Vapor Intrusion and Mitigation

The assessment and mitigation of the Vapor Intrusion (VI) exposure pathway has recently become the most highly researched and regulated field in the environmental industry. Accidental releases of volatile chemicals, such as solvents or other petroleum products, into the subsurface could result not only in soil and groundwater contamination, but also contaminated soil gas plumes. If contaminated soil gas moves toward and into houses or buildings, it is then known as VI.

Vapor Intrusion Evaluations

The potential that building occupants may unknowingly be breathing potentially harmful levels of impacted air due to nearby environmental releases is prompting state and federal agencies to impose prompt and conservative regulations and guidelines. Complex procedures for conducting VI investigations and evaluating potential exposure situations are being developed, revised and updated on a constant basis by both regulators and independent scientific establishments.

While the U.S. EPA has released updated guidance on VI issues, many environmental consultants are just beginning to learn about the VI exposure pathway as awareness of the problem increases. EnviroForensics’ VI experts active members of the scientific community that is at the leading edge of the issue and our team has been conducting VI assessments and helping our clients manage the potential associated risks for over a decade. Our VI experts are sought out specifically to evaluate VI exposure pathway, even on project where other consultants are serving as the primary technical advisor.

As the regulating agencies continue to develop and update guidance and screening levels in an increasingly complex manner, EnviroForensics can help you assess your compulsory responsibility and the real level of risk from VI that may, or may not be, associated with subsurface impacts at or near your site.

Vapor Mitigation

EnviroForensics specializes in radon technology for design and installation of vapor mitigation systems to address the public health impact of chemical vapor intrusion concerns in development or Brownfields sites, dry cleaners, gas stations, commercial buildings, multi-unit residential, schools and large buildings.

Vapor Mitigation systems include Sub-Slab Depressurization Systems (SSDS) and Sub-Membrane Depressurization Systems (SMDS) to mitigate release of chlorinated solvents and gasoline containing carcinogenic compounds, such as tetrachlorethylene (perchloroethylene/perc/PCE), tricholorethylene (TCE), vinyl chloride, and benzene.

Municipalities, lenders, environmental consultants and property owners know about the impact of chemical vapor intrusion on public health and property values. Quality mitigation can restore healthy indoor air during a remediation process for site closure. EnviroForensics mitigates chemical vapor intrusion concerns as well as radon by installing systems designed for long-term reliability which meet EPA and State guidelines as well as satisfying standards set by the American Association of Radon Scientists and Technologists and National Radon Proficiency Program (AARST).

EnviroForensics is certified by the American Association of Scientists and Technologists/National Radon Proficiency Program (AARST-NRPP) and trained by both the Center for Environmental Research and Technology (CERTI) and Midwest Universities Radon Consortium (MURC) in Radon Measurements and Mitigation. U.S. EPA recommends that vapor intrusion mitigation system installers maintain such certifications. In addition, EnviroForensics has received additional or advanced training in Design & Installation of Radon Control Systems in New Buildings for Radon-Resistant New Construction (RRNC), Multi-Family Measurement and Mitigation, Advanced Diagnostics and Chemical Intrusion Vapor Mitigation, and possesses specific experience in both design and installation of active soil depressurization systems for vapor intrusion, commercial radon and new construction sites.

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Contact our Vapor Intrusion Mitigation team today!

Jeff Carnahan, LPG

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Joe Miller
Account Manager

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