Ray Geimer became the Hanford Field Office (HFO) manager in September 2025. In this role he is responsible for overseeing daily operations, program planning, project execution, budgeting, complying with the Tri-Party Agreement and consent decree, and managing the Hanford Site in a safe, environmentally acceptable and efficient manner.
Geimer has more than 40 years of experience in the DOE Office of Environmental Management complex. His experience includes nuclear facility construction and operations, large-scale project management, and deactivation and demolition activities.
Prior to being named HFO manager and since May 2022, Geimer was general manager of Navarro-ATL — the contractor that manages Hanford’s 222-S Laboratory.
As vice president for Hanford’s 100 K Closure Project, Geimer managed an $80 million annual budget and a $311 million construction project for a nuclear waste packaging and transport facility. At the West Valley Demonstration Project in Buffalo, New York, he was deputy general manager and chief operating officer, overseeing nuclear operations and ensuring adherence to safety management systems within a $600 million contract.
Geimer was also chief engineer and deputy project manager for the Integrated Waste Treatment Unit in Idaho, a $680 million nuclear facility project. At the Rocky Flats site in Colorado, he managed a $200 million waste disposition program, creating cost-saving initiatives that revolutionized project operations. As office manager for Science Applications International Corporation, Geimer oversaw the Waste Management Technology Division, managing a team of 50 with profit-and-loss accountability.
Geimer holds a Bachelor of Science in chemical engineering from Clarkson University and a Master of Engineering in chemical engineering from the University of Idaho. He is a previously registered professional engineer in Idaho and holds a U.S. patent for high-temperature waste treatment.