Vapor Intrusion (VI)


Vapor Intrusion (VI) is the migration of volatile chemicals from the subsurface into overlying buildings with a potential for health risk due to exposure. Our staff is experienced in addressing VI issues through multiple lines of evidence, including sampling groundwater, soil gas, sub-slab air and indoor air, and considering building construction model, site geology and site historical data.

Exposure risk can be mitigated through soil remediation, groundwater remediation, vapor barriers and/or vapor mitigation systems which remove the harmful chemical vapors from the indoor environment.  Some of the services we offer include the following:

  • Vapor Intrusion Investigations
  • Indoor and Outdoor Air Sampling
  • Soil Gas Sampling
  • Data Evaluation and Interpretation
  • Sub-slab Port Installation and Sampling
  • Vapor Barriers and Mitigation Systems