John Boyer John E. Boyer is an Environmental Scientist at the New Jersey Department of Environmental Protection in Trenton, New Jersey. He worked with the NJDEP from 1988-2018 and was a principal in developing vapor intrusion (VI) policy for the Department. John is co-author of the NJDEP Indoor Air Sampling Guide for Volatile Organic Contaminants (1999) and the more recent NJDEP Vapor Intrusion Technical Guidance (2016). He routinely presents on vapor intrusion issues at various conferences and seminars. John has been Co-Team Leader for the Interstate Technology and Regulatory Council (ITRC) Vapor Intrusion team from 2007 -2011 and the Petroleum Vapor Intrusion Team from 2012 to the present. He earned a bachelor's degree in biology from Belmont Abbey College in Belmont, North Carolina in 1980 and a master's degree in environmental science (human toxicology concentration) from Drexel University in Philadelphia, Pennsylvania in 1985.