SCHC Officers and Directors
SCHC President
Tracy H. Graham
SCHC Vice President
Atanu K. Das
SDSWriter
SCHC Secretary/Treasurer
Karin F. Baron, MSPH
Board Members - September 1, 2025 - August 31, 2027
Michelle Baker
ZEON Chemicals
Anne DeMasi
Rio Tinto Lithium
Allan Jemi-Alade, Ph.D.
Afton Chemical Corporation
Ari Lewis
Gradient
Board Members - April 1, 2024 through August 31, 2026
SCHC Past President
Elizabeth Dederick, Ph.D.
ERM
Darcy M. Evans
Hexion
James C. Lee, JD
Hach Company
Chair, 4/1/24-3/31/25
Katie McGee, SDSRP
Sphera
Michele R. Sullivan, Ph.D.
MRS Associates
Danielle Svestka
ERM



SCHC Committees
View the committees on our website, each of which includes a brief description of the function,
and the current Chair and Board Liaison for each committee.

Alliances
The Alliance Committee organizes and maintains SCHC growing network of regulatory connections and HazCom leaders.