Tetra Tech appoints ex-American Water CEO Susan Hardwick and ex-US Ecology CEO Jeff Feeler to board

TETRA TECH INC

M. Susan Hardwick and Jeffrey R. Feeler appointed to Tetra Tech board, effective December 29, 2025.
Hardwick, former CEO of American Water (2022-2024), joins Audit and Nominating/Governance committees.
Feeler, former Chairman/CEO of US Ecology (2013-2022), joins Audit and Compensation committees.
Both will receive standard non-employee director compensation: $110K annual retainer plus $175K equity award pro-rated.
Board expands to eight members with these appointments.

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