This presentation will discuss various issues related to contaminated vapors present in soil or groundwater beneath existing or proposed buildings. The concern is that certain volatile and toxic chemicals may migrate in the form of vapor into overlying buildings.
The contaminants may be man-made (dry cleaning fluids, other solvents, or fuels) or from natural sources (radon or methane). If you own a property with historic contamination, or are looking to buy or redevelop a property, vapor intrusion regulations may affect you – even if your property is clean! Vapor intrusion is complex and difficult to assess, and these issues are receiving much more attention from both state and federal regulators. The U.S. EPA and numerous state agencies have recently issued new or revised vapor intrusion guidance documents. We will be presenting an overview of why this pathway might impact redevelopment
or remediation, possible investigation and mitigation strategies, as well as possible impacts from anticipated revisions to Michigan’s vapor intrusion program.