Tetra Tech, Inc. (NASDAQ: TTEK), a leading provider of high-end consulting and engineering services in water, environment, and sustainable infrastructure, announced today that M. Susan Hardwick, recently retired Chief Executive Officer of American Water, has been appointed to the Company’s Board of Directors, effective December 29, 2025. Ms. Hardwick will serve on the Audit Committee and the Nominating and Corporate Governance Committee.
Ms. Hardwick is a highly respected executive in both the water and energy utilities sectors, with more than 35 years of financial, operational, and strategic leadership across water supply, water treatment and natural gas and power generation companies. She most recently served as CEO of American Water, the largest regulated water and wastewater utility in the United States, where she led 6,500 employees serving 14 million people in 24 states. Prior to becoming CEO, she served as American Water’s Chief Financial Officer, overseeing financial strategy, investor relations, regulatory services, internal audit, risk management, and capital planning.
“Susan brings exceptional financial acumen and deep leadership experience from the nation’s foremost water utility, making her an outstanding addition to our Board,” said Dan Batrack, Tetra Tech Chairman and CEO. “Her insight into water utilities, long-term capital planning, and utility operations perfectly complements our focus on the water market. As we continue to expand our high-end consulting services in water globally, Susan’s strategic perspective and understanding of our clients’ needs will be invaluable.”
Ms. Hardwick currently serves on the board of New Jersey Resources Corporation, a public energy services company, providing additional expertise in risk oversight, governance, and large-scale energy utility operations. She began her career in public accounting with Arthur Andersen, developing deep capabilities in regulatory accounting and financial controls. She holds a B.S. in Accounting from Indiana University Bloomington.
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