2023 Board Elections Candidate Bios

American Association of Radon Scientists and Technologists

Indoor Environments Association

AARST Election Ballot

Voting in the 2023 AARST election opens on October 14 and closes on October 30 at 1 p.m. ET. Members will receive by email from AARST’s balloting software, the opportunity to select the Association’s next President Elect and other officers as well as five National Directors. The following are those candidates for the 2023 election.

President Elect

Executive Vice President, Spruce Environmental, Inc.
Dave Hill is Chief Revenue Officer of Spruce Environmental Technologies, Inc. He is responsible for the overall revenue growth strategy of all Spruce brands and divisions, including RadonAway, AccuStar, Air Chek, Spruce Training, and Spruce Ventilation. A former radon mitigation contractor with a business that served Connecticut, New York, Rhode Island, and other states and managed mitigations nationally. He is a Past President of AARST, Past President of the New England Chapter of AARST, and a current Vice President of AARST, and Board member of the Basement Health Association. He also serves on ANSI/AARST Standards committees. Dave has a degree in business management from the University of Rhode Island, where he also studied engineering and played rugby, a sport he still plays whenever his body allows.

Vice President

Laura Armul is currently the Sales and Marketing Director at SunRADON, LLC. Laura has 24 years of experience with all aspects of Radon product sales, marketing, and continuous radon monitor product development. Bachelor’s degree from the University of Central Florida. Member of the AARST Board of Directors from 2019-2022 and former Ethics Chair and member of the technical and science committee. President of the newly formed Florida Chapter.

Vice President

Partner, Barnes & Thornburg LLP
David Gillay chairs the Environmental Law Department and heads the Remediation, Redevelopment, and Environmental Transactional Practice Groups. He provides environmental counseling in connection with assessing, remediating, and redeveloping contaminated properties. Over the last 20 years, David has focused on the legal, regulatory, and technical impact and implications related to the vapor intrusion pathway and potential long-term stewardship obligations. He works closely with leading technical experts on a wide array of environmental matters, including toxic tort litigation, risk-based closure, VI guidance, and changes to toxicity for TCE, PCE, and other contaminants. Prior to joining Barnes & Thornburg, he obtained an advanced environmental engineering degree and practiced as an environmental consultant with a national firm.


President and Director of Education, CERTI, Inc.
Jan Fisher is the President and Director of Education at the Center for Environmental Research and Technology, Inc., a leading source of online education for the radon industry located in Flemington, NJ. Her widespread experience within the radon industry has helped her to work with industry experts to provide CERTI students with exceptional education; she works hard to grow relationships and meet each student’s needs. Prior to working at CERTI, Jan worked as the National Sales Manager of Radon Supplies for 15 years and holds widespread experience in the radon industry. In her previous life, Jan was a broker in the chemical industry, operating out of the greater NYC area, where she learned from the best salespeople in the chemical industry how to treat customers, maintain strong business relationships, and grow new ones. The main focus of her “job,” both then and now, is to help her customers grow their businesses. Jan is currently serving on the AARST National Board of Directors, sitting on the Ethics Committee, and is the Chair of the AARST Advocacy Committee. She also serves as Vice President of the NJ AARST Chapter, and as Vice President of Citizens for Radioactive Radon Reduction (CR3), a national non-profit organization advocating for Radon awareness. In her spare time, Jan enjoys spending time with her family, traveling, playing the piano, gardening, golfing, and serving her community through both her local government and Lion’s Club. Jan is proud to be a part of the Radon awareness culture that is starting to flourish. INCUMBENT


President, DuPage Radon Contractors
Dan Potter is a businessman having held multi-million-dollar P&L responsibilities for start-ups, turnarounds, and fast-growth companies and business divisions within the home services industry.   He is currently co-owner of DuPage Radon Contractors, a larger Midwest radon mitigation company. He is the current AARST Treasurer, Vice President of Midwest AARST, President of the Illinois Radon Policy Taskforce, and sits on twelve radon-related committees. He holds a couple of collegiate degrees and various certifications in building science and construction. He has achieved licensure as a general contractor, electrician, and real estate agent. Dan has been a guest speaker at numerous radon events and has been interviewed by local and national publications and shows. He has also been deeply involved with a select handful of charities over the years. Dan deeply appreciates the AARST mission and enjoys the people involved at all levels. INCUMBENT

Nationally Elected Directors

President PA AARST Chapter; Dir: MOVES Radon EJ, Activist
Nate Burden is a radon scientist/consultant with over 30 years in radon testing/mitigation.  Installed/designed over 5,000 radon mitigation systems (residential, commercial, special historical, school districts, and military facilities). Performed specialized chemical vapor intrusion mitigation projects. AARST PA Chapter president. He sits on the National Radon Action Program (NRAP). Board member of AARST Foundation and CR3. He currently sits on the PA DEP Radiation Protection Advisory Committee. Member of the ANSI/AARST radon measurements and mitigation standards committee. Sit on the PA DEP Radiation Program Advisory Committee (RPAC). Sit on the PA Cancer Coalition and PA DOH Health Equity Committee. Director for the MOVES Radon EJ Project that services low-income and disadvantaged communities. Consultant/director for radon testing/diagnostics/mitigation for the US DOD-military facilities in Garmisch-Partenkirchen/Augsburg, Germany, Livorno, Italy, and Philadelphia Naval-Support Facilities. Attended Carnegie-Mellon University as a physics major with graduate studies in nuclear engineering. Awarded the 2021 Radon Hero Award by the Conference of Radiation Control Program Directors (CRCPD).

Managing Partner, 5280 Radon Mitigation
For more than a decade, Bryan Coy has been actively involved in the Colorado Radon Industry as a Mitigator. He cofounded 5280 Radon in 2014, consistently striving to deliver expert and honest services to our valued clients. In 2019, he took on a pivotal role in the industry by helping RMAARST (Rocky Mountain Chapter of the American Association of Radon Scientists and Technologists) establish its Annual Chapter Golf Tournament, which has now successfully completed its fourth year. Following this, Bryan joined the RMAARST Board as a Member-at-Large, contributing my expertise and insights to the organization. During the same year, in 2019, Bryan provided expert testimony to both the House and Senate committees, playing a crucial role in the successful passing of a law in Colorado that mandates the licensure of radon professionals. In 2020, he collaborated with AARST (American Association of Radon Scientists and Technologists) to create the Lowe’s Member Benefit Program. Later that year, became a part of the Membership Committee, contributing to the growth and development of the association. In August 2021, Bryan was elected President of RMAARST. One of his major accomplishments was the successful implementation of a new Notification and Disclosure Law in Colorado, which has significant implications for the industry and its stakeholders. Bryan aspires to leverage his experience and innovative ideas to contribute to the growth and evolution of the AARST National Board. As we transition into the Indoor Environments Association, I am enthusiastic about helping the organization embrace its next chapter and achieve new heights.

Vice President, Sales & Marketing, Radonova
Zan Jones is the Vice President of Sales and Marketing for Radonova, Inc. where she manages the U.S. and Canadian markets. She began her role at Radonova in February 2022 and since then has participated as a volunteer in helping both Colorado and Illinois pass radon protection laws. Currently, Zan serves as the Member-at-Large Board Member of Rocky Mountain AARST. She has extensive experience in the commercial building construction industry and the medical diagnostic industry and holds a bachelor’s degree in Business Marketing from Texas A&M University and an MBA from the University of Texas at San Antonio.

National Director of Business Development, Protect Environmental
Terry is an NRPP-certified mitigation and measurement professional licensed in Colorado. After losing a friend to radon-induced lung cancer Terry leads with passion and purpose. Terry currently serves on the AARST Government Affairs Committee, served on the National Board, and as President and Treasurer of the Rocky Mountain Chapter. With a background in finance and more than two decades of experience growing multiple businesses, she is currently the National Director of Business Development at Protect Environmental and the former owner of Reliant Radon Solutions.


President, Radon Detection and Control, LLC
John Mallon is the President and CEO of Radon Detection and Control, LLC, which he founded in 1986 in Western Pennsylvania / Northern West Virginia Area. John has installed over 45,000 Residential Radon Mitigation Systems and Thousands of Large Radon and Vapor Intrusion Mitigation Projects (Schools, Large Buildings, and Multifamilies). His prior relevant experience includes 10 years in Field Engineering and QA/QC- Nuclear Power Plant Construction / Modification. AARST Member since 1988. Served AARST as Board Member, Vice President, Symposium (Chairperson, Presenter, Moderator, Technical Chair, etc.), Board Member Pennsylvania AARST. Member of AARST lobbying team to US Senate Members and Pennsylvania Congressional Members. John chaired the AARST/ANSI Standard for Multifamily Mitigation. He taught certification and continuing education classes in the US and Canada. John is very proud to have served the radon community and is interested in continuing the work. INCUMBENT


Director of Environmental Health, the American Lung Association
Kevin Stewart has served the Lung Association since 1987. Mr. Stewart has been honored to serve as a member of the AARST Board of Directors (2009-2015) and the Policy Advisory Board of NRPP (2008-2019). He has experience with radon issues regarding policy, law, and scientific and technical review. He is a member of the ANSI-AARST Committees for Measurement and NCSG standards and serves on the Executive Stakeholder Committee of the AARST Consortium. He works on the Lung Association team supporting the National Radon Action Plan, including creating resources for professional use. He has directed grant-funded radon reduction projects annually since 1990 (for which work he was recognized in 2008 by CRCPD). Mr. Stewart holds a Bachelor of Science degree in chemical engineering from Princeton University. He resides with his family in Lancaster, PA.


Chief Executive Officer, SWAT Environmental
Bill is passionate about quality, service excellence, people, and growing the Radon Industry. He has been instrumental in the support and execution of creating the Tennessee Chapter of AARST. He has a long history of leading businesses in the home services industry, including 23 years with ServiceMaster– specifically as Chief Sales Officer for Terminix and TruGreen. He strongly believes there is a tremendous opportunity to increase the awareness of radon and to save lives. He wants to leverage his expertise, leadership, business acumen, and experience on the advocacy side of the industry, among others. He has served similar committees and organizations with similar responsibilities including the National Pest Control Association and is eager to utilize his leadership, problem-solving, regulatory, advocacy, and communication skills to assist and serve the radon industry in the growth and awareness of the dangers of radon gas. Bill is based out of Milwaukee, Wisconsin. Bill and his wife Natasha are proud parents of three boys.


National Manager, Building Sciences, EBI Consulting
Meet Mike Walther, a professional with over 30 years of experience in radon testing and mitigation management, environmental consulting, industrial hygiene, and indoor air quality. With a deep understanding of radon science, Mike Walther has conveyed both the fundamentals and intricate details to clients and the public, empowering them with knowledge. In addition to his technical expertise, Mike Walther possesses over 25 years of experience in business development, SOP design, and instructional and business document development. Other relevant experience includes the roles of certification and licensing officer at three firms, and radiation safety officer at one firm. With over 20 years of Due Diligence industry experience at EMG (Bureau Veritas) and EBI Consulting and seven years of hazardous materials consulting for Baltimore County Public Schools, Mike Walther has helped develop solutions for key private and public stakeholders. He is dedicated to creating healthier and safer environments for all.


Chief Executive Officer, SunRADON, LLC
Dr. Kai Wundke is the Chief Executive Officer of SunRADON LLC. Prior to SunRADON, Kai spent 10 years at Sun Nuclear Corporation as an executive responsible for the company’s R&D and Operations teams which included the Radon business unit that later was spun out to create SunRADON. He brings 20+ years of experience working at start-ups and Fortune 500 companies leading their product development, operations, and navigating complex regulatory environments within several industries including medical devices and telecommunication equipment manufacturers.  Kai’s passion is to expand radon awareness and bring solutions to the market that allow cost-effective and efficient Radon and Indoor Air Quality testing of every home, school, or indoor facility.  Kai holds a PhD in Physics from Dresden University, Germany, and is the author of several patents and more than 40 publications in peer-reviewed Journals, Technical Magazines, Conference Proceedings, and Seminars.