Our Growing List of Speakers
Steve Sanders - Director - Division of Remediation/Central Office
After 20 years in the private sector as a consultant, Steve Sanders joined TDEC in 2019 as the director of the Division of Remediation. He served as the southeast regional manager for PSI, prior to working in state government. Steve’s extensive experience in brownfields redevelopment allows him to bring a full understanding of the issues facing owners and developers during the brownfield redevelopment process and to help mitigate those issues through a creative and collaborative process. His experience in brownfield redevelopment includes numerous projects utilizing a variety of technologies to mitigate vapor intrusion concerns in both new construction and retrofitting existing buildings. Steve holds a B.S. in Environmental Science from Middle Tennessee State University, is married with one child, and lives in LaVergne, TN.
Roger Brewer - Senior Environmental Scientist - Hawai’i Department of Health
Roger Brewer is senior environmental scientist with the Hawai’i Department of Health. His environmental experience includes regulatory compliance audits, characterization of contaminated land and sediment, contaminant fate and transport, vapor intrusion and human health and ecological risk assessment. He has also worked as an environmental consultant in the US, Asia and South America and as a senior geologist and environmental risk assessment specialist for the California Environmental Protection Agency. Since 2005, Roger has focused on the development of Decision Unit and MultiIncrement Sample (DU-MIS) site investigation methods as a replacement for less reliable, discrete sampling methods. Other ongoing research interests include the chemistry and toxicity of Total Petroleum Hydrocarbons (TPH) and the development of risk-based action levels for polyfluoroalkyl substances (PFASs). His academic background includes a PhD in geology and post-doctoral research at Nanjing University in China.
Amy Potter - Program Manager - Risk Assessment Program - Georgia Environmental Protection Division
Experienced manager and regulator with 28 years of experience in state government . Skilled in Technical Writing, CERCLA, and RCRA. Bachelor's degree in Mechanical Engineering from Georgia Institute of Technology.
Ahmet Bulbulkaya - Environmental Fellow Division of Remediation/Central Office
Ahmet Bulbulkaya is currently one of the Environmental Fellows for TDEC’s Division of Remediation. He has been involved in assessing the vapor intrusion pathway at hazardous substance sites since the late 1990’s when he was hired by the Virginia Department of Environmental Quality shortly after the inception of their Voluntary Remediation Program. In 2010 he moved to Tennessee with his family and began working with TDEC’s Division of Remediation. He is still heavily involved in vapor intrusion issues and is one of the main authors developing a vapor intrusion guidance specific to Brownfield projects being managed under the State’s Voluntary Oversite and Assistance Program (VOAP). Ahmet has a master’s degree in Environmental Toxicology from the Duke University Nicholas School of the Environment.
David Edelstein - Partner - Vorys, Sater, Seymour & Pease
David is a partner in the Vorys Cincinnati office. His current practice is focused on environmental regulation, enforcement, environmental liability insurance, and transactional matters. He works with businesses and government institutions to ensure that their operations are compliant with environmental law. He provides advice to businesses that helps minimize operational and legal risks. In his work, he appreciates clients’ desires to keep the environment clean and safe.
Prior to joining Vorys, David served as chief of the criminal enforcement unit for U.S. EPA Region VI in Dallas, Texas. He also served as a RCRA enforcement attorney for the U.S. EPA. His federal court enforcement experience includes trial and litigation work, where he worked closely with the Department of Justice, U.S. Attorneys Offices, and other state and federal regulatory agencies.
Steve Wilson - Technical Director at EPG and EPG Australia - The Environmental Protection Group Ltd
Steve has over 30 years’ experience in the assessment, design and construction of ground gas protection. He has written numerous technical papers on the subject and contributed to most of the recent UK guidance, including BS8485, BS8756, CIRIA C735, CIRIA C795 and CIRIA C801. He is a member of the working group that is updating ASTM E2993 – 16, Standard Guide for Evaluating Potential Hazard as a Result of Methane in the Vadose Zone.
He is a Chartered Engineer, a Society of Brownfield Risk Assessment (SoBRA) Accredited risk assessor and a UK Registered Ground Engineering Adviser. Steve has extensive on-site experience of gas protection installation in both buildings and in-ground systems. He has designed several UK gas protection systems that follow US guidance (for US clients). He also has a wealth of general civil engineering construction experience. He is one of the founders of the CLAIRE Accreditation Scheme for Gas Verification Consultants. He acts as an expert witness in legal cases involving ground gas emissions including sites in Australia, UK and Bangladesh. He provides expert support to several Contaminated Sites Auditors in Various states in Australia. Steve has also helped develop continuous gas monitoring instruments and analytical methods via his directorship of Ambisense from 2018 to 2021.
Jennifer Borski - Vapor Intrusion Team Leader, Hydrogeologist WDNR
Jennifer Borski transitioned to the Vapor Intrusion Team Leader position with the Wisconsin Department of Natural Resources (WDNR) in June 2019. She is located in Oshkosh, Wisconsin and leads the state’s Drycleaner and Vapor Intrusion Team (DVIT) within the Remediation and Redevelopment (RR) Program. The team works to identify policy issues, develop guidance and provide training regarding the vapor intrusion pathway and state’s Dry Cleaner Environmental Response Program. Jennifer also serves as the WDNR’s liaison with the Wisconsin Department of Health Services related to vapor intrusion issues. Prior to June 2019, Jennifer served WDNR for 20 years as a Hydrogeologist in the RR Program regulating the investigation, remediation and redevelopment of contaminated properties in east-central Wisconsin, including discharges from dry cleaners, paper mills, metal plating facilities and other historical industrial and commercial operations. She continues to serve as DNR Project Manager for a handful of these sites. Jennifer contributed to ITRC as a team member on the Vapor Intrusion Mitigation Training Team and instructor for the internet-based training. Jennifer graduated from the University of Wisconsin – Eau Claire in 1996 with a Bachelor of Science degree for Geology and Mathematics.