 1992 he is private consultant and president of Charles O. Velzy, P.E., operation from in White Haven, Pennsylvania.
He is working as consultant in the field of waste treatment and disposal.
[3][4] In the year 1989-1990 Valzy served as the 108th presidents of the American Society of Mechanical Engineers.