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Tom Carpenter | Executive Director
Phone: 206-292-2850 x22
Tom Carpenter is the Executive Director of the Hanford Challenge. He brings decades of experience in organizing, litigating, and policy oversight in the nuclear field, much of it devoted to Hanford. He is an attorney, a graduate of Antioch School of Law, and has a Masters in Organizational Design and Renewal from Seattle University.
Tom worked as the Director of the Nuclear Oversight Campaign for the Government Accountability Project from 1985 to 2007. He founded Cincinnati Alliance for Responsible Energy (CARE) , which challenged plans to open the defect-ridden Zimmer Nuclear Power Plant. Tom also served on the Cincinnati Mayor’s Environmental Advisory Council.
Through his work at GAP and Hanford Challenge, Tom has visited dozens of nuclear sites in the U.S. and Russia, hosted international conferences on protecting nuclear whistleblowers and examining the legacy of highly-contaminated nuclear facilities, and focusing on the Hanford Nuclear Site in southeastern Washington State.
Tom helped establish and is a Board member of the Hanford Concerns Council (and its predecessor, the Hanford Joint Council) to mediate and resolve difficult and complicated issues relating to Hanford.
Tom has represented numerous whistleblowers and workers at various nuclear sites around the nation, including at commercial and military nuclear production facilities, such as Hanford, Los Alamos, Knolls Atomic Power Lab, Pantex, Lawrence Livermore, Fernald, Mound and others. He has authored numerous reports and articles on the effects of nuclear production on workforce health and safety and the environment, and established and participated in independent environmental sampling programs at Hanford, Los Alamos, and Russian nuclear sites.
Liz Mattson | Outreach Director
Phone: 206-292-2850 x21
Liz Mattson is the Outreach Director for Hanford Challenge. She brings a refreshing spirit of creativity and reflection to the problems posed by Hanford. Liz has worked closely with Hanford workers to address safety and health problems they are facing, particularly from chemical vapors in the tank farms. She meets with state regulatory agencies and site management to influence their approach to safety issues and their response to injured workers with a goal of having workers’ experience respectfully acknowledged and addressed.
Liz is very active on the Hanford Advisory Board (HAB) where she is the chair of the Public Involvement and Communications Committee, encouraging a more strategic approach to public involvement at Hanford. Liz is also involved on the River and Plateau and Tank Waste Committees of the HAB.
Liz helped launch Inheriting Hanford, a regional Hanford mentorship community, empowering young people to become dynamic participants in Hanford cleanup.
She is a strong advocate of working collaboratively to address the problems posed by Hanford. Dealing with decades of contamination will require an intergenerational, multi-stakeholder approach. By building relationships, encouraging openness and trust and working to understand divergent points of view, the broader community of stakeholders will be better equipped to confront the uncertainties and challenges that face remediation efforts.
Nikolas F. Peterson | Staff Attorney
Phone: 206-292-2850 x25
As Staff Attorney, Nikolas Peterson primarily provides legal representation and assistance to workers at the Hanford Nuclear Reservation. His practice focuses on assisting Hanford whistleblowers who have experienced retaliation for raising safety concerns. He has assisted dozens of Hanford whistleblowers, including a few of the highest-profile whistleblowers in the nation.
Nikolas earned his B.A. in History from Walla Walla University (Senior Thesis: U.S. Dept. of Energy & Washingtonians: A Toxic Dose of Mistrust) and his J.D., cum laude, from Seattle University School of Law. While at SU Law, he served as Research & Technical Editor of the Seattle Journal for Social Justice. His publications include The Current State of Whistleblower Law in Europe: A Report by the Government Accountability Project.
Nikolas is a 4th-generation Washingtonian and feels great responsibility to those who call the Pacific Northwest home to help ensure a safe and effective cleanup of Hanford.
Signe Lindquist | Outreach Intern
Signe Lindquist is the most recent addition to Hanford Challenge as a summer intern. She is a current Junior majoring in Sociology- Environmental Studies and Spanish at Whitman College. Though she grew up in the Seattle area, she was shocked to have never learned about the Hanford site until coming to college in Walla Walla, WA. Since hearing about the complexity that is the history of Hanford through the mentorship of her professors, she has been invested in studying and spreading awareness of this issue. Signe is enthusiastic about bringing her background of nonprofit campaigning, event planning, and social media management to getting involved with Hanford Challenge's work, soaking up all possible information to be known, and engaging with the next generation to inherit Hanford.