- Anne Marie White
- James Owendoff
- Susan Cange
- Monica Regalbutto
- Mark Whitney
- David G. Huizenga
- Inés Triay
- James Rispoli
- Paul Golan
- Jessie Hill Roberson
- Carolyn L. Huntoon
- Alvin Alm
- Thomas Grumbly
- Leo P. Duffy
Anne Marie White served as the ninth Senate confirmed Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from March 2018 until June 2019.
Prior to joining EM she had more than 25 years of experience across a broad range of activities within the nuclear field with industry-recognized credentials in characterization and disposition of radiologically contaminated sites; dose modeling and assessment; and data analysis and integration leading to technically underpinned and cost effective solutions. She started her own consulting firm to provide creative solutions in solving complex environmental challenges domestically and internationally with both private and public organizations. She has extensive hands-on in the field experience at many DOE sites and has supported a number of emerging nuclear power nations to develop legal and regulatory structures and national policies to deliver safe and effective solutions to develop nuclear expertise for peaceful purposes. Her international work has included producing draft national regulations for foreign governments in areas of nuclear safety, environmental protection and nuclear liability issues and is a recognized leader for innovative stakeholder outreach strategies in diverse and difficult regulatory structures.
White holds a Bachelor of Science in Mathematics from the University of Kansas and a Master of Science in Nuclear Engineering/Health Physics from the University of Missouri-Columbia.
James Owendoff served as the Acting Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management (EM) from January 1998 until July 1999 and again from June 2017 until March 2018.
Owendoff served in various other capacities in EM including: Principal Deputy Assistant Secretary; Chief Operations Officer; Deputy Assistant Secretary for Environmental Restoration; Deputy Assistant Secretary for Science and Technology; Chief Office of Project Recovery; and Senior Advisor. Owendoff also served in DOE’s Office of Civilian Radioactive Waste Management from November 2003 to November 2005 as the Associate Director for Integration.
Prior to joining the Department and his retirement from active duty in the US Air Force, Owendoff served in the Office of the Deputy Under Secretary of Defense for Environmental Security and served as Chief of the Air Force Environmental Restoration Division.
Owendoff was commissioned in the US Air Force as a 2nd Lieutenant in June 1968. He held a series of successively responsible leadership positions during his 25-year career in the US Air Force, which included assignments throughout the United States and overseas.
He graduated from Virginia Polytechnic Institute in 1968 where he earned a Bachelor’s of Science in Mechanical Engineering. He also holds a Master’s of Engineering in Mechanical Engineering from Cornell University.
Susan Cange served as Acting Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from January until June 2017.
Prior to becoming the Acting Assistant Secretary, Cange served 29 years in federal service in various leadership positions within the federal government including at the Department's offices of Environmental Management and Nuclear Energy and Assets Utilization. In addition, she was one of the founding members of the Reindustrialization Program in Oak Ridge, which transfers underutilized assets to the private sector to accelerate cleanup and promote economic development.
She was the manager for the Department’s Oak Ridge Office of Environmental Management where she was responsible for safely executing the environmental cleanup of the Oak Ridge Reservation. This entailed successfully managing the cleanup of the East Tennessee Technology Park, the Oak Ridge National Laboratory, and the Y-12 National Security Complex.
Cange holds a bachelor’s and a master’s degree in environmental engineering from Vanderbilt University.
Monica Regalbuto served as the eighth Senate confirmed Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from August 2015 until January 2017.
Previously, she served as the Deputy Assistant Secretary of Fuel Cycle Technologies in the Department’s Office of Nuclear Energy, overseeing the development of our nation’s nuclear fuel cycle. From 2008 to 2011, Regalbuto worked as Senior Program Manager with EM’s Office of Waste Processing. In 1988, she joined Argonne National Laboratory where she worked on the development of high level waste treatment technology. She joined the BP-AMOCO team in 1996 to manage many of their projects and budgets. She returned to Argonne in 2001 as the head of the Process Chemistry and Engineering Department in the Laboratory’s Chemical Sciences and Engineering Division.
Regalbuto received her bachelor’s degree in chemical engineering from the Mexican Instituto Tecnológico y de Estudios Superiores de Monterrey and a Masters and Doctorate in Chemical Engineering from the University of Notre Dame.
Mark Whitney served as the Acting Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management (EM) from July 2014 until July 2012. He served as EM’s Principal Deputy Assistant Secretary from May 2014 to July 2014.
Whitney served as a member of the US Government’s Senior Executive Service from 2005 until July 2012. From July 2011 until May 2014, he served as the acting Principal Assistant Deputy Administrator for Defense Nuclear Nonproliferation at the National Nuclear Security Administration (NNSA). In this capacity, he was responsible to the Deputy Administrator for overseeing the day-to-day operations of a $2.3 billion nuclear security and nonproliferation program that includes global nuclear security, disarmament, fissile material disposition, and nonproliferation research and development efforts. Prior to that, Whitney served as Assistant Deputy Administrator for Nonproliferation and International Security, where he was responsible for DOE’s international programs on nuclear safeguards, nuclear controls, nuclear verification/transparency, and the NNSA nonproliferation and arms control policy. He also served as the acting ADA for Fissile Material Disposition where he was responsible for the Department’s highly enriched uranium down-blending and plutonium disposition efforts, including the Mixed Oxide Fuel Fabrication Facility construction project at the Savannah River Site.
He has also served as the Executive Director of the DOE Moscow Office, where he led the Department’s in-country activities on nuclear security, nonproliferation, and energy security, including power plant construction projects in Zheleznogorsk and Seversk that provided replacement heat and electricity capacity to enable the shutdown of the final Russian plutonium production reactors. In addition, Whitney also held positions as President, Global Strategies Consulting; Senior International Program Manager, Science Applications International Corporation (SAIC); and Director of Russian Programs, Institute for International Cooperative Environmental Research – Florida State University (FSU).
Whitney holds a Bachelor of Arts and a Master of Business Administration in Finance & Investments from George Washington University and is a graduate of the DOE’s Nuclear Executive Leadership Training Program.
David G. Huizenga served as the Acting Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management (EM) from July 2011 until February 2012 and then as Senior Advisor for EM from February 2012 to May 2018.
Huizenga has over 25 years of leadership, management, and technical experience in a wide variety of programs across the Department of Energy. He began his career researching and solving some of the Environmental Management program’s greatest challenges as a Pacific Northwest National Laboratory research engineer at the Hanford site in 1985. In that capacity, Huizenga worked on long-term solutions to aging single-shell tanks that were leaking radioactive waste in the soil and other activities to protect the Columbia River and developed computer-modeling tools to evaluate the long-term performance of low-level radioactive waste forms.
Huizenga served in EM for over a decade, beginning as a technical advisor on waste management policy and ultimately served as a Deputy Assistant Secretary. He was instrumental in establishing complex-wide waste management and nuclear materials disposition strategies that were used to accelerate closure of the Rocky Flats Plant and the removal of special nuclear materials from Hanford and other sites. He worked closely with the Carlsbad Field Office to open the Waste Isolation Pilot Plant, the world’s first deep geologic repository.
In 2002, Huizenga transferred to the National Nuclear Security Administration, where he has managed several key national security programs aimed at reducing the worldwide threat of nuclear terrorism by working cooperatively with over 100 countries to secure nuclear weapons and weapons-usable nuclear materials and enhance the detection of illicit trafficking of nuclear and other radioactive materials. From February to November 2002, he served as the Deputy Director of the Office of International Nuclear Safety and Cooperation. He then went on to serve as the Assistant Deputy Administrator for the Office of International Material Protection and Cooperation. Huizenga became the Principal Assistant Deputy Administrator for the $2.5 billion Office of Defense Nuclear Nonproliferation in January 2011.
He has a Bachelor of Science in Chemistry and a master’s degree in chemical engineering from Montana State University. He graduated as Outstanding Senior Chemist, Sigma Xi, 1980, and Outstanding Analytical Chemist, American Chemical Society, 1980. He has received Meritorious Presidential Rank Awards in 2000 and 2008 and the Secretary of Energy Gold Award in 1998.
Inés Triay served as the Acting Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management (EM) from November 2008 until May 2009 when she was Senate confirmed as the seventh EM Assistant Secretary, serving until July 2011. Prior to her appointment, she served as EM’s Principal Deputy Assistant Secretary, Chief Operations Officer and Deputy Chief Operations Officer. During her tenure in these positions, the program completed the cleanup of the Department’s Rocky Flats site in Colorado and the Fernald site in Ohio. She also played an instrumental role in the commencement of remote-handled transuranic waste disposal operations at the Department’s Waste Isolation Pilot Plant in New Mexico.
Prior to her executive positions in Washington, DC, she served as Manager of the Department’s Carlsbad Field Office. During her tenure, the number of transuranic waste shipments to the Waste Isolation Pilot Plant increased from one or two per week to 25 per week. She also spearheaded a national effort to significantly accelerate cleanup of transuranic waste sites, culminating in a plan that completes the disposal of all legacy transuranic waste 20 years early. Before managing the Carlsbad Field Office, she held several key positions at Los Alamos National Laboratory.
Triay received her bachelor’s degree in chemistry, magna cum laude, and her doctorate degree in physical chemistry from the University of Miami in Florida.
James Rispoli served as the sixth Senate confirmed Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from August 2005 until November 2008. In 1999, he joined the Department of Energy from the private sector, where he had been Managing Principal for an ENR top-ranked engineering firm’s Hawaii-Pacific Region, and with a different ENR top-ranked firm, as president of a wholly-owned subsidiary known as M&E Pacific. He served as the Director, Office of Engineering and Construction Management from late 2001 until his appointment as Assistant Secretary in 2005.
Rispoli served in the uniform of our nation for 31 years, retiring as a Captain, Civil Engineer Corps, in the US Navy. During his career, he led major organizations in the fields of facilities engineering and construction management, including serving as the Public Works and Environmental Director for the Pearl Harbor Naval Complex, which included a nuclear shipyard. Prior to that, he was the top environmental official in the Naval Facilities Engineering Command and their global environmental programs.
He earned a Bachelor of Engineering in Civil Engineering from Manhattan College, a Master of Science in Civil Engineering from the University of New Hampshire, and a master’s degree in business from Central Michigan University.
Paul Golan served as the Acting Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from July 2004 to May 2005. He served six years as a commissioned officer in the US Navy and in the US Naval Nuclear Propulsion Program. Golan completed an Executive Management Program at Northeastern University before serving in multiple positions at the Department of Energy including Rocky Flats Cleanup Project, the Office of Civilian Radioactive Waste and the Office of Environmental Management. Golan earned a Bachelor’s of Science in Physics from the University of Chicago.
Jessie Hill Roberson served as the fifth Senate confirmed Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from July 2001 to July 2004. From 1996 to December 1999 she served as the Manager of DOE’s Rocky Flats Office at the Rocky Flats Environmental Technology Site in Colorado, with responsibility for integration and performance of all environmental cleanup activities on the site. She began working at Rocky Flats in 1994 as a manager of the environmental restoration programs. Prior to that, she worked as an engineer at the Savannah River Site in environmental cleanup, waste management, safeguards and security, as well as nuclear reactors and weapons. She worked at Georgia Power Company as a system engineering specialist from 1987 to 1989 focused on maintenance, testing, upgrades and performance reliability of electrical and mechanical plant system and equipment. She has extensive experience in nuclear reactor operations and successfully completed the testing requirements for reactor operations with E.I. DuPont in 1982 where she later trained nuclear reactor operators and supervisors in both nuclear and field operations. Before leaving DuPont in 1987 she worked as a nuclear reactor operations manager at several sites. From 1977 to 1980, Roberson completed work assignments as a student engineer for Westinghouse at the Clinch River Breeder Reactor in Oak Ridge, Tenn. and the Nuclear Center in Monroeville, Penn. She received a Bachelor of Science in Nuclear Engineering from the University of Tennessee in Knoxville, Tenn.
Carolyn L. Huntoon served as the fourth Senate confirmed Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from July 1999 until January 2001.
Prior to becoming Assistant Secretary, she served in various scientific and management positions at the National Aeronautics and Space Administration (NASA) including serving as the Director of the Johnson Space Center in Houston, Texas, and as a Special Assistant to the Administrator of NASA in Washington, DC. In addition, she served as an Executive in Residence in the George Washington University Project Management Program and spent two years at the White House in the Office of Science and Technology Policy where she was responsible for several interagency science programs.
Huntoon’s scientific and executive achievements have earned her the Secretary of Energy’s Gold Medal, and the Outstanding Leadership, Exceptional Service, Scientific Achievement and Distinguished Service Medals from NASA. Also, Russia with the Uri Gagarin Medal honored her for her work in space biology and medicine, and the Russian Cosmonautics Federation’s S. P. Koralov Medal was given for her leadership in the Shuttle-Mir Program. Huntoon is the recipient of the Senior Executive Service Presidential Rank Awards for Meritorious and Distinguished Service.
She received her undergraduate degree from Northwestern State College, Natchitoches, La., and her Master of Science and Doctorate from Baylor College of Medicine, Houston, Texas.
Alvin Alm served as the third Senate confirmed Assistant Secretary for the Department of Energy (DOE) Office of Environmental Management from July 1996 to January 1998. He began his government career in 1963 at the Bureau of the Budget as a senior budget examiner. In 1970, he was hired as the first staff director for the newly created Council on Environmental Quality and joined Environmental Protection Agency in 1973 as the Assistant Administrator for Planning and Management. He left EPA in 1977 then returned from 1983 until 1985 serving as the Deputy Administrator. In the 1980s he also served as EPA Assistant Secretary of Policy and Evaluation and lectured at the John F. Kennedy School of Government at Harvard University, where he directed the energy security program. He also worked as Chairman and Chief Executive Officer of Thermal Analytical Corp, Chief Executive Officer of Alliance Technologies Corp., and Senior Vice President and Board Member of Science Applications International Corps. He earned a bachelor’s degree from the University of Denver. He received a master’s degree in public administration from Syracuse University.
Thomas Grumbly served as the second Senate confirmed Department of Energy (DOE) Assistant Secretary for Environmental Management from May 1993 until May 1996.
Prior to assuming his appointment, Grumbly served as President and Chief Executive Officer of Clean Sites, Inc., from October 1987 until May 1996. Clean Sites was a non-profit organization formed by a coalition of industrialists, environmental groups and former government officials dedicated to solving America's hazardous waste problem through the site management, dispute resolution and policy analysis.
Prior to heading Clean Sites, Grumbly directed the Health Effects Institute in Cambridge, Mass. The Institute is a scientific research center dedicated to studying health effects of motor vehicle emissions. From 1982 to 1984, he was a partner in the Boston consulting firm of Temple, Barker and Sloane, Inc., where he concentrated on environmental and health issues. He was Staff Director for the Subcommittee on Investigations and Oversight of the House Science and Technology Committee from 1981 to 1982. Prior to that he served as Deputy Administrator of the Food Safety and Inspection Service of the Department of Agriculture.
Grumbly was Executive Assistant to the Commissioner of the Food and Drug Administration from 1977 to 1979. He served as budget examiner for agriculture science, technology and regulation at the Office of Management and Budget from 1974 to 1977.
He received his Bachelor of Arts in Government, cum laude, from Cornell University in 1971; a Master of Arts in Political Economy from the University of Toronto, Ontario in 1972; and a master's degree in public policy from the University of California, Berkeley in 1974. He was a visiting scholar at the Harvard School of Public Health, where he taught a course in risk analysis. He was also a lecturer in public policy at Gaucher College in Towson, MD.
Leo P. Duffy served as the first Department of Energy (DOE) Assistant Secretary for Environmental Restoration and Waste Management and served from December 1991 until January 1993. In 1989, Duffy was appointed by Secretary James Watkins to create the new office to lead the cleanup at 35 major facilities and 3,300 hazardous waste sites. The program he created consisted of 1,400 federal and 140,000 contractor employees and an annual appropriations of $5.2 billion. During his tenure he opened the Waste Isolation Pilot Plant. Duffy served as the Assistant Secretary until 1993.
Prior to joining the Department, Duffy worked as a general manager of the Westinghouse Waste Technology Service Division for Weston Services, Inc., in Waltz Mills, Penn. In the 1980s he also worked as the Executive Vice President at Roy F. Weston Corp, directing nuclear, environmental waste treatment services.
In 1976, he served as Director of Chief Naval Ops Ships Materials Readiness Program at Idaho National Engineering Laboratory (INEL), where he developed and directed the training facility, staff and logistics curriculum for 5,000 US Navy nuclear trainees. He also served as the INEL DOE Manager where he directed research and management of hazardous, toxic waste disposal operations. Prior joining INEL, he worked at Westinghouse Nuclear Power Co. as the General Manager establishing design/development nuclear plant analysis control systems.
From 1968 until 1976, Duffy was advisor under Admiral H.G. Rickover, who established the Nuclear Quality Assurance program, where he developed the initial Pressure Water Reactor design for the US Navy ships and became the Training Office for crews on naval submarines.
Duffy earned a Bachelor of Science in Mechanical Engineering from New York University.
Assistant Secretaries for Environmental Management
|William "Ike" White||Acting Assistant Secretary||January 28, 2021||November 22, 2021|
|William "Ike" White||Senior Advisor for EM to the Under Secretary for Science||June 16, 2019||January 19, 2021|
|Anne Marie White||Senate Confirmed||March 29, 2018||June 14, 2019|
|James Owendoff||Acting||June 25, 2017||March 29, 2018|
|Susan Cange||Acting||January 20, 2017||June 25, 2017|
|Monica Regalbuto||Senate Confirmed||August 10, 2015||January 20, 2017|
|Mark Whitney||Acting||May 18, 2014||May 10, 2015|
|David G. Huizenga||Senior Advisor for EM||February 15, 2012||May 18, 2014|
|David G. Huizenga||Acting||July 20, 2011||February 15, 2012|
|Inés Triay||Senate Confirmed||May 21, 2009||July 20, 2011|
|Inés Triay||Acting||November 23, 2008||May 21, 2009|
|James Rispoli||Senate Confirmed||August 10, 2005||November 23, 2008|
|Paul Golan||Acting||July 24, 2004||May 8, 2005|
|Jessie Hill Roberson||Senate Confirmed||July 18, 2001||July 24, 2004|
|James Owendoff||Acting||January 14, 2001||July 18, 2001|
|Carolyn L. Huntoon||Senate Confirmed||July 13, 1999||January 14, 2001|
|James Owendoff||Acting||January 30, 1998||July 13, 1999|
|Alvin Alm||Senate Confirmed||May 8, 1996||February 3, 1998|
|Thomas Grumbly||Senate Confirmed||May 26, 1993||May 8, 1996|
|Leo P. Duffy||Senate Confirmed||December 2, 1991||January 20, 1993|