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Amentum Announces Hanford Leadership Changes

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GERMANTOWN, Md., March 21, 2022 –  Scott Sax, president and project manager of the Central Plateau Cleanup Company (CPCCo) – an Amentum-led nuclear cleanup contractor at the U.S. Department of Energy’s (DOE) Hanford Site – announced his retirement today after nearly 40 years in the industry.

Sax has led the cleanup effort at CPCCo since the company took over the 10-year, $10 billon contract in January 2021. He guided the company through a successful transition as the first Indefinite-Delivery Indefinite-Quantity End States contract in the DOE Environmental Management complex. Prior to that, Sax led the Amentum effort at the Waste Treatment and Immobilization Plant, completed cleanup of the Columbia River corridor as the president of Washington Closure Hanford, and served as the chief operating officer at Washington River Protection Solutions (WRPS), the Hanford tank operations contractor. Prior to his time at Hanford, Sax was responsible for Spent Fuel Management Directorate at the UK Sellafield nuclear site.

“Scott is a true leader in our industry,” said Mark Whitney, President of Amentum’s Environment & Energy strategic business unit. “His larger-than-life personality, genuine concern for his people and track record of getting the job done are the real measures of what have made him a success. We are grateful for his service, proud of what he has accomplished and wish him well in retirement.”

WRPS President and Project Manager John Eschenberg will assume Sax’s position at CPCCo, effective May 16. Eschenberg has 30 years of industry experience in a variety of highly regulated defense, commercial and government settings, leading the execution of large-value environmental cleanup project portfolios, nuclear facility operations and multi-billion dollar, first-of-a-kind construction projects.

As the CEO at Hanford’s tank farms since October 2018, John led the charge to deliver the Direct Feed Low-Activity Waste program, a DOE priority. Recently, Eschenberg announced the successful startup of the Tank-Side Cesium Removal system, a major step toward treating tank waste. Under Eschenberg’ s leadership, WRPS also completed field work on three single-shell tank retrievals and installed $750 million in infrastructure modernization projects, while maintaining one of the best safety records in the DOE Environmental Management complex. In 2021, the National Safety Council recognized Eschenberg as a CEO Who “Gets It,” one of more than 20 external awards he and the WRPS team have been recognized for in the areas of safety, sustainability, and community stewardship.

Effective April 18, Eschenberg’s position will be filled by Wes Bryan, Defense Waste Processing Facility and Saltstone Production Facility Project Director at the Savannah River Site in South Carolina. Bryan brings nearly 30 years of experience in project management, operations, maintenance, radiological controls, waste management, and emergency management to the position. He has served at multiple sites across the Department of Energy complex in numerous leadership roles, including radiological control manager, operations manager, facility manager, vice president and plant manager.



Amentum is a premier global services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. Amentum draws from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., Amentum employs approximately 57,000 people on all seven continents. Visit to explore how Amentum delivers excellence for its customers’ most vital missions.


For Amentum:
Keith Wood
+1 (803) 502-5748
[email protected]
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