The NJDEP has updated its vapor intrusion screening levels for the first time since 2007.  The new screening levels, effective as of January 16, 2013, were developed using risk-based information developed by the USEPA.

Volatile organic contaminants in soil and groundwater can migrate upward through floor slabs and basements into the indoor air.  In recent

The NJDEP has recently finalized its revamped Vapor Intrusion Technical Guidance Document to provide more in depth assistance in the evaluation of vapor intrusion concerns.  Vapor intrusion concerns relate to the potential for the migration of volatile chemicals from the subsurface and to the overlying structures.  The presence of volatile chemicals in the soil or