vapor intrusion

When chemicals or petroleum products are spilled on the ground or leak from underground storage tanks, they can give off gases, or vapors that can get inside buildings.  Common products that can cause vapor intrusion are gasoline or diesel fuel, dry cleaning solvents and industrial de-greasers. The vapors move through the soil and seep through cracks in basements, foundations, sewer lines and other openings. Vapor Intrusion is a concern because vapors can build up to a point where the health of residents or workers in those buildings could be at risk. Some vapors such as those associated with petroleum products have a gasoline odor; others are odor-free.

Hydrometrics’ team of engineers and scientists has specialized in Vapor Intrusion investigations and evaluations.  Hydrometrics is experienced with Montana’s regulatory requirements and working with the Montana DEQ staff to find solutions to Vapor Intrusion issues.

A Vapor Intrusion Investigation includes:

  • Investigating sources of potential vapor intrusion;
  • Testing soil vapors beneath buildings, in crawl spaces and on land targeted for future development;
  • Testing indoor air;
  • Testing ambient air;
  • Performing evaluations of data against regulatory screening levels;
  • Determining if a risk to human health exist; and
  • Developing systems to reduce vapors and restore air quality.

Contact for More Information:
Kris Adler - Billings Office: (406) 656-1172
Mike Wignot - Helena Office: (406) 443-4150